TABLE OF CONTENTS
SPECIAL PROVISIONS
DIVISION 01 – GENERAL REQUIREMENTS SECTION 01 21 00 ALLOWANCES SECTION 01 55 26 TRAFFIC CONTROL SECTION 01 71 13 MOBILIZATION SECTION 01 89 30 RAILROAD RELATIONS SECTION 01 89 31 CITY RELATIONS SECTION 01 89 32 CALTRANS RELATIONS
DIVISION 02 – EXISTING CONDITIONS SECTION 02 41 00 DEMOLITION
DIVISION 05 – METALS SECTION 05 50 00 METAL FABRICATIONS
DIVISION 07 – THERMAL AND MOISTURE PROTECTION SECTION 07 92 00 JOINT SEALANTS
DIVISION 31 – EARTHWORK SECTION 31 20 00 EARTH MOVING SECTION 31 23 23.15 TRENCH BACKFILL
DIVISION 32 – EXTERIOR IMPROVEMENTS SECTION 32 11 33 CEMENT TREATED BASE COURSES SECTION 32 13 13 PORTLAND CEMENT CONCRETE PAVEMENT FOR ROADS SECTION 32 16 00 CURBS, GUTTERS, SIDEWALKS, AND MEDIANS SECTION 32 17 32 PAVEMENT MARKINGS AND SIGNS SECTION 32 17 33 TRAFFIC SIGNAL INSTALLATION AND MODIFICATION
DIVISION 34 – GENERAL SIGNALING REQUIREMENTS SECTION 34 42 00 GENERAL SIGNAL REQUIREMENTS SECTION 34 42 12 WAYSIDE CONTROLLER SECTION 34 42 30 RELAYS SECTION 34 42 36 MISCELLANEOUS PRODUCTS
104205 i Table of Contents SECTION 34 42 37 SIGNAL WIRE AND CABLE SECTION 34 42 60 TESTING SECTION 34 42 70 GRADE CROSSING WARNING SYSTEMS
104205 ii Table of Contents SPECIAL PROVISIONS
DIVISION 01 – GENERAL REQUIREMENTS
SECTION 01 21 00 - ALLOWANCES
PART 1 - GENERAL
1.1 SUMMARY
A. The following Contract costs will be paid for as Allowances and should not be included in the Contractor’s bid prices.
1.2 ALLOWANCES
A. Allowance Payment
1. Payment of Allowance items in this section is only for actual costs.
2. Payment for Allowance items will not be made until actual invoices, receipts, bills, and other relevant cost backup information have been submitted by the Contractor and approved by the Representative as required in Article 1D.
B. Allowance Items
1. Allowance for Permits and Fees – This Allowance is intended to reimburse the Contractor for the actual cost of permits and fees charged by other public agencies or utilities. Payment will only be made based on actual paid receipts issued by the public agency or utility.
2. Allowance for Railroad Flagging and Signal Persons -
This Allowance is intended to reimburse the Contractor for the actual cost of permits and fees charged by the Railroads for flaggers and signal inspection. Payment will only be made based on actual paid receipts issued by the Railroads.
PART 2 – PRODUCTS (Not Used)
PART 3 – EXECUTION (Not Used)
PART 4 – MEASUREMENT AND PAYMENT (Not Used)
104205 01 21 00-1 END OF SECTION 012100
104205 01 21 00-2 SPECIAL PROVISIOINS
DIVISION 01 – GENERAL REQUIREMENTS
SECTION 01 55 26 - TRAFFIC CONTROL
PART 1 - GENERAL
1.1 SUMMARY
A. Construction traffic control shall consist of placing temporary signs, cones, delineators, barricades and the use of roadway flaggers, and other controls or methods to maintain the safe movement of vehicles, non-motorized vehicles, and pedestrians through or around the work zone. Traffic control shall be in accordance with the City of San Diego Right-of-way Permit for Traffic Control requirements, California Department of Transportation, Manual of Uniform Traffic Control Devices (MUTCD), the Contract Documents, and the Contract Drawings.
1.2 REFERENCE STANDARDS
A. All references made within these technical provisions to the various standards shown in Section 1.2.B shall be limited to construction materials, methods, and all work incidental to the item of work only.
B. The following is a list of standards which may be referenced in this section:
1. City of San Diego Right-of-way Permit for Traffic Control requirements and the conditions of the Contractor’s approved permit for this project.
2. California Department of Transportation, Manual on Uniform Traffic Control Devices (CA MUTCD), 2014 Edition.
3. California Department of Transportation (Caltrans) Standard Specifications, 2018 Edition.
4. California Department of Transportation (Caltrans) Standard Plans, 2018 Edition.
1.3 SUBMITTALS
A. The Contractor shall prepare and submit Traffic Control Plan in accordance with Special Conditions Section 1D-09 and the City of San Diego’s requirements for a Right-of-way Permit for Traffic Control.
104205 01 55 26 - 1 B. All traffic control devices and their construction and use shall be in compliance with the references included in Section 1.2.B above
PART 2 – PRODUCTS (Not Used)
PART 3 - EXECUTION
3.1 TRAFFIC CONTROL
A. Construction traffic control shall consist of coordination and maintenance of access to adjacent streets and construction site during construction, including dividing the construction into three phases:
1. Phase 1: Sassafras Street north side improvements at MTS/NCTD railroad tracks.
2. Phase 2: Sassafras Street south side improvements at MTS/NCTD railroad tracks.
3. Phase 3: Sassafras Street median improvements at MTS/NCTD railroad tracks and re-striping left through lane from airport.
B. Included in traffic control are the following: preparation and approval of a City of San Diego approved traffic control plan(s), temporary AC pavement sections, temporary striping, pavement markings and signs, barricades, delineators, and flashing arrow boards as well as employment of trained roadway flaggers as required. The Contractor shall submit the traffic control plan for review and approval by the Representative and the City of San Diego prior to implementation.
C. All open trenches in areas that are opened to public traffic during non- working hours shall be steel plated (HS-20 loading).
D. Lane drops or reduction of the number of lanes, when required on Sassafras Street, shall only occur in advance of railroad tracks in each direction of travel.
E. Maintain access to driveways/property access of adjacent properties at all times unless otherwise approved by the City and Authority Representative. When approved, Contractor shall provide sufficient notice (not less than 7-Days) to adjacent property owners and tenants of planned impacts to driveway access and provide reasonable accommodations as may be required by City and Authority
104205 01 55 26 - 2 Representatives. Notices may be done by “door hangers”, certified mail or other approved means.
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. The Contract lump sum price paid for TRAFFIC CONTROL shall include full compensation for furnishing all labor, materials, equipment, tools and incidentals and for doing all the work involved in TRAFFIC CONTROL, complete in place, as shown on the drawings, and as specified in these Special Provisions.
END OF SECTION 01 55 26
104205 01 55 26 - 3 SPECIAL PROVISIONS
DIVISION 01 – GENERAL REQUIREMENTS
SECTION 01 71 13
MOBILIZATION
PART 1 - GENERAL
1.1 SUMMARY
A. As used in this section, "mobilization" includes preparatory work and operations, including, but not limited to, those necessary for the movement of personnel, equipment, materials, supplies and incidentals to and from the Work Site, for the establishment of all offices, buildings and other facilities necessary for work on the Project, and for all other work and operations which must be performed, or costs incurred prior to beginning work on the various items on the Work Site.
B. As used in this section, “Contract Price” refers to the original Contract Price established in the Contractor’s Bid.
C. The price paid for Mobilization shall be as bid and no adjustments due to increases or decreases in the Contract Price will be allowed, therefor.
D. This Project may require the Contractor to stop and then restart work to accommodate the long lead time for certain railroad signal devices. No additional price will be paid for Mobilization related to stopping and restarting the Work to accommodate the long lead time in between active construction activities.
E. Mobilization shall be limited to 10 percent of the Contract Price.
PART 2 - PRODUCTS – Not Used
PART 3 - EXECUTION – Not Used PART 4 – MEASUREMENT AND PAYMENT
4.1 The contract Lump Sum price paid for Mobilization shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all work involved in Mobilization.
4.2 Based upon the contract lump sum price for Mobilization partial payments will be allowed as follows:
A. With the first application for payment, 25 percent
B. When 25 percent or more of the Contract Price is earned, 25 percent
C. When 50 percent or more of the Contract Price is earned, 40 percent
D. With the final application for payment, 10 percent
END OF SECTION 01 73 13 SPECIAL PROVISIONS
DIVISION 01 – GENERAL REQUIREMENTS
SECTION 01 89 30 - RAILROAD RELATIONS
PART 1 – GENERAL
1.1 RAILROAD RELATIONS
A. The term "Railroad" shall mean both San Diego Metropolitan Transit System (MTS) and North County Transit District (NCTD). SDTI shall mean San Diego Trolley Inc., the wholly owned subsidiary of SDMTS, the operator of the San Diego Trolley and the legal entity to whom flagging fees are actually paid
B. The easterly two tracks at the crossing are operated and maintained by MTS while the westerly two tracks are operated and maintained by NCTD. Both agencies operate and maintain the grade crossing warning devices on their respective side of the railroad.
C. Contractor's right to enter Railroad's right of way is subject to the absolute right of Railroad to cause the Contractor's work on Railroad's right of way to cease if, in the opinion of Railroad, Contractor's activities create a hazard to Railroad's right of way, employees, and operations.
1.2 RAILROAD RIGHT OF ENTRY REQUIREMENTS
A. The Contractor shall obtain a Joint Right of Entry Permit (Permit) from the Railroad prior to entering or constructing on property owned by the Railroad. Permit fees will be required. The Permit may actually be two permits, one from MTS and one from NCTD. The Contractor shall abide by all terms of the Permit. The terms of the Permit will govern if there are any conflicts with these special provisions. Information on obtaining a Permit can be obtained at http://www.sdmts.com/business-center- permits/right-entry and http://www.gonctd.com/ROW.
1.3 REFERENCE STANDARDS
A. The following parts of the Code of Federal Regulations, Title 49, Transportation shall apply:
1. Part 214: RAILROAD WORKPLACE SAFETY
PART 2 – PRODUCTS (Not Used)
104205 01 89 30-1 PART 3 – EXECUTION 3.1 PERMIT
A. Prior to commencing any work in the Railroad or on Railroad facilities or equipment, Contractor shall obtain a valid Permit, and satisfy the conditions required of the Railroad, including but not limited to, training, payment of fees or establishing an account with Railroad therefor, providing proof insurance required by Railroad, scheduling of flag persons by both MTS and NCTD as may be required by Railroad.
3.2 UNDERGROUND MARK-OUT OF RAILROAD UTILITIES
A. Railroad is not a member of the California “One-Call” (811) System. Prior to commencing any work in the Railroad or on Railroad facilities or equipment, Contract shall arrange for underground mark-out of existing facilities owned by Railroad. Coordinate mark-out with both MTS and NCTD prior to starting work and prior to the start of each new phase or new location of construction, as appropriate.
3.3 RAILROAD FLAGGING
A. Flag protection will be required whenever working adjacent to the railroad and with the potential of fouling the tracks, affecting the operation of the grade crossing safety warning system or otherwise affecting the safe movement of either trains, roadway traffic, or pedestrians and in the opinion of the Railroad and who’s opinion shall be final.
B. Flag protection will be required on both MTS and NCTD tracks at the same time and by each agency separately unless otherwise deemed unnecessary by the Railroad. Flag protection may require multiple flag persons from the same railroad to protect workers from both directions of travel on both MTS and NCTD tracks.
C. Contracting Directly with Railroad
1. MTS - Flagging is required anytime work is within 15 feet of track including airspace or as deemed necessary by Trolley personnel. The Contractor shall complete and submit an SDTI Flagperson/Right-of-Way Work Request form a minimum of three business days prior to anticipated workday. Billing will be directly from SDTI to the Permittee (Contractor) and is separate from the Permit fee. Refer to the MTS website identified above in Section 1.2.A. for additional information.
2. NCTD – Flagging is required whenever, in the opinion of NCTD or their authorized representative, the work will have the potential of fouling the tracks or otherwise affecting the
104205 01 89 30-2 safe movement of either trains, roadway traffic, or pedestrians. NCTD’s contractor for flagging and related services is Bombardier. Contractor will be required to establish a direct contract with Bombardier for flagging and related services. Refer to the NCTD website identified above in Section 1.2.A. for additional information.
D. Railroad Flagging is unique and separate from roadway flagging that may be required by the City of San Diego for the safe movement of vehicles on Sassafras through or around the work zone(s).
3.4 RAILROAD SIGNAL PERSONS
A. Modifications to the wayside and grade crossing signal systems for the Railroad will require support, inspection or oversight and assistance from the Railroad, separate from railroad flag protection.
B. Work may require the submittal to the Railroad of work plans, drawings or other materials to support the modification of the systems including plans for safe and operable interim conditions of the signal system in the course of construction and until the final design system is in place and operating.
C. Work may require the use of Railroad flag persons to clear trains through the crossing when the crossing warning system may be in construction and not functioning or when testing the railroad-traffic signal preemption circuitry and other times as deemed necessary by the Railroad.
D. Contractor shall coordinate and arrange for such railroad signal support as required by the Railroad and prior to making any modifications to the Railroad signal system.
3.5 NIGHTTIME CONSTRUCTION
A. Due to high volumes of rail traffic (200+ trains on weekdays), work around the rails that require flagging shall be performed outside of daytime working hours unless otherwise approved the Railroad. Contractor shall plan and schedule work, including inspectors, other agencies and third parties accordingly.
B. When required, the Contractor shall obtain a Noise Abatement Permit from the City of San Diego as a condition of nighttime work. Refer to SECTION 01 89 31 – CITY RELATIONS.
104205 01 89 30-3 3.6 OTHER RESTRICTIONS TO RAIL OPERATIONS AND SERVICE INTERRUPTIONS
A. Scheduling of extended closures of rail operations on weekends or holidays (absolute work windows) that may be required to construct the improvements will be subject to approval by the Railroad and in accordance with their policies, including NCTD Board Policy 23 “Railroad Construction Scheduling and Management” among others, as applicable.
3.7 RAILROAD COST RECOVERY POLICIES
A. Railroad (MTS and NCTD) have policies requiring the full cost recovery of costs realized by the Railroad when supporting third party contractors working around their rails. Contractor will be required to enter into agreements with the Railroad and its contractors as a part of the implementation of these policies.
PART 4 – MEASUREMENT AND PAYMENT
4.1 MEASUREMENT
No separate measurement will be made for the work in this Section.
4.2 PAYMENT
Reimbursement of Contractor expenses related to Railroad Relations will be made based on the following:
A. The Contractor will be reimbursed for permit costs and fees paid to the Railroads under the ALLOWANCE FOR PERMITS AND FEES in accordance with Section 01 21 00 ALLOWANCES.
B. The contractor will be reimbursed for the cost paid for flagging and signal personnel required by the Railroads under the ALLOWANCE FOR RAILROAD FLAGGING AND SIGNAL PERSONS in accordance with Section 01 21 00 ALLOWANCES.
END OF SECTION 01 89 30
104205 01 89 30-4 SPECIAL PROVISIONS
DIVISION 01 – GENERAL REQUIREMENTS
SECTION 01 89 31 – CITY RELATIONS
PART 1 - GENERAL
1.1 CITY RELATIONS
A. The term "City" shall mean the City of San Diego. The Contractor must understand the Contractor's right to enter the City right of way is subject to the absolute right of the City to cause the Contractor's work on the City's right of way to cease if, in the opinion of The City, Contractor's activities create a hazard to the City's right of way, employees, and operations.
1.2 CITY OF SAN DIEGO RIGHT OF ENTRY REQUIREMENTS
A. The Contractor shall obtain a Right of Way Permit from the City prior to entering or constructing in the public right of way. The terms of the Right of Way Permit will govern if there are any conflicts with these special provisions.
PART 2 – PRODUCTS (Not Used)
PART 3 – EXECUTION
3.1 NIGHTTIME CONSTRUCTION
A. When required, the Contractor shall obtain a Noise Abatement Permit from the City of San Diego as a condition of nighttime work.
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT
No separate measurement will be made for the work in this Section.
4.2 PAYMENT
104205 01 89 31-1 Reimbursement of Contractor expenses related to City Relations will be made based on the following:
A. The Contractor will be reimbursed for permit costs and fees paid to the City of San Diego under the ALLOWANCE FOR PERMITS AND FEES in accordance with Section 01 21 00
END OF SECTION 01 89 31
104205 01 89 31-2 SPECIAL PROVISIONS
DIVISION 01 – GENERAL REQUIREMENTS
SECTION 01 89 32 – CALTRANS RELATIONS
PART 1 - GENERAL
1.1 CALTRANS RELATIONS
A. The California Department of Transportation (“Caltrans”) owns the right-of-way below the Overhead Connector (Bridge) between Interstate 5 and Pacific Highway and that passes over Sassafras Street. Contractor's right to enter the Caltrans right-of-way to perform the work for this project is subject to the absolute right of the Caltrans.
1.2 CALTRANS PERMIT REQUIREMENTS
A. The Contractor shall obtain an encroachment permit (Permit) from the Caltrans prior to entering or constructing in the Caltrans right-of-way. The Authority has secured preliminary permission for the right to enter and has obtained a “Parent” permit which is included in these contract documents. Contractor shall obtain the “Double Parent” permit and satisfy all conditions of said permit as may be required to construct the project. B. The terms of the Permit may include proof of insurance when working in Caltrans right of way and to the limits and of the type required by Caltrans. C. In the case of conflicts between the Permit and the plans or special provisions, the more restrictive condition shall apply.
PART 2 – PRODUCTS (Not Used)
PART 3 – EXECUTION (Not Used)
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT
No separate measurement will be made for the work in this Section.
4.2 PAYMENT
Reimbursement of Contractor expenses related to Caltrans Relations will be made based on the following:
104205 01 89 32-1 A. The Contractor will be reimbursed for permit costs and fees paid to Caltrans under the ALLOWANCE FOR PERMITS AND FEES in accordance with Section 01 21 00 ALLOWANCES.
END OF SECTION 01 89 31
104205 01 89 32-2 f STATE OF CALIFORNIA • DEPARTMENT OF TRANSPORTATION ENCROACHMENT PERMIT ' ______Page 1 of 5 TR-0120 (REV. 6/2012) Permit No. 11-19-NMC-0589 Dist/Co/Rte/PM In compliance with (Check one): 11-SD-5/R17.87 [X] Your application of JUNE 27, 2019 Date
~ | Utility Notice No. Of DECEMBER 12, 2019 Fee Paid Deposit
Agreement No. of $ EXEMPT $ EXEMPT Performance Bond Amount (1) Payment Bond Amount (2)
| R/W Contract No. of $ 0.00 $ 0.00 Bond Company N/A Bond Number (1) Bond Number (2) N/A N/A i i SAN DIEGO COUNTY REGIONAL AIRPORT AUTHORITY 3255 NORTH HARBOR DRIVE TO: SAN DIEGO, CA 92101
ATTN: MIKE RUTH PHONE: (619)400-2601 PERMITTEE
And subject to the following, PERMISSION IS HEREBY GRANTED to: enter upon State Highway right of way in San Diego County, City of San Diego, on Route 5, post mile R17.87, to facilitate the widening and improvements of Sassafras Street, as shown on the attached plans, as shown on the attached plans, in accordance with the requirements and conditions contained herein and as further directed or approved by the State's Inspector, Pedro Aguilar, telephone number (858) 688-1605, or e- mail at [email protected].
The State's Inspector shall be notified seven working days prior to starting work and prior to requesting a lane closure or an activity that may cause a traffic impact. In addition, Permittee must call Jaime Halliday, telephone number (619) 596-3217, at least seven working days prior to starting work and arrange for a mark-out. Caltrans electrical facilities may be affected by this permit work.
Working hours shall be as directed or approved by the State's Inspector and in accordance with the attached lane closure requirement chart nos. 1 r and 2.
(CONTINUED)
THIS PERMIT IS NOT A PROPERTY RIGHT AND DOES NOT TRANSFER WITH THE PROPERTY TO A NEW OWNER In addition to fee, the permittee will be billed The following att achments are also included as part of this permit (Check applicable): actual costs for: No X Yes No General Provisions ] Yes XI Review Yes X No Utility Maintenance Provisions ] Yes XI No Inspection x Yes No Special Provisions □ Yes X No Field Work Yes X No A Cal-OSHA permit, if required: Permit No. _____ Yes X No As-Built Plans Submittal Route Slip for Locally Advertised Projects (If any Caltrans effort expended) x Yes No Water Pollution Control Plan Yes No The information in the environmental documentation has been reviewed and considered prior to approval of this permit.
This permit is void unless the work is complete before DECEMBER 31, 2020, This permit is to be strictly construed and no other work other than specifically mentioned is hereby authorized. No project work shall be commenced until all other necessary permits and environmental clearances have been obtained. CN:cn APPROVED: cc: Permits Contractor OPerryman, Reg. Mgr. Permittee PAguilar, Inspector JHalliday, Elec.Maint. Gustavo Dallarda, Acting District Director
II IfY'Ux JoyTJ. Lee, District Permit Engineer ADA NOTICE: For individuals with sensory disabilities, this document is available in alternate formats. For alternate format information, contact the Forms Management Unit at (916) 445-1233, FM 91 1436 TTY 771, or write to Records and Forms Management, 1120 N Street, MS-89, Sacramento, CA 95814. SAN DIEGO COUNTY REGIONAL AIRPORT AUTHORITY 11-19-NMC-0589 DECEMBER 12, 2019 PAGE TWO
No vehicles or equipment shall be parked within the highway right of way at any time, except for those vehicles or that equipment actually engaged in the work, during the working hours specified herein.
The following District Standard Special Provisions are generalizations of the Department Standard Specifications and are included only as a Permittee convenience. Permittee's attention is directed to the current Department Standard Specifications and Encroachment Permit General Provisions (TR-0045) for complete, unabridged, specification requirements.
Once begun, that portion of the work within the State Highway right of way shall be prosecuted to completion as rapidly as possible.
All personnel on foot within the State Highway right of way shall wear personal protective equipment, including safety glasses, hard hats and American National Standards Institute (ANSI) compliant Class II vests. In addition, all personnel working at night, on foot within the State Highway right of way shall wear ANSI Class III warning garments.
The Permittee is responsible for locating and protecting all utilities both underground and aerial. Any costs incurred for locating and protecting and/or relocating any utilities shall be borne by the Permittee.
Notwithstanding General Provision No. 4, your contractor is required to apply for and obtain an encroachment permit prior to starting work. A fee/deposit of $3,772.00 is required at the time of application. Also, your contractor must submit proof that they have obtained executed bonds in accordance with General Provision No. 24 and your contractor shall provide proof of insurance.
Permittee’s Contractor is responsible for the actual cost of inspection, which may be more or less than the deposit. Permittee’s Contractor will also be responsible for the actual cost of mark-out by Caltrans personnel. A bill or refund shall be sent upon satisfactory completion of the work. Payment of any bill is a condition of the permit.
The State of California, Department of Transportation, makes no assurance or expressed warranty that the plans are complete or that the planned construction fits field conditions. Should additional work or modifications of the work be required in order to meet established Department Standards or in order to fit field conditions, the work shall be performed by Permittee as directed by the State’s Inspector at no cost to the State.
All work shall be coordinated with the State highway contractor's operations and under no circumstances shall the work granted herein interfere. All standards of construction shall be identical to similar work performed under adjacent highway contract. SAN DIEGO COUNTY REGIONAL AIRPORT AUTHORITY 11-19-NMC-0589 DECEMBER 12,2019 PAGE THREE
A pre-construction meeting with the State’s Inspector, Electrical Maintenance Supervisor and Signal Operations Group is required prior to start of any work under this permit. Failure to do so may result in permit cancellation and resubmittal may be required.
Traffic control when permitted or directed by the State's Inspector, shall consist of closing traffic lanes and shoulders in accordance with attached Caltrans 2018 Standard Plan T9, Til, and the attached TRAFFIC CONTROL PLANS, Part 6 “Temporary Traffic Control” of the California Manual on Uniform Traffic Control Devices (California MUTCD) 2014 Revision 4 edition, Section 12 “Temporary Traffic Control” of Caltrans 2018 Standard Specifications, and these Special Provisions.
If any component in the traffic control system is displaced, or ceases to operate or function as specified, from any cause, during the progress of the work, the Permittee shall immediately repair said component to its original condition or replace said component and shall restore the component to its original location.
The Permittee must provide a minimum of one (1) Portable Changeable Message Sign (PCMS) for each direction of traffic. Additional PCMS(s) must be provided if required by the State’s Inspector. PCMS(s) must be place at locations directed by the State’s Inspector and moved or relocated as needed. Each PCMS must comply with the provisions in Section 12-3.32 of the Standard Specifications.
Message to be displayed on the PCMS(s) must be coordinated with the State’s Inspector.
When existing pedestrian facilities are disrupted, closed, or relocated in a Temporary Traffic Control zone, the temporary facilities shall be detectable and include accessibility features consistent with the features present in the existing pedestrian facility as determined by the State’s Inspector. Where pedestrians with visual disabilities normally use the closed sidewalk, a barrier that is detectable by a person with a visual disability traveling with the aid of a long cane shall be placed across the full width of the closed sidewalk.
All work shall be performed in accordance with the current Department of Transportation Standard Specifications and the Department of Transportation Encroachment Permit Underground Utility Special Provisions dated April, 2018.
All open trenches within the improved area shall be backfilled, compacted and temporary repairs made to the surfacing before leaving the job site at the end of the working day. In lieu of temporary repairs, steel plate bridging may be allowed if approved by the State's Inspector prior to the start of work. Permanent paving shall be placed within five working days after completion of the above work. Permanent backfill and paving shall conform to the attached ENCROACHMENT PERMIT TRENCH DETAIL dated November 2019 and the attached BACKFILL REQUIREMENTS. SAN DIEGO COUNTY REGIONAL AIRPORT AUTHORITY 11-19-NMC-0589 DECEMBER 12, 2019 PAGE FOUR
When steel plate bridging is used, the attached Steel Plate Bridging Utility Special Provisions dated April, 2018 will apply in addition to the attached General Provisions.
The Permittee shall retain a Civil Engineer, licensed to practice in California, who shall upon completion of the placement or regrading of materials requiring compaction, furnish to the State’s Inspector, a report certifying that the compaction work has been accomplished in accordance with Caltrans Standard Specifications and Standard Plans. Compaction testing, in accordance with Caltrans testing procedures and policies, shall be performed by a certified testing laboratory. Copies of the test shall accompany the engineer's report.
Your attention is directed to Standard Specifications Section 5-1.36 “Property and Facility Preservation” and Business and Professions Code, Section 8771. Permittee shall physically inspect the work site and locate survey monuments prior to work commencement. Monuments that might be disturbed shall be referenced or reset in accordance with Business and Professions Code.
If feasible, monuments should not be set within the traveled way. All monuments that must be set or perpetuated in paved surfaces, shall be constructed in accordance with Caltrans Standard Specification Section 78-2, "Survey Monuments" and Standard Plan A74, Type D, or equal with prior approval of the District Survey Engineer.
Copies of Corner Records or Record of Surveys recorded in compliance with the Business and Professions Code shall be forwarded to the District Surveys Engineer.
Permittee shall implement and maintain the attached WPCP, dated as approved July 12, 2019, and as directed and approved by the State’s Inspector.
Sidewalk shall be sawcut to an existing expansion joint or scoreline. New concrete shall match existing concrete color, texture and score pattern.
Pavement shall be sawcut a minimum of 0.2 foot deep prior to paving.
Curbs and gutters shall be installed over 6 inches of Class 2 Aggregate Base. Sidewalks shall be placed over 4 inches of Class 3 Aggregate Subbase.
No dropoff adjacent to the edges of the existing pavement will be permitted during nonworking hours or days. Prior to leaving the job site at the end of the working day, any dropoff adjacent to the edge of pavement shall be temporarily backfilled and compacted for a minimum width of 4 foot. Temporary backfill shall be level with the pavement at its edge and shall have a maximum slope of 4:1 away from the pavement. Temporary backfill material shall be base material. SAN DIEGO COUNTY REGIONAL AIRPORT AUTHORITY 1 1-19-NMC-0589 DECEMBER 12,2019 PAGE FIVE
Traffic striping, pavement markings and signs shall be furnished and placed by the Permittee and the cost shall be borne by the Permittee. Where new asphalt concrete has been placed, painted striping and pavement markings shall be installed within 24-hours. Where shown on the plans, after thirty (30) days curing time, thermoplastic materials shall be applied in compliance with Section 84 of the Standard Specifications.
Upon completion of the work provided herein, the Permittee shall complete the “Post Construction Certification” section of the attached Certification of Compliance with Americans with Disabilities Act (ADA) [TR-0405] and submit it to the District 1 1 Caltrans Permit Office. Encroachment Permit projects that create, alter, or affect pedestrian facilities are required to be designed and constructed in accordance with the policies and standards in Design Information Bulletin 82-06 (DIB 82-06).
Upon completion of the work provided herein, the Permittee shall submit one vellum or paper set of As-Built plans and one electronic thumb drive to the District 1 1 Caltrans Permit Office showing the actual location of the facility to the nearest 0.1 foot horizontally and vertically. Mylar or paper sepia plans are not acceptable.
As-Built plans shall be signed by a Land Surveyor or Civil Engineer licensed to practice in the State of California.
The provisions in this section will not relieve the Permittee from his responsibility to provide additional devices or take such measures as may be necessary for the safety of traffic and the public to comply with the provisions in Section 7-1.04, “Public Safety” of the Standard Specifications.
Upon completion of the work, the attached card shall be completed and returned. SPECIAL PROVISIONS
DIVISION 2 – EXISTING CONDITIONS
SECTION 02 41 00 - DEMOLITION
PART 1 – GENERAL
1.1 REFERENCES
A. The following is a partial list of standards applicable to this Section:
1. American Society of Safety Professionals (ASSP): A10.6, (2006) Safety & Health Program Requirements for Demolition Operations - American National Standard for Construction and Demolition Operations.
2. Occupational Safety and Health Administration (OSHA), U.S. Code of Federal Regulations (CFR) Title 29 Part 1926—Occupational Safety and Health Regulations for Construction.
3. Environmental Protection Agency (EPA), U.S. Code of Federal Regulations (CFR), Title 40:
a. Part 61—National Emission Standards for Hazardous Air Pollutants. b. Part 82—Protection of Stratospheric Ozone. c. Part 273—Standards for Universal Waste Management.
1.2 DEFINITIONS A. Demolition: Dismantling, razing, destroying, or wrecking of any fixed building or structure or any part thereof.
B. Modify: Provide all necessary material and labor to modify an existing item to the condition indicated or specified.
C. Relocate/Reuse: Remove, protect, clean and reinstall equipment, including electrical, instrumentation, and all ancillary components required to make the equipment fully functional, to the new location identified on the Drawings.
D. Salvage/Salvageable: Remove and deliver, to the location(s) identified by the Representative, the equipment, building materials, or other items so identified to be saved from destruction, damage, or waste; such property to remain that of the property Owner. Unless otherwise specified or directed by the
104205 02 41 00 - 1 Representative, title to items identified for demolition shall revert to Contractor.
1.3 REGULATORY AND SAFETY REQUIREMENTS
A. Comply with federal, state, and local hauling and disposal regulations.
B. Contractor shall contact utility locating service, 811, and have utilities marked prior to performing any demolition work.
C. SDMTS and NCTD are not members of the “One-call” Utility mark-out Services. Contact both SDMTS and NCTD for mark-out of their underground facilities in accordance their right of entry permit requirements and Section 01 89 30, Railroad Relations.
PART 2 - PRODUCTS (NOT USED)
PART 3 – EXECUTION
3.1 EXISTING FACILITIES TO BE DEMOLISHED, ABANDONED OR SALVAGED
A. General Requirements –
1. Do not begin demolition until all applicable permits are in hand including a right of way permit from the City of San Diego including approved traffic control plans, right of entry permits from Caltrans, SDMTS and NCTD and railroad flaggers are scheduled and present as required by the permits from both rail agencies.
2. Remove rubbish and debris from the project site daily; do not allow accumulations on or around public streets, sidewalks or on the railroad right-of-way or in areas that obstruct or impact the safe movement of pedestrians, roadway and rail traffic.
3. The Work includes demolition and reuse and/or modification of existing improvements including traffic signal and railroad signal devices and related infrastructure. Protect and salvage items identified for reuse or relocation. Store materials that cannot be removed daily in areas identified by the Representative.
B. Remove PCC pavement, asphalt pavement, curb and gutter, sidewalk, median hardscape, median curb and other roadway materials as shown on the drawings and required to construct the improvements.
104205 02 41 00 - 2 C. Remove and relocate electric pull boxes, protecting and coiling conductors and preserving conduit as required to complete the work as shown on the Drawings.
D. Remove existing railroad signal cantilever poles and concrete foundations as shown on the Drawings.
E. Remove and replace in-kind concrete sidewalk panel as required to construct conduit, pullboxes, foundations, railings and other improvements as shown on the Drawings.
F. Remove (and relocate as applicable) existing sign posts and signs as shown on the Drawings.
G. Remove pavement striping and delineation as required to establish interim and final pavement delineation, pavement words, arrows, symbols, stop bars and other markings.
H. Remove and salvage existing traffic signals where shown on the Drawings.
3.2 PROTECTION
A. Dust and Debris Control:
1. Prevent the spread of dust and debris to adjacent portions of the building and avoid the creation of a nuisance or hazard in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution.
2. Sweep pavements as often as necessary to control the spread of debris that may result in foreign object damage potential to vehicular traffic.
B. All open trenches in areas that are opened to public traffic during non-working hours shall be steel plated (HS-20 loading).
C. Traffic Control Signs: Where pedestrian and driver safety is endangered in the area of removal Work, use traffic barricades with flashing lights.
D. Existing Improvements to Remain in Place:
1. Survey the site and examine the Drawings and Special Provisions to determine the extent of the Work before beginning any demolition or renovation.
104205 02 41 00 - 3 2. Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the property Owner; any Contractor-damaged items shall be repaired or replaced as directed by the Representative. Coordinate the work of this section with all other work indicated. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Increase structural supports or add new supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this Contract.
E. Utility Service:
1. Prior to start of work, confirm positively with railroads which electric services to their facilities may be temporarily shut down and for how long. Unless otherwise shown, maintain existing utilities in service and protect against damage during demolition operations.
F. Safe Access
1. Provide temporary barricades and other forms of protection to protect agency and other involved personnel and the general public from injury due to demolition Work.
2. Provide protective measures as required to provide free and safe passage of agency and other involved personnel and the general public along the public right-of-way and access to adjacent properties.
3.3 TITLE TO MATERIALS
A. Items designated to be removed shall become the property of Contractor unless: otherwise noted in this Special Provision; called out on the Drawings to be salvaged and/or reused; or as otherwise directed by the Representative.
3.4 DISPOSITION OF MATERIAL
A. The final disposition of all demolition material that becomes the property of the Contractor is the responsibility of the Contractor. The final disposition chosen by the Contractor shall comply with all applicable Federal, state, and local laws and ordinances. The Airport Authority strongly encourages the Contractor to utilize a final disposition that complies with the City of San Diego’s Construction and Demolition Debris Diversion ordinance.
3.5 RELOCATION
A. Existing traffic signals shall be salvaged or relocated as called for on the Drawings and per City of San Diego Standard Drawings.
104205 02 41 00 - 4 PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for DEMOLITION (of roadway traffic signal related items) shall be considered as included in the contract lump sum price paid for TRAFFIC SIGNALS and no additional compensation will be allowed therefor.
B. Full compensation for DEMOLITION (of railroad crossing and signal modifications related items) shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor.
C. Full compensation for DEMOLITION (of all items not related to either roadway traffic signals or railroad crossing and signal modifications) shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 02 41 00
104205 02 41 00 - 5 SPECIAL PROVISIONS
DIVISION 5 - METALS
SECTION 05 50 00 - METAL FABRICATIONS
PART 1 - GENERAL
1.1 SUMMARY
A. This Section specifies metal fabrications, including metal railings, metal swing gates and posts.
1.2 SUBMITTALS
A. Shop Drawings: Contractor shall submit shop drawings showing details and dimensions of all metal hand railings, swing gates and posts.
B. Product Data:
1. All metal procurement shall include a material test report (MTR) for metal type and grade verification.
2. All stainless steel shall be Type 316 per ASTM A276.
3. All metal types shall be schedule 40.
C. Field quality-control test and inspection reports.
1.3 DELIVERY, STORAGE, AND HANDLING
A. Deliver, store, and handle metal fabrication to prevent bending and damage.
PART 2 – PRODUCTS (Not Used)
PART 3 - EXECUTION
3.1 METAL RAILINGS
A. Railing shall be installed using tamper resistant component fittings and shall not be welded. Fittings shall be of type that no pipe end will be left
104205 05 50 00 - 1 open. Rail between posts shall be continuous. The railing shall be erected on anchor bolts to the lines shown on the plans.
B. Where different metals are used together measures shall be taken to prevent corrosive effects.
3.2 METAL SWING GATES AND POSTS
A. Swing gates shown on the Drawings shall be constructed of metal as specified in this section. Contractor shall submit shop drawings showing details and dimensions of swing gates.
B. Design and Fabrication:
1. Swing gates and posts shall be shop fabricated to the dimensions shown on the Drawings.
2. The swing gate system shall be constructed to resist a concentrated load of 300 lbs in any direction at any point; and to resist a concentrated horizontal load of 500 lbs at the center of the top bar of the gate in the direction of closing. Gate hinges shall be a gravity actuated system meeting ADA requirements for maximum allowable opening force; and shall return securely to the closed position at all times when not in use. Components and installation are to follow current ADA and ICC/ANSI A117.1 guidelines. All miters and welds shall be ground smooth. Bends shall be made in suitable jigs; and the pipe shall not be crushed in the bending process. Gate shall be fabricated such that no pipe ends are left open. All posts shall be capped with a non-removable fitting or welded plate cap. All fasteners and hardware shall be tamper resistant.
3. The Contractor shall be responsible for the design of the gate system, including footings and anchorage system. Material thicknesses and tubing sizes shown on the Drawings or specified elsewhere in these Special Provisions are minimum allowable dimensions, the Contractor shall be responsible for design of a swing gate system of adequate dimensions and thicknesses to meet design and performance requirements specified herein.
4. The Contractor shall submit calculations, and product data indicating component details, materials, connection and joining methods, and the relationship to adjoining work.
5. If pre-fabricated the Contractor shall submit manufacturer’s product data sheets and installation instructions.
104205 05 50 00 - 2 6. The swing gate system shall be manufactured by a metal fabricator with at least 5 years of experience in custom metal railing fabrication and welding.
7. Where differing metals are used together measures shall be taken to prevent corrosive effects.
PART 4 PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for METAL FABRICATION shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 05 50 00
104205 05 50 00 - 3 SPECIAL PROVISIONS
DIVISION 7 - THERMAL AND MOISTURE PROTECTION
SECTION 07 92 00 - JOINT SEALANTS
PART 1 - GENERAL
1.1 SUMMARY
A. This Section includes joint sealants for the following applications, including those specified by reference to this Section:
1. Exterior joints in vertical surfaces and horizontal non-traffic surfaces. 2. Exterior joints in horizontal traffic surfaces.
1.2 PERFORMANCE REQUIREMENTS
A. Provide elastomeric joint sealants that establish and maintain watertight and airtight continuous joint seals without staining or deteriorating joint substrates.
1.3 SUBMITTALS
A. Product Data: For each joint-sealant product indicated.
B. Samples: For each type and color of joint sealant required, provide samples with joint sealants in 1/2-inch-wide joints formed between two 6- inch- long strips of material matching the appearance of exposed surfaces adjacent to joint sealants.
C. Compatibility and adhesion test reports.
D. Product test reports.
PART 2 - PRODUCTS
2.1 MATERIALS, GENERAL
A. Compatibility: Provide joint sealants, backings, and other related materials that are compatible with one another and with joint substrates under
104205 07 92 00 - 1 conditions of service and application, as demonstrated by sealant manufacturer, based on testing and field experience.
B. Colors of Exposed Joint Sealants: As selected by the Representative from manufacturer's full range.
2.2 ELASTOMERIC JOINT SEALANTS
A. Elastomeric Sealants: Comply with ASTM C 920 and other requirements indicated for each liquid-applied chemically curing sealant specified, including those referencing ASTM C 920 classifications for type, grade, class, and uses related to exposure and joint substrates.
B. Multicomponent Non-sag Urethane Sealant, ES-1:
1. Available Products: a. Schnee-Morehead, Inc.; Permathane SM 7200. b. Sika Corporation, Inc.; Sikaflex - 2c NS TG. c. Sonneborn, Division of ChemRex Inc.; NP 2. d. Tremco; Vulkem 227. e. Tremco; Vulkem 322 DS. f. Or equal. 2. Type and Grade: M (multicomponent) and NS (nonsag). 3. Class: 25. 4. Uses Related to Exposure: T (traffic) and NT (nontraffic).
C. Single-Component Mildew-Resistant Neutral-Curing Silicone Sealant, ES-2: 1. Available Products: a. Pecora Corporation; 898. b. Tremco; Tremsil 600 White. c. Or equal. 2. Type and Grade: S (single component) and NS (non-sag). 3. Class: 25. 4. Use Related to Exposure: NT (non-traffic). 5. Uses Related to Joint Substrates: G, A, and, as applicable to joint substrates indicated, O.
2.3 LATEX JOINT SEALANTS
A. Latex Sealant: Comply with ASTM C 834, Type O P, Grade NF.
B. Available Products:
104205 07 92 00 - 2 1. Pecora Corporation; AC-20+. 2. Schnee-Morehead, Inc.; SM 8200. 3. Sonneborn, Division of ChemRex Inc.; Sonolac. 4. Tremco; Tremflex 834. 5. Or equal.
2.4 JOINT-SEALANT BACKING
A. General: Provide sealant backings of material and type that are non- staining; are compatible with joint substrates, sealants, primers, and other joint fillers; and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing.
B. Cylindrical Sealant Backings: ASTM C 1330, Type C (closed-cell material with a surface skin), O (open-cell material), B (bi-cellular material with a surface skin), or any of the preceding types, as approved in writing by joint-sealant manufacturer for joint application indicated, and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance:
C. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of joint where such adhesion would result in sealant failure. Provide self-adhesive tape where applicable.
2.5 MISCELLANEOUS MATERIALS
A. Primer: Material recommended by joint-sealant manufacturer where required for adhesion of sealant to joint substrates indicated, as determined from preconstruction joint-sealant-substrate tests and field tests.
B. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials, free of oily residues or other substances capable of staining or harming joint substrates and adjacent nonporous surfaces in any way, and formulated to promote optimum adhesion of sealants to joint substrates.
104205 07 92 00 - 3 PART 3 - EXECUTION
3.1 PREPARATION
A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants.
1. Remove all foreign material from joint substrates that could interfere with adhesion of joint sealant. a. Clean porous joint substrate surfaces by brushing, grinding, blast cleaning, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealants. Remove loose particles remaining after cleaning operations above by vacuuming or blowing out joints with oil-free compressed air.
2. Remove laitance and form-release agents from concrete.
a. Clean nonporous surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants.
B. Joint Priming: Prime joint substrates, where recommended in writing by joint sealant manufacturer based on preconstruction joint-sealant- substrate tests or prior experience. Apply primer to comply with joint- sealant manufacturer's written instructions. Confine primers to areas of joint-sealant bond; do not allow spillage or migration onto adjoining surfaces.
3.2 INSTALLATION
A. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated.
B. Install sealant backings of type indicated to support sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability.
1. Do not leave gaps between ends of sealant backings. 2. Do not stretch, twist, puncture, or tear sealant backings.
104205 07 92 00 - 4 3. Remove absorbent sealant backings that have become wet before sealant application and replace them with dry materials.
C. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of joints.
D. Install sealants using proven techniques that comply with the following and at the same time backings are installed: 1. Place sealants so they directly contact and fully wet joint substrates. 2. Completely fill recesses in each joint configuration. 3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability.
E. Tooling of Non-sag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants according to requirements specified below to form smooth, uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint. 1. Remove excess sealant from surfaces adjacent to joints. 2. Use tooling agents that are approved in writing by sealant manufacturer and that do not discolor sealants or adjacent surfaces. 3. Provide concave joint configuration per Figure 5A in ASTM C 1193, unless otherwise indicated.
F. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur.
PART 4 PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for JOINT SEALANTS shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 07 92 00
104205 07 92 00 - 5 SPECIAL PROVISIONS
DIVISION 31 - EARTHWORK
SECTION 31 20 00 – EARTH MOVING
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Preparing subgrades for sidewalks, curb, gutter, medians, and pavements. 2. Excavating and backfilling for structures. 3. Excavating and backfilling trenches for utilities and pits for buried utility structures. 4. Adjusting existing utility covers, inlets and manholes to grade.
1.2 DEFINITIONS
A. Backfill: Soil material used to fill an excavation.
1. Initial Backfill: Backfill placed beside and over pipe in a trench, including haunches to support sides of pipe. 2. Final Backfill: Backfill placed over initial backfill to fill a trench.
B. Bedding Course: Aggregate layer placed over the excavated subgrade in a trench before laying pipe.
C. Borrow Soil: Satisfactory soil imported from off-site for use as fill or backfill.
D. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated.
E. Fill: Soil materials used to raise existing grades.
F. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.
G. Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below crushed aggregate base course, drainage fill, drainage course, or topsoil materials.
104205 31 20 00 - 1 H. Utilities: On-site underground pipes, conduits, ducts, and cables, as well as underground services within buildings.
1.3 SUBMITTALS
A. Qualification Data: For qualified testing agency.
B. Material Test Reports: For each borrow soil material proposed for fill and backfill as follows:
1. Classification according to ASTM D 2487. 2. Laboratory compaction curve according to ASTM D 1557.
1.4 QUALITY CONTROL STANDARDS
A. Materials testing of materials used in construction and for which ownership and future maintenance will be transferred to the City, the Railroad or others shall be performed in accordance with the future owning agencies’ requirements.
1.5 PROJECT CONDITIONS
A. Traffic:
1. Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during earth moving operations. 2. Perform work in accordance with the approved permit for traffic control, Caltrans Encroachment and Railroad Right of Entry during each phase of the work.
B. Do not proceed with work on adjoining property without first obtaining permission of adjacent property owner and with concurrence of the Representative.
C. Utility Locator Service: Notify local “811” before beginning earth moving operations. Contact Railroad for mark-out of railroad owned facilities in Railroad Right-of-way.
D. Do not commence earth moving operations until the temporary erosion- and sediment control measures shown on the Drawings are in-place and have been accepted by the Representative.
E. Contractor shall follow the requirements of the various permits with respect to prohibited activities.
104205 31 20 00 - 2 PART 2 - PRODUCTS
2.1 SOIL MATERIALS
A. General: Provide borrow soil materials when sufficient satisfactory soil materials are not available from excavations.
B. Satisfactory Soils: Soil Classification Groups GW, GP, GM, SW, SP, and SM according to ASTM D 2487, or a combination of these groups; free of rock or gravel larger than 6 inches in any dimension, debris, waste, frozen materials, vegetation, and other deleterious matter.
C. Unsatisfactory Soils: Soil Classification Groups GC, SC, CL, ML, OL, CH, MH, OH, and PT according to ASTM D 2487, or a combination of these groups.
1. Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction.
D. Select Borrow: Material for select borrow shall consist of granular material, either naturally occurring or processed, and shall meet the following requirements for grading and quality:
Sieve Size Percent Passing (by weight) 6”square1 100 3”square 75-100 U.S. No 40 50 max. U.S. No 200 10.0 max. Sand Equivalent 30 min.
1100 percent shall pass 4-inch square sieve and 75 to 100 percent shall pass 2-inch square sieve when select borrow is used in the top 2-feet of embankments.
PART 3 - EXECUTION
3.1 PREPARATION
A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earth moving operations.
B. Protect and maintain temporary erosion and sediment control at all times during earth moving operations.
104205 31 20 00 - 3 3.2 EXCAVATION, GENERAL
A. Excavate to subgrade elevations. Excavate pavements and obstructions visible on surface or underground. Excavate utilities, and other items in conflict with proposed improvements or indicated to be removed; together with soil, boulders, and other unsuitable materials.
3.3 EXCAVATION FOR STRUCTURES
A. Excavate as required to construct structures to indicated elevations and dimensions. If applicable, extend excavations a sufficient distance from structures for placing and removing concrete formwork, for installing services and other construction, and for inspections.
1. Excavations for Footings and Foundations: Do not disturb bottom of excavation. Excavate by hand to final grade just before placing concrete reinforcement. Trim bottoms to required lines and grades to leave solid base to receive other work. 2. Excavation for Mechanical or Electrical Utility Structures: Excavate to elevations and dimensions indicated or required within a tolerance of plus or minus 1 inch. Do not disturb bottom of excavations intended as bearing surfaces.
3.4 EXCAVATION FOR UTILITY TRENCHES
A. Excavate trenches to uniform widths to provide the following clearance on each side of pipe or conduit. Excavate trench walls vertically from trench bottom to 30 inches higher than top of pipe or conduit unless otherwise indicated.
1. Clearance: 5-12 inches each side of pipe or conduit.
B. Trench Bottoms: Excavate trenches 5 inches deeper than bottom of pipe and conduit elevations to allow for bedding course.
C. Trench under/through railroad right-of-way in accordance with Railroad requirements.
3.5 UNAUTHORIZED EXCAVATION
A. Fill unauthorized excavation under foundations or footings by extending bottom elevation of concrete foundation or footing to excavation bottom, without altering top elevation. Lean concrete fill, with 28-day compressive strength of 2500 psi, may be used when accepted by Representative.
104205 31 20 00 - 4 B. Fill unauthorized excavations under other construction, pipe, or conduit as directed by Representative.
3.6 STORAGE OF SOIL MATERIALS
A. Stockpile, when allowed by the Representative, borrow soil materials and excavated satisfactory soil materials without intermixing. Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust.
B. Stockpile soil materials away from edge of excavations and protect in accordance with requirements of Section 31 25 00 Temporary Erosion Control.
3.7 BACKFILL
A. Place and compact backfill in excavations promptly, but not before completing the following:
1. Construction below finish grade including, where applicable, sub-drainage. 2. Testing and inspecting underground utilities. 3. Removing concrete formwork. 4. Removing trash and debris. 5. Removing temporary shoring and bracing, and sheeting.
B. Place backfill on subgrades free of mud.
3.8 SOIL FILL AND EMBANKMENT CONSTRUCTION
A. Plow, scarify, bench, or break up sloped surfaces steeper than 1 vertical to 4 horizontal so fill material will bond with existing material.
B. Place and compact fill material in layers to required subgrade as follows:
1. Under grass and planted areas, use satisfactory soil material. 2. Under walks and pavements, use satisfactory soil material or imported select borrow. 3. Under footings and foundations, use engineered fill.
C. Place soil fill on subgrades free of mud.
104205 31 20 00 - 5 3.9 SOIL MOISTURE CONTROL
A. Uniformly moisten or aerate subgrade and each subsequent fill or backfill soil layer before compaction to within 2 percent of optimum moisture content.
1. Do not place backfill or fill soil material on surfaces that are muddy. 2. Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight.
3.10 COMPACTION OF SOIL BACKFILLS AND FILLS
A. Place backfill and fill soil materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment, and not more than 4 inches in loose depth for material compacted by hand- operated tampers.
B. Place backfill and fill soil materials evenly on all sides of structures to required elevations, and uniformly along the full length of each structure.
C. Compact soil materials to not less than the following percentages of maximum dry unit weight according to ASTM D 1557:
1. Under structures, slabs-on-grade and pavements, scarify and recompact top 12 inches of existing subgrade and each layer of backfill or fill soil material at 95 percent. 2. Under turf or unpaved areas, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill soil material at 85 percent. 3. For utility trenches, compact each layer of backfill soil material at 95 percent.
3.11 GRADING
A. General: Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements and grade to cross sections, lines, and elevations indicated.
1. Provide a smooth transition between adjacent existing grades and new grades. 2. Cut out soft spots, fill low spots, and trim high spots to comply with required surface tolerances.
104205 31 20 00 - 6 B. Site Rough Grading: Slope grades to direct water away from buildings and to prevent ponding. Finish subgrades to required elevations within the following tolerances:
1. Turf or Unpaved Areas: Plus or minus 1-inch. 2. Walks: Plus or minus 1-inch 3. Pavements: Plus or minus ½-inch
3.12 FIELD QUALITY CONTROL
A. Quality Control Testing and Inspections: Contractor will engage a qualified special inspector to perform the following special inspections:
1. Determine prior to placement of fill that site has been prepared in compliance with requirements. 2. Determine that fill material and maximum lift thickness comply with requirements. 3. Determine, at the required frequency, that in-place density of compacted fill complies with requirements.
B. Testing Agency: Contractor will engage a qualified geotechnical engineering testing agency to perform tests and inspections.
C. Allow testing agency to inspect and test subgrades and each fill or backfill layer. Proceed with subsequent earth moving only after test results for previously completed work comply with requirements.
D. Testing agency will test compaction of soils in place according to ASTM D 1556, ASTM D 2167, ASTM D 2922, and ASTM D 2937, or California Test Method No. 216 as applicable. Tests will be performed at the following locations and frequencies:
1. Paved Areas: At subgrade and at each compacted fill and backfill layer, at least one test for every 2000 sq. ft. or less of paved area, but in no case fewer than three tests. 2. Foundations or Footings Backfill: At each compacted backfill layer for every footing. 3. Trench Backfill: At each compacted backfill layer, at least one test for every 150 feet or less of trench length, but no fewer than two tests.
E. When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil materials to depth required; recompact and retest until specified compaction is obtained.
104205 31 20 00 - 7 3.13 PROTECTION
A. Protecting Graded Areas: Protect newly graded areas from traffic, and erosion. Keep free of trash and debris.
B. Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions.
1. Scarify or remove and replace disturbed soil material to depth as directed by Representative; reshape and recompact.
3.14 DISPOSAL OF SURPLUS AND WASTE MATERIALS
A. Remove, transport, and legally dispose of surplus satisfactory soil, unsatisfactory soil and waste materials, including trash and other debris generated by the project.
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for EARTH MOVING shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 31 20 00
104205 31 20 00 - 8 SPECIAL PROVISIONS
DIVISION 31 – EARTHWORK
SECTION 31 23 23.15 - TRENCH BACKFILL
PART 1 - GENERAL
1.1 REFERENCES
A. The following is a list of standards applicable to this section:
A. American Public Works Association (APWA): Uniform Color Code for Temporary Marking of Underground Utility Locations.
B. ASTM International (ASTM):
a. C136, Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates. b. C150, Standard Specification for Portland Cement. c. D1557, Standard Test Method for Laboratory Compaction Characteristics of Soil using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)). d. D4253, Standard Test Methods for Maximum Index Density and Unit Weight of Soils Using a Vibratory Table. e. D4254, Standard Test Methods for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density. f. D4318, Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.
C. National Electrical Manufacturers Association (NEMA): Z535.1, Safety Color Code.
D. City of San Diego Standard Drawings, 2018 (or latest edition).
1.2 DEFINITIONS
A. Base Rock: Granular material upon which manhole bases and other structures are placed.
B. Bedding Material: Granular material upon which pipes, conduits, cables, or duct banks are placed.
C. Imported Material: Material obtained by Contractor from source(s) offsite.
104205 31 23 23.15 - 1 D. Lift: Loose (uncompacted) layer of material.
E. Pipe Zone: Backfill zone that includes full trench width and extends from prepared trench bottom to an upper limit above top outside surface of pipe, conduit, cable or duct bank.
F. Prepared Trench Bottom: Graded trench bottom after excavation and installation of stabilization material, if required, but before installation of bedding material.
G. Relative Compaction: The ratio, in percent, of the as-compacted field dry density to the laboratory maximum dry density as determined by ASTM D1557. Corrections for oversize material may be applied to either as-compacted field dry density or maximum dry density, as determined by Representative.
H. Relative Density: As defined by ASTM D4253 and ASTM D4254.
I. Selected Backfill Material: Material available onsite that Representative determines to be suitable for a specific use.
J. Well-Graded: A mixture of particle sizes that has no specific concentration or lack thereof of one or more sizes producing a material type that, when compacted, produces a strong and relatively incompressible soil mass free from detrimental voids. Well-graded does not define any numerical value that must be placed on the coefficient of uniformity, coefficient of curvature, or other specific grain size distribution parameters.
1.3 SUBMITTALS
A. Shop Drawings and Product Data: Manufacturer’s cut sheets for underground utility warning tape.
B. Certified Gradation Analysis: Submit not less than 30 days prior to delivery for trench backfill materials or anticipated use of excavated materials, except for trench stabilization material that will be submitted prior to material delivery to Site.
C. Controlled Low Strength Material (if used): Certified mix design and test results. Include material types and weight per cubic yard for each component of mix.
PART 2 - PRODUCTS
2.1 MARKING TAPE
A. Detectable:
104205 31 23 23.15 - 2 1. Solid aluminum foil, visible on unprinted side, encased in protective high visibility, inert polyethylene plastic jacket. 2. Foil Thickness: Minimum 0.35 mils. 3. Laminate Thickness: Minimum 5 mils. 4. Width: 3 inches. 5. Identifying Lettering: Minimum 1-inch high, permanent black lettering imprinted continuously over entire length. 6. Joining Clips: Tin or nickel-coated furnished by tape manufacturer. 7. Manufacturers and Products:
a. Reef Industries; Terra Tape, Sentry Line Detectable. b. Mutual Industries; Detectable Tape. c. Presco; Detectable Tape. d. Or equal.
B. Color: In accordance with APWA Uniform Color Code for Temporary Marking of Underground Facilities.
Color* Facility Red Electric power lines, cables, conduit, and lightning cables Orange Communicating alarm or signal lines, cables, or conduit Yellow Gas, oil, steam, petroleum, or gaseous materials Green Sewers and drain lines Blue Potable water Purple Reclaimed water, irrigation, and slurry lines *As specified in NEMA Z535.1, Safety Color Code.
2.2 CLASS “A” BACKFILL MATERIAL
A. Unfrozen, friable, and no clay balls, roots, or other organic material.
B. Clean or gravelly sand with less than 5 percent passing No. 200 sieve, as determined in accordance with ASTM D1140, or gravel or crushed rock within maximum particle size and other requirements as follows unless otherwise specified.
1. Duct Banks: 3/4-inch maximum particle size. 2. PVC Irrigation System Piping and Ductile Iron Pipe with Polyethylene Wrap: 3/8-inch maximum particle size.
104205 31 23 23.15 - 3 3. Pipe Under 18-Inch Diameter: 3/4-inch maximum particle size, except 1/4 inch for stainless steel pipe, copper pipe, tubing, and plastic pipe under 3-inch diameter. 4. Pipe Greater than 18-Inch Diameter: 1-1/2-inch maximum particle size for ductile iron pipe, concrete pipe, welded steel pipe, and pretensioned or prestressed concrete cylinder pipe. 5. Perforated Pipe: Granular drain material. 6. Conduit and Direct-Buried Cable:
a. Sand, clean or clean to silty, less than 12 percent passing No. 200 sieve. b. Individual Particles: Free of sharp edges. c. Maximum Size Particle: Pass a No. 4 sieve. d. If more than 5 percent passes No. 200 sieve, the fraction that passes No. 40 sieve shall be nonplastic as determined in accordance with ASTM D4318.
2.3 EARTH BACKFILL
A. Soil, loam, or other excavated material suitable for use as backfill.
B. Free from roots or organic matter, refuse, boulders and material larger than 1/2 cubic foot, or other deleterious materials.
2.4 CONTROLLED LOW STRENGTH MATERIAL (CLSM)
A. Description:
1. This item shall consist of furnishing, transporting, and placing a controlled low-strength material (CLSM) as flowable backfill in trenches or at other locations shown on the Drawings or as directed by the Representative.
B. Materials:
1. Portland Cement: Portland cement shall conform to the requirements of ASTM C150 Type II or Type V. If for any reason, cement becomes partially set or contains lumps of caked cement, it shall be rejected. Cement salvaged from discarded or used bags shall not be used.
2. Fly Ash: Fly Ash shall conform to ASTM C 618, Class F.
3. Fine Aggregate (Sand): Fine aggregate shall conform to the requirements of ASTM C 33 except for aggregate gradation. Any aggregate gradation which produces performance characteristics of the CLSM specified herein will be accepted, except as follows.
Sieve Size Percent Passing by Weight
104205 31 23 23.15 - 4 3/4 inch 100 No. 200 0 - 12
4. Water: Water used in mixing shall be free of oil, salt, acid, alkali, sugar, vegetable matter, or other substances injurious to the finished product.
C. Mix Design:
1. Proportions: The contractor shall submit, to the Representative, a mix design including the proportions and source of materials, admixtures, and dry cubic yard batch weights. The mix shall contain a minimum of 50 pounds of cement and 250 pounds fly ash per cubic yard, with the remainder of the volume composed of sand, water, and admixtures.
a. Compressive Strength: CLSM shall be designed to achieve a 28-day compressive strength of 100 to 200 psi when tested in accordance with ASTM C 39. There should be no significant strength gain after 28 days. Test specimens shall be made in accordance with ASTM C 31 except that the samples will not be rodded or vibrated and shall be air cured in their molds for the duration of the cure period.
b. Consistency: Consistency of the fresh mixture shall be such that the mixture may be placed without segregation. A desired consistency may be approximated by filling an open-ended three-inch diameter cylinder, six inches high to the top, with the mixture and the cylinder immediately pulled straight up. The correct consistency of the mixture will produce an approximate eight-inch diameter circular-type spread without segregation. Adjustments of the proportions of materials should be made to achieve proper solid suspension and flowable characteristics, however the theoretical yield shall be maintained at one cubic yard for the given batch weights.
D. Construction Methods:
1. Placement:
a. Placement: CLSM may be placed by any reasonable means from a mixing unit into the space to be filled. Agitation is required during transportation and waiting time. Placement shall be performed in such a manner that conduit or duct bank are not displaced from their desired final position and intrusion of CLSM into undesirable areas is avoided. The material shall be brought up uniformly to the fill line shown on the plans or as directed to the Representative. Each placement of CLSM shall be as continuous an operation as possible. If CLSM is placed in more than one layer, the base
104205 31 23 23.15 - 5 layer shall be free of surface water and loose of foreign material prior to placement of the next layer.
b. Limitations of Placement: CLSM shall not be placed on frozen ground. Mixing and placing may begin when the air or ground temperature is at least 35 degrees F and rising. At the time of placement, CLSM shall have a temperature of at least 40 degrees F. Mixing and placement shall stop when the air temperature is 40 degrees F and falling or when the anticipated air or ground temperature will be 35 degrees F or less in the 24-hour period following proposed placement.
2. Curing and Protection:
a. Curing: The air in contact with the CLSM should be maintained at temperatures above freezing for a minimum of 72 hours. If the CLSM is subjected to temperatures below 32 degrees F, the material may be rejected by the Representative if damage to the material is observed.
b. Protection: The CLSM shall not be subject to loads and shall remain undisturbed by construction activities for a period of 48 hours or until a compressive strength of 15 psi is obtained. The Contractor shall be responsible for providing evidence to the Representative that the material has reached the desired strength. Acceptable evidence shall be based upon compressive tests made in accordance with paragraph 31 23 23.15-2.04C1a.
E. Material Acceptance:
1. Acceptance: Acceptance of CLSM delivered and placed as shown on the plans or as directed by the Representative shall be based upon the accepted mix design and batch tickets provided by the Contractor to confirm that the delivered material conforms to the mix design. The Contractor shall verify by additional testing, each 100 cubic yards of material used, or one day’s production, whichever is less. Verification shall include confirmation of material proportions and tests of compressive strength to confirm that the material meets the original mix design and the requirements of CLSM as defined in this Special Provision. Adjustments shall be made as necessary to the proportions and materials prior to further production.
2.5 SOURCE QUALITY CONTROL
A. Perform gradation analysis in accordance with ASTM C136 for:
1. Earth backfill, including specified class.
104205 31 23 23.15 - 6 2. Bedding and pipe zone material.
B. Certify Laboratory Performance of Mix Designs:
1. Controlled low strength material.
PART 3 - EXECUTION
3.1 TRENCH PREPARATION
A. Water Control:
1. Promptly remove and dispose of water entering trench as necessary to grade trench bottom and to compact backfill and install manholes, pipe, conduit, direct-buried cable, or duct bank. Do not place concrete, lay pipe, conduit, direct-buried cable, or duct bank in water. 2. Remove water in a manner that minimizes soil erosion from trench sides and bottom. 3. Provide continuous water control until trench backfill is complete.
B. Remove foreign material and backfill contaminated with foreign material that falls into trench.
3.2 TRENCH BOTTOM
A. Firm Subgrade: Grade with hand tools, remove loose and disturbed material, and trim off high areas and ridges left by excavating bucket teeth. Allow space for bedding material if shown or specified.
B. Soft Subgrade: If subgrade is encountered that may require removal to prevent pipe settlement, notify Representative. Representative will determine depth of over excavation and method of trench bottom stabilization, if any required.
3.3 BEDDING
A. Furnish imported bedding material where, in the opinion of Representative, excavated material is unsuitable for bedding or insufficient in quantity.
B. Place over the full width of the prepared trench bottom.
C. Hand grade and compact each lift to provide a firm, unyielding surface.
104205 31 23 23.15 - 7 D. Minimum Thickness: From 4 inches below pipe invert to 12 inches above pipe crown.
E. Check grade and correct irregularities in bedding material. Loosen top 1 inch to 2 inches of compacted bedding material with a rake or by other means to provide a cushion before laying each section of pipe, conduit, direct-buried cable, or duct bank.
F. Install to form continuous and uniform support except at bell holes, if applicable, or minor disturbances resulting from removal of lifting tackle.
G. Bell or Coupling Holes: Excavate in bedding at each joint to permit proper assembly and inspection of joint and to provide uniform bearing along barrel of pipe or conduit.
3.4 BACKFILL PIPE ZONE
A. Upper limit of pipe zone shall not be less than following:
1. Pipe:12 inches above top of pipe, unless shown otherwise. 2. Conduit: 3 inches, unless shown otherwise. 3. Direct-Buried Cable: 3 inches, unless shown otherwise. 4. Duct Bank: 3 inches, unless shown otherwise.
B. Restrain pipe, conduit, cables, and duct banks as necessary to prevent their movement during backfill operations.
C. Place material simultaneously in lifts on both sides of pipe and, if applicable, between pipes, conduit, cables, and duct banks installed in same trench.
1. Pipe 10-Inch and Smaller Diameter: First lift less than or equal to 1/2 pipe diameter.
2. Pipe Over 10-Inch Diameter: Maximum 6-inch lifts.
D. Thoroughly tamp each lift, including area under haunches, with handheld tamping bars supplemented by “walking in” and slicing material under haunches with a shovel to ensure that voids are completely filled before placing each succeeding lift.
E. After the full depth of the pipe zone material has been placed as specified, compact the material by a minimum of three passes with a vibratory plate compactor only over the area between the sides of the pipe and the trench walls.
F. Do not use power-driven impact compactors to compact pipe zone material.
104205 31 23 23.15 - 8 3.5 MARKING TAPE INSTALLATION
A. Continuously install marking tape along centerline of all buried piping, on top of last lift of pipe zone material. Coordinate with piping installation drawings.
1. Detectable Marking Tape: Install with nonmetallic piping and waterlines.
3.6 BACKFILL ABOVE PIPE ZONE
A. General:
1. Process excavated material to meet specified gradation requirements. 2. Adjust moisture content as necessary to obtain specified compaction. 3. Do not allow backfill to free fall into the trench or allow heavy, sharp pieces of material to be placed as backfill until after at least 2 feet of backfill has been provided over the top of pipe. 4. Do not use power driven impact type compactors for compaction until at least 4 feet of backfill is placed over top of pipe. 5. Backfill to grade with proper allowances for topsoil, crushed rock surfacing, and pavement thicknesses, wherever applicable. 6. Backfill around structures with same class backfill as specified for adjacent trench unless otherwise shown or specified.
B. Class A Backfill:
1. Place in lifts not exceeding thickness of 9 inches. 2. Pipe Zone and Middle Zone: Mechanically compact each lift to a minimum of 90 percent relative compaction prior to placing succeeding lifts. 3. Upper Zone (within 3 feet of the bottom of the base course in paved areas): Mechanically compact each lift to a minimum of 95 percent relative compaction prior to placing succeeding lifts.
3.7 MAINTENANCE OF TRENCH BACKFILL
A. After each section of trench is backfilled, maintain the surface of the backfilled trench even with the adjacent ground surface until final surface restoration is completed.
B. Asphaltic Pavement: Replace settled areas.
C. Other Areas: Add excavated material where applicable and keep the surface of the backfilled trench level with the adjacent ground surface.
104205 31 23 23.15 - 9 3.8 SETTLEMENT OF BACKFILL
A. Settlement of trench backfill, or of fill, or facilities constructed over trench backfill will be considered a result of defective compaction of trench backfill.
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for TRENCH BACKFILL shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 31 23 23.15
104205 31 23 23.15 - 10 DIVISION 31 - EARTHWORK
SECTION 31 25 00
TEMPORARY EROSION AND SEDIMENTATION CONTROL
PART 1 – GENERAL
1.1 SUMMARY
A. This section Includes:
1. The temporary control measures as shown on the Drawings or as otherwise ordered during the life of a contract to control water pollution, soil erosion, and siltation through the use of berms, dikes, dams, sediment basins, fiber mats, gravel, and other erosion control devices or methods, and as required by the approved Storm Water Pollution Prevention Plan (SWPPP).
1.2 REFERENCE STANDARDS
A. All references made within these technical provisions to the various standards shown in Section 1.2.B below shall be limited to construction materials, methods, and all work incidental to the item of work only.
B. The following is a list of standards which may be referenced in this Sections:
1. San Diego County Regional Airport Authority BMP Design Manual.
2. The California Stormwater Quality Association Handbook (CASQA).
1.3 SUBMITTALS
A. Prior to the start of construction, the Contractor shall submit schedules for accomplishment of temporary and permanent erosion control work, as are applicable for grading; construction; and paving. The Contractor shall also submit a proposed method of erosion and dust control on roads. Work shall not be started until the erosion control schedules and methods of operation for the applicable construction have been accepted.
1.4 QUALITY CONTROL
A. Standard: Provide materials and construction methods complying with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheets. All BMPs are to be installed per manufacturer's installation instructions.
104205 31 25 00 - 1 PART 2 – PRODUCTS
2.1 STORM DRAIN INLET PROTECTION
A. Storm Drain Inlet Protection and related materials shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet SE-10.
2.2 STABILIZED CONSTRUCTION ENTRANCE
A. Temporary stabilized construction entrances shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet TC-1.
2.3 SCHEDULING
A. Scheduling shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet EC-1.
2.4 ROAD SWEEPING
A. Road sweeping (or pavement sweeping) and vacuuming shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet SE-7.
2.5 WIND AND EROSION CONTROL
A. Wind and Erosion Control shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WE-1.
2.6 GRAVEL BAGS A. Gravel bag berms and related materials shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet SE-6.
2.7 TIRE WASH ENTRANCE/EXIT
A. The tire wash shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet TC-3.
2.8 FIBER ROLLS
104205 31 25 00 - 2 A. Fiber Rolls shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet SE-5.
2.9 VEHICLE AND EQUIPMENT MAINTENANCE
A. Vehicle and Equipment Maintenance shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet NS-10.
2.10 MATERIAL DELIVERY AND STORAGE
A. Material Waste and Storage shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-1.
2.11 SPILL PREVENTION AND CONTROL
A. Spill Prevention and Control shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-4.
2.12 SOLID WASTE MANAGEMENT
B. Solid Waste Management shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-5.
2.13 HAZARDOUS WASTE MANAGEMENT
A. Hazardous Waste Management shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-6.
2.14 CONTAMINATED SOIL MANAGEMENT A. Contaminated Soil management shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-7.
2.15 CONCRETE WASHOUT
A. Concrete washouts shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-8.
2.16 SANITARY/SEPTIC WASTE MANAGEMENT
104205 31 25 00 - 3 A. Sanitary/Septic Waste Management shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet WM-9.
2.17 SOIL BINDERS
A. Sanitary/Septic Waste Management shall be in accordance with Section 3 “Erosion and Sediment control BMPs” of the “California Stormwater Quality Association Handbook” Fact Sheet EC-5.
PART 3 – EXECUTION
3.1 CONSTRUCTION DETAILS
A. Temporary erosion and pollution control measures will be used to correct conditions that develop during construction.
B. In the event that temporary erosion and pollution control measures are required due to the Contactor’s negligence, carelessness, or failure to complete permanent improvements as a part of the work as scheduled or as directed, such work shall be performed at the Contractor’s expense.
C. The erosion control features installed by the Contractor shall be acceptably maintained at the Contactor’s expense during the construction period.
3.2 STORM WATER MANAGEMENT A. The Contractor shall refer to and provide storm water management in accordance with Special Conditions Section 1D-34.
3.3 CONTRACTOR QUALITY CONTROL
A. The Contractor shall be responsible for developing and implementing a Contractor Quality Control Program including but not limited to inspection and testing to assure compliance with the requirements of this section and in accordance with Special Conditions Section 1D-21.
PART 4 – MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
104205 31 25 00 - 4 A. The contract Lump Sum price paid for TEMPORARY EROSION AND SEDIMENT CONTROL shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all work involved in TEMPORARY EROSION AND SEDIMENT CONTROL and no additional compensation will be allowed therefor.
END OF SECTION 31 25 00
104205 31 25 00 - 5 SPECIAL PROVISIONS
DIVISION 32 – EXTERIOR IMPROVEMENTS
SECTION 32 11 33 – CEMENT TREATED BASE COURSES
PART 1 – GENERAL
1.1 SUMMARY
A. This section shall consist of constructing a mixture of aggregate base materials, cement, and water in accordance with this specification, and in conformity with the lines, grades, thickness, and typical cross sections shown on the plans or specified herein. Cement-treated base courses shall be constructed in a series of parallel lanes such that longitudinal and transverse joints are minimized.
B. Cement-treated base shall be required in accordance with City of San Diego Standard Drawing No SDG-113 Pavement Design Standards Schedule “J.” based on the classification of the street for Sassafras Street as shown on the drawings. The Contractor is responsible for determining the R-value of the subgrade as tested during construction and selecting the appropriate pavement section.
1.2 REFERENCE STANDARDS
A. American Society for Testing and Materials.
1. D75 Standard Practice for Sampling Aggregates. 2. D1557 Standard Test Method for Moisture Content Penetration Resistance Relationships of Fine-Grained Soils. 3. D6938 Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth).
B. Caltrans
1. R-Value Test CALTRANS Test Methods 301-F and 301-G.
C. Standard Specifications for Public Works Construction (“GREENBOOK”), 2018 Edition published by Public Works Standards, Inc. (PWSI).
D. City of San Diego Supplement to the GREENBOOK (“WHITEBOOK”), 2018 Edition.
104205 32 11 33 - 1 E. City of San Diego Standard Drawings, 2018 Edition – Schedule J Paving (SDG-113)
1.3 SUBMITTALS
A. Test Results:
1. Submit one (1) R-value test and associated pavement section per SDG-113 shall be submitted each for the East and West side of the Railroad.
1.4 QUALITY CONTROL STANDARDS
A. The following sampling and testing methods will be used by the Representative:
1. Determination of in-place density and water content of soil and soil aggregate by the nuclear gage method (shallow depth), ASTM D6938. 2. Determination of laboratory moisture density relations of soils by ASTM D1557. 3. Sampling of backfill and fill materials by ASTM D75. 4. Determination of R-value of soils by CALTRANS Test Methods 301- F and 301-G.
B. The Representative shall determine how many, and from where, the test samples shall be obtained.
C. Provide sufficient time during construction for the performance of any quality control testing deemed necessary by the Representative. Permit the Representative to make field density tests of any compacted cement treated base layer before placing additional material or subsequent concrete pavement section.
D. Any test falling below the specified relative compaction or relative density shall be deemed non-compliant with the specifications. Rework the entire area between locations that have passed until all tests in the area meet the specified relative compaction or relative density.
E. Any reference to soil classification types shall conform to the Unified Soil Classification System per ASTM D2487.
104205 32 11 33 - 2 PART 2 – PRODUCTS
2.1 CEMENT TREATED BASE (CTB)
A. Cement Treated Base shall meet the requirements of the WHITEBOOK, Section 201-9.1.
PART 3 – EXECUTION
3.1 USE OF CEMENT TREATED BASE (CTB)
A. Prior to preparing CTB, Contractor shall determine if CTB is required in accordance with City of San Diego Standard Drawing No. SDG-113 “Pavement Design Standards Schedule “J”” by obtaining resistance values (R-values) of the base soils after excavation to subgrade.
B. Submit R-value results and proposed Portland Cement Concrete Pavement section meeting the requirements of SDG-113. If CTB is required, continue per the following Sections. If CTB is not required, continue in accordance with Section 32 13 13 Portland Cement Concrete Pavement for Roads.
3.2 ALTERNATIVE FULL DEPTH CONCRETE PAVEMENT SECTION
A. If approved by City Representative, Contractor may propose and use a full depth PCC pavement section in lieu PCC pavement over CTB. Such approval shall be subject to all conditions and qualifications required by City and shall not result in additional compensation therefor.
3.3 PREPARATION OF CTB
C. Prepare CTB in accordance with the requirements of Section 201-9 and 301-3 of the GREENBOOK as modified by the WHITEBOOK.
3.4 REPAIR
A. Contractor shall repair cement treated base by removing and replacing the entire depth of affected layers in the damaged area at no additional cost to the Authority. Feathering will not be permitted for repair of low areas.
B. For utilities that are installed after placement with CTB, the trench may be backfilled with Controlled Low Strength Material (CLSM) per Section 31_23_23.15_Trench_Backfill.
104205 32 11 33 - 3 PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for CEMENT TREATED BASE COURSES shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 32 11 33
104205 32 11 33 - 4 SPECIAL PROVISIONS
DIVISION 32 – EXTERIOR IMPROVEMENTS
SECTION 32 13 13 – PORTLAND CEMENT CONCRETE PAVEMENT FOR ROADS
PART 1 - GENERAL
1.1 SUMMARY
A. This Section covers furnishing and installing Portland Cement Concrete pavement for roadways in accordance with the City of San Diego requirements and these special provisions.
B. Related Sections:
1. Section 32 11 33 Cement Treaded Base Courses 2. Section 31 20 00 Earth Moving 3. Section 31 23 23.15 Trench Backfill
1.2 REFERENCES
A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
1. Standard Specification for Public Works Construction (“GREENBOOK”), 2018 Edition published by Public Works Standards, Inc. (PWSI). 2. City of San Diego Supplement to the GREENBOOK (“WHITEBOOK”), 2018 Edition (Effective January 1, 2019) 3. City of San Diego Standard Drawings, 2018 Edition (Effective January 1, 2019)
1.3 SUBMITTALS
A. Design Data:
1. Mix Design for PCC Pavement
B. Test Reports:
1. Slump Test 2. Strength Test
104205 32 13 13–1 C. Batch Tickets:
1. Submit batch tickets for each load of ready-mixed concrete in accordance with ASTM C94/C94M.
D. Structural Section
1. Submit proposed structural section(s) for concrete pavement by obtaining R-Values in accordance with Section 32 11 33 CEMENT TREATED BASE COURSES and applying City of San Diego Standard Drawing No SDG-113.
1.4 QUALITY CONTROL
A. Slump
1. Slump shall not exceed the maximum allowed per the accepted mix design for each type of mix provided. 2. Test for slump in accordance with ASTM C143.
B. Compressive Strength
1. Test the concrete compressive strength of each batch placed during continuous operations using two cylinder samples fabricated from a single load of concrete for each unique pour. 2. Test for compressive strength in accordance with ASTM C39.
C. Meet additional quality requirements for PCC pavement materials in accordance with the GREENBOOK and the WHITEBOOK
PART 2 – PRODUCTS 2.1 MATERIALS
A. Portland Cement Concrete
1. Portland Cement Concrete for Pavement shall be Concrete class 560-B-3250 in accordance with the GREENBOOK Section 201-1 as modified by the WHITEBOOK.
B. Joint Dowel Bars
1. Joint Dowel Bars shall be plain steel, Grade 60 in accordance with ASTM A615 and as shown on the plans. 2. Bars shall be cut true to length with no scale or ruts and with ends square and free of burrs.
C. Joint Bar Lubricant
104205 32 13 13–2 1. Lubricant for Joint Bars shall be curing compound no. 3 or paraffin based. Paraffin-based lubricant shall be Bradley Coatings Group BCG 6116 or Valvoline Tectyl 506 or equal and shall be factory- applied.
D. Premolded Join Filler and Joint Sealants
1. Premolded Joint filler shall be in accordance with GREENBOOK Section 201-3.2 as modified by the WHITEBOOK. 2. Joint Sealants shall be in accordance with GREENBOOK Section 201-3.5 as modified by the WHITEBOOK. 3. Materials shall match existing pavement joint filler or sealants for size, locations and use.
E. Concrete Curing Materials
1. Concrete curing materials may be either liquid resin or sheet curing material in accordance with GREENBOOK Section 201-4 as modified by the WHITEBOOK.
PART 3 – EXECUTION 3.1 MEASURING, MIXING AND CONVEYING OF CONCRETE
A. Measure, mix, and convey concrete for pavement in accordance with ASTM C94.
3.2 PLACEMENT OF PORTLAND CEMENT CONCRETE PAVEMENT - GENERAL
A. The proposed structural section for the area to receive concrete pavement shall be submitted to the Representative for review and comment.
B. Excavate the subgrade to neat lines and place cement treated base as required or compact subgrade to the elevations required for the structural section.
C. Drill, prepare and place dowels in existing pavement at the locations and spacing shown on the plans and per Paragraph 3.4.A.
D. Adjust utility manholes, pullboxes or other utilities to finished grade.
E. Place concrete on subgrade or cement treated base sufficiently dampened to ensure no moisture will be absorbed from the fresh concrete.
F. Place concrete to the required depths over the full width of the section.
G. Finish, cure and protect concrete pavement.
104205 32 13 13–3 3.3 JOINTS
A. Dowels
1. Install by bonding the dowels into holes drilled into the hardened concrete. Drill holes into the hardened concrete approximately 3 mm 1/8-inch greater in diameter than the dowels. Bond the dowels in the drilled holes using epoxy resin injected at the back of the hole before installing the dowel and extruded to the collar during insertion of the dowel so as to completely fill the void around the dowel. Application by buttering the dowel is not permitted.
2. Hold the dowels in alignment at the collar of the hole, after insertion and before the epoxy resin hardens, by means of a suitable metal or plastic collar fitted around the dowel. Check the vertical alignment of the dowels by placing the straightedge on the surface of the pavement over the top of the dowel and measuring the vertical distance between the straightedge and the beginning and ending point of the exposed part of the dowel.
B. Construction Joints
1. Continuously place concrete without stoppage or place rigid transverse headers vertically and at right angles to the centerline of the street as directed by the Representative.
C. Match Existing Transverse Joints
1. Match existing transvers joint type and location in new pavement to existing concrete road pavement into which the construction is being connected.
2. At a minimum, provide sawcut transverse joints 1/4” wide, 1/3 depth of pavement at 15’ on-centers or prorated distance based on existing joint layout. Saw cut between 8 – 24 hours of concrete placement.
3.4 CONSOLIDATING
A. Consolidate, tamp and/or vibrate and float in accordance with Section 302-6 of the GREENBOOK as modified by the WHITEBOOK.
3.5 FINISHING
A. Finishing Concrete
1. Start finishing operations immediately after placement of concrete.
104205 32 13 13–4 2. Finish pavement surface on both sides of a joint to the same grade. Finish formed joints from a securely supported transverse bridge. Provide hand finishing equipment for use at all times.
3. Joint finish – Before concrete is hardened, correct edge slump of pavement, exclusive of edge rounding, in excess of 0.25 inches. Finish concrete surface on each side of construction joints to the same plane, and correct deviations before newly placed concrete has hardened.
B. Texturing
1. Before the surface sheen has disappeared and before the concrete hardens, provide a wire broom texture to the surface of the pavement. After curing is complete, thoroughly broom all textured surfaces to remove all debris. Finish the concrete in areas of surface utility appurtenances in the pavement to provide a surface of the same texture as the surrounding area.
2. Wire brooming – Finish the surface of the slab by brooming the surface with a new wire broom at least 18 inches wide. Gently pull the broom over the surface of the pavement from edge to edge just before the concrete becomes non-plastic. Slightly overlap adjacent strokes of the broom. Broom perpendicular to centerline of pavement so that corrugations produced will be uniform in character and width, and not more than 1/16 inch in depth. Maintain broomed surface free from porous spots, irregularities, depressions, and small pockets or rough spots such as may be caused by accidentally disturbing particles of coarse aggregate embedded near the surface.
3.6 CURING AND PROTECTION
A. Cure concreted using liquid membrane forming compound or sheet materials to maintain continuously wet or membrane protected concrete to to prevent plastic shrinkage cracking or other damaging drying of the concrete.
B. Protect surface and repair damage immediately. Foot traffic for inspection may be allowed after 24 hours
3.7 FIELD QUALITY CONTROL
A. Slump tests shall be taken at the direction of the Representative during placement
B. Flexural Strength Tests specimens shall be taken for each unique location/paving operation and tested as directed by the Representative at 7-days, unless otherwise required.
104205 32 13 13–5 C. Straight Edge – Test for dips or bumps in excess of existing adjacent pavement surfaces in both amplitude and frequency to the satisfaction of the Representative.
PART 4 – MEASUREMENT AND PAYMENT 4.1 MEASUREMENT AND PAYMENT
A. Full compensation for PORTLAND CEMENT CONCRETE PAVEMENT FOR ROADS shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
104205 32 13 13–6 SPECIAL PROVISIONS
DIVISION 32 – EXTERIOR IMPROVEMENTS
SECTION 32 16 00 – CURBS, GUTTERS, SIDEWALKS, AND MEDIANS
PART 1 - GENERAL
1.1 GENERAL
Work covered in this specification shall consist of curb, gutters, sidewalks, median stamped concrete paving and related improvements as shown on the Drawings and described herein.
1.2 REFERENCES
A. The following is a list of standards which may be referenced in this section:
1. American Association of State Highway and Transportation Officials (AASHTO): T 99, Standard Specification for the Moisture-Density Relations of Soils Using a 2.5 kg (5.5 pound) Rammer and a 305 mm (12 in.) Drop.
2. American Concrete Institute (ACI): 304R, Guide for Measuring, Mixing, Transporting, and Placing Concrete.
3. ASTM International (ASTM):
a. C94, Standard Specification for Ready-Mixed Concrete. b. C309, Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete. c. D994, Standard Specification for Preformed Expansion Joint Filler for Concrete (Bituminous Type).
4. Standard Specification:
a. Standard Specification for Public Works Construction (“GREENBOOK”), 2018 Edition published by Public Works Standards, Inc. (PWSI).
b. .City of San Diego Supplement to the GREENBOOK (“WHITEBOOK”), 2018 Edition (Effective January 1, 2019)
104205 32 16 00 - 1 1.3 SUBMITTALS
A. Product Data:
1. Form Material: Information on metal forms, if used, including type, condition, surface finish, and intended function.
2. Concrete Mix Design: Complete data on concrete mix, including aggregate gradations, color additives, admixtures and other materials in accordance with requirements of ASTM C94.
3. Curing Compound: Manufacturer’s Certificate of Compliance and application instructions.
B. Samples
1. Deliver one 12” x 12” x 4” thick sample of colored, stamped Concrete for medians to project site and place in median for comparison. Remove upon approval.
C. Delivery Tickets:
1. Ready-mix delivery ticket for each truck in accordance with ASTM C94.
1.4 QUALITY CONTROL STANDARDS
A. Regulatory Requirements: the work and materials shall conform to these Special Provisions and meet the applicable quality requirements of the GREENBOOK and the WHITEBOOK..
PART 2 - PRODUCTS
2.1 GENERAL
A. Unless otherwise shown, materials shall conform to the applicable requirements of the GREENBOOK and the WHITEBOOK.
2.2 EXPANSION JOINT FILLER
A. Preformed asphalt-impregnated, expansion joint material meeting ASTM D994, 1/2-inch thick.
2.3 CONCRETE
A. Ready-mixed meeting ASTM C94, Option A, with compressive strength shall match information shown on the plans, details or in accordance with the Standard Specifications.
104205 32 16 00 - 2 A. Concrete for median pavement shall be integrally colored to match existing medians in a clean state.
2.4 CURING COMPOUND
A. Liquid membrane forming, clear or translucent, suitable for spray application and meeting ASTM C309, Type 1.
2.5 DETECTABLE WARNING SURFACES
A. Detectable warning tiles shall be embedded in an inline dome pattern on all curb ramps and walking surfaces at locations and to dimensions on the plans, in accordance with these special provisions and the following references:
1. SECTION 218 Detectable Warning Tiles (DWT) of the WHITEBOOK.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Perform Work in accordance with this Special Provision and the applicable requirements of the GREENBOOK and the WHITEBOOK.
3.2 FORMWORK
A. Lumber Materials:
1. 2-inch dressed dimension lumber, or metal of equal strength, straight, free from defects that would impair appearance or structural quality of completed curb, median island, and sidewalk.
2. 1-inch dressed lumber or plywood may be used where short- radius forms are required.
B. Metals: Steel in new undamaged condition.
C. Setting Forms:
1. Construct forms to shape, lines, grades, and dimensions. 2. Stake securely in place.
D. Bracing:
1. Brace forms to prevent change of shape or movement resulting from placement.
104205 32 16 00 - 3 2. Construct short-radius curved forms to exact radius.
E. Tolerances:
1. Do not vary tops of forms from grade line more than 1/8 inch when checked with 10-foot straightedge. 2. Do not vary alignment of straight sections more than 1/8 inch in 10 feet.
3.3 PLACING CONCRETE
A. Prior to placing concrete, remove water from excavation and debris and foreign material from forms.
F. Place concrete as soon as possible, and within 1-1/2 hours after adding cement to mix without segregation or loss of ingredients, and without splashing.
G. Place, process, finish, and cure concrete in accordance with applicable requirements of ACI 304, and this section. Wherever requirements differ, the more stringent shall govern.
H. To compact, vibrate until concrete becomes uniformly plastic.
3.4 CURB AND GUTTER CONSTRUCTION
A. Expansion Joints: Place at maximum 45-foot intervals and at the beginning and end of curved portions of curb, and at connections to existing curbs. Install expansion joint filler at each joint.
I. Curb Facing: Do not allow horizontal joints within 7 inches from top of curb.
J. Contraction Joints:
1. Maximum 15-foot intervals in curb. 2. Provide open joint type by inserting thin, oiled steel sheet vertically in fresh concrete to force coarse aggregate away from joint. 3. Insert steel sheet to full depth of curb. 4. Remove steel sheet with sawing motion after initial set has occurred in concrete and prior to removing front curb form. 5. Finish top of curb with steel trowel and finish edges with steel edging tool.
104205 32 16 00 - 4 K. Front Face:
1. Remove front form and finish exposed surfaces when concrete has set sufficiently to support its own weight. 2. Finish formed face by rubbing with burlap sack or similar device to produce uniformly textured surface, free of form marks, honeycomb, and other defects. 3. Remove and replace defective concrete. 4. Apply curing compound to exposed surfaces of curb upon completion of finishing. 5. Continue curing for minimum of 5 days.
L. Backfill curb with earth upon completion of curing period, but not before 7 days has elapsed since placing concrete.
1. Backfill shall be free from rocks 2 inches and larger and other foreign material. 2. Compact backfill firmly.
3.5 MEDIAN ISLAND AND SIDEWALK CONSTRUCTION
A. Thickness:
1. 4 inches for median islands and sidewalks.
B. Expansion Joints:
1. Place between adjacent curb and sidewalk, where sidewalk ends at curb, around posts, poles, or other objects penetrating sidewalk the pavement. Install expansion joint filler at each joint. 2. Align with stamp pattern in medians.
C. Contraction Joints:
1. Provide transversely at locations opposite contraction joints in curb. 2. Dimensions: 3/16-inch by 1-inch weakened plane joints. 3. Construct straight and at right angles to surface of walk. 4. Align with stamp pattern in medians.
D. Finish:
1. Broom surface with fine-hair broom at right angles to length of walk and tool at edges, joints, and markings. 2. Mark walks transversely at 5-foot intervals with jointing tool; finish edges with rounded steel edging tool. 3. Apply curing compound to exposed surfaces upon completion of finishing. 4. Protect sidewalk and median paving from damage and allow to cure for at least 7 days.
104205 32 16 00 - 5 3.6 DETECTABLE WARNING TILE (DWT) INSTALLATION
A. Detectable warning tiles shall be installed in accordance with these special provisions and the following references:
1. SECTION 303-5.10.1 Installation of the WHITEBOOK.
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for CURBS, GUTTERS, SIDEWALKS, AND MEDIANS shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 32 16 00
104205 32 16 00 - 6 SPECIAL PROVISIONS
DIVISION 32 – EXTERIOR IMPROVEMENTS
SECTION 32 17 32 - PAVEMENT MARKINGS AND SIGNS
PART 1 - GENERAL
1.1 SUMMARY
A. This item shall consist of the markings, and stripes on the surface of roadways and parking lots; and the installation of signs, in accordance with these Special Provisions and at the locations shown on the Drawings, or as directed by the Representative.
1.2 SUBMITTALS
A. Product Data for each product specified:
1. Pavement Marking and Striping.
2.. Channelizers.
3. Roadway and Parking Signs.
PART 2 - PRODUCTS
2.1 MATERIALS ACCEPTANCE
A. The Contractor shall furnish manufacturer's certified test reports for materials shipped to the project. The certified test reports shall include a statement that the materials meet the specification requirements. The reports can be used for material acceptance or the Representative may perform verification testing. The reports shall not be interpreted as a basis for payment. The Contractor shall notify the Representative upon arrival of a shipment of materials to the site.
2.2 PAINT
A. Paint shall be Waterborne in accordance with the requirements of State (of California) Specification PTWB-01R2. Paint shall be furnished in White, Yellow and Black. The color of painted traffic stripes and pavement markings must comply with ASTM D6628..
104205 32 17 32-1 2.3 REFLECTIVE MEDIA
A. Glass beads shall meet the requirements for State (of California) Specification No. 8010-004 (Type II). Glass beads shall be treated with all compatible coupling agents recommended by the manufacturers of the paint and reflective media to ensure adhesion and embedment.
2.4 TRAFFIC SIGNS
A. The Contractor shall provide 16-gauge aluminum signs of the type, size, shape and pattern shown on the plans, or as designated by the Representative.
B. Traffic signs shall be in conformance with the California Manual of Uniform Traffic Control Devices (CA MUTCD), latest edition, unless otherwise specified.
C. Sign faces shall be of reflectorized porcelain enamel. Materials and construction methods shall conform to California Department of Transportation (“Caltrans”) Standard Specifications Section 56-2, latest edition.
D. Structural steel tubing used for roadside sign post & sleeves shall be galvanized 12 gauge cold rolled steel of the nominal dimensions and meet the requirements of ASTM A653. Additional requirements shall be in accordance with City of San Diego Standard Drawing No SDM-104. All fastening hardware is to be provided by the contractor.
E. Mounting hardware for signs mounted on poles or other equipment shall be in accordance with sign panel manufacturer’s instructions or these minimum standards:
1. Straps and saddle brackets for mounting sign panels on lighting standards, sign structure posts, and traffic signal standards must be stainless steel complying with ASTM A167, Type 302B. Theft-proof bolts must be stainless steel with a chromium content of at least 17 percent and a nickel content of at least 8 percent.
2. Bolts, except theft-proof bolts, lag screws, metal washers, and nuts must be made of commercial-quality steel and hot-dip galvanized after fabrication. Fiber washers must be commercial quality.
3. Galvanizing of mounting hardware shall be used when signs are mounted to galvanized poles or other equipment. Galvanizing must
104205 32 17 32-2 comply with Section 75-1.02B of the Caltrans Standard Specifications.
2.5 CHANNELIZERS
A. Channelizers shall conform to the Caltrans Standard Plans and Standard Specifications, 2018 Edition.
PART 3 - EXECUTION
3.1 WEATHER LIMITATIONS
A. The painting shall be performed only when the surface is dry and when the surface temperature is at least 45°F (7°C) and rising and the pavement surface temperature is at least 5°F (2.7°C) above the dew point. Painting operations shall be discontinued when the surface temperature exceeds 90 degrees F (32 degrees C).
3.2 EQUIPMENT
A. Equipment shall include the apparatus necessary to properly clean the existing surface, a mechanical marking machine, a bead dispensing machine, and such auxiliary hand-painting equipment as may be necessary to satisfactorily complete the job.
B. The mechanical marker shall be an atomizing spray-type or airless type marking machine suitable for application of traffic paint. It shall produce an even and uniform film thickness at the required coverage and shall apply markings of uniform cross sections and clear-cut edges without running or spattering and without over spray.
3.3 PREPARATION OF SURFACE
A. Immediately before application of the paint, the surface shall be dry and free from dirt, grease, oil, laitance, or other foreign material that would reduce the bond between the paint and the pavement. The area to be painted shall be cleaned by sweeping and blowing or by other methods as required to remove all dirt, laitance, and loose materials without damage to the pavement surface. Use of any chemicals or impact abrasives during surface preparation shall be accepted in advance by the Representative. Paint shall not be applied to Portland cement concrete pavement until the areas to be painted are clean of curing material. Sandblasting or high- pressure water shall be used to remove curing materials.
104205 32 17 32-3 3.4 LAYOUT OF MARKINGS
A. The proposed markings shall be laid out in advance of the paint application. The locations of markings to receive glass beads shall be shown on the plans.
3.5 APPLICATION
A. Paint shall be applied at the locations and to the dimensions and spacing shown on the plans. Paint shall not be applied until the layout and condition of the surface has been accepted by the Representative.
B. The edges of the markings shall not vary from a straight line more than 1/2 inch (12 mm) in 50 feet (15 m) and marking dimensions and spacings shall be within the following tolerances:
Dimension and Spacing Tolerance
36 inches (910 mm) or less ±1/2 inch (12 mm)
greater than 36 inches to 6 feet (910 mm to ± 1 inch (25 mm) 1.85 m) greater than 6 feet to 60 feet (1.85 m to 18.3 ± 2 inches (51 mm) m) greater than 60 feet (18.3 m) ± 3 inches (76 mm)
C. The paint shall be mixed in accordance with the manufacturer's instructions and applied to the pavement with a marking machine at the rate(s) shown in Table 1. The addition of thinner will not be permitted.
TABLE 1. APPLICATION RATES FOR PAINT AND GLASS BEADS
104205 32 17 32-4 Paint Type Paint Glass Beads, Square feet per Type III gallon, ft2/gal Pounds per gallon (Square meters per of paint—lb./gal. liter, m2/l) (Kilograms per liter of paint—kg/l
Waterborne 115 ft2/gal. maximum 10 (1.2 Kg/l) (2.8 m2/l)
Waterborne 230 ft2/gal. maximum 0 (Temporary) (5.6 m2/l)
D. Glass beads shall be distributed upon the marked areas at the locations shown on the plans to receive glass beads immediately after application of the paint. A dispenser shall be furnished which is properly designed for attachment to the marking machine and suitable for dispensing glass beads. Glass beads shall be applied at the rate(s) shown in Table 1. Glass beads shall not be applied to black paint. Glass beads shall adhere to the cured paint or all marking operations shall cease until corrections are made.
E. All emptied containers shall be returned to the paint storage area for checking by the Representative. The containers shall not be removed from the Work Site or destroyed until authorized by the Representative.
3.6 PROTECTION AND CLEANUP
A. After application of the paint, all markings shall be protected from damage until the paint is dry. All surfaces shall be protected from excess moisture and/or rain and from disfiguration by spatter, splashes, spillage, or drippings of paint. The Contractor shall remove from the site all debris, waste, loose or unadhered reflective media, and by-products generated by the surface preparation and application operations to the satisfaction of the Representative. The Contractor shall dispose of these wastes in strict compliance with all applicable state, local, and Federal environmental statutes and regulations.
3.7 TEMPORARY TRAFFIC CONTROL
104205 32 17 32-5 A. When striping active roads it shall be the Contractor’s responsibility to provide the necessary temporary traffic control to ensure accessibility, worker safety, and traffic flow. Contractor shall install temporary traffic control measures in accordance with the approved traffic control plans for this work and obtain by the Contractor from the City of San Diego,
3.8 CHANNELIZERS
A. Channelizers shall conform to the provisions in thes Special Provisions. Channelizer posts shall be yellow in color. Channelizers shall have affixed night retroreflective sheeting as specified in the special provisions. The retroreflective sheeting shall be 3" x 12" in size. The retroreflective sheeting shall be visible at 1,000 feet at night under illumination of legal high beam headlights, by persons with vision of or corrected to 20/20. The channelizer bases shall be adhered to the pavement as required by the Caltrans Standard Specifications. Channelizers shall be applied only on a clean, dry surface. Channelizers shall be placed on the alignment and location shown on the plans or directed by the Representative. The channelizers shall be placed uniformly, straight on tangent alignment and on a true arc on curved alignment. All layout work necessary to place the channelizers to the proper alignment shall be performed by the Contractor. If the channelizers are displaced or fail to remain in an upright position, from any cause, the channelizers shall immediately be replaced or restored to their original location, by the Contractor.
3.9 SIGNS AND SIGN POSTS
A. Mount signs on street lights, traffic signal poles or mast arms, railings, gates, railroad crossing warning poles or new metal sign posts as shown on the plans and in accordance with these provisions.
B. Signs mounted on poles, railings, gates or other equipment shall be mounted using suitable hardware matching the finish (galvanizing) or type of steel of the improvement to which mounting shall occur and in accordance with Part 2 herein.
C. Signs mounted on Sign Posts
1. Construct in accordance with City of San Diego Standard Drawing No SDM-104.
104205 32 17 32-6 PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for PAVEMENT MARKINGS AND SIGNS shall be considered as included in the contract lump sum price paid for SASSAFRAS STREET WIDENING and no additional compensation will be allowed therefor.
END OF SECTION 32 17 32
104205 32 17 32-7
FILE NO. PLA 580 PROJ# 300000276785
October 15, 2019
Mike Ruth 2417-A Mccain Rd. San Diego, CA 92101
Dear Mr. Ruth,
Subject: YOUR PROJECT HAS BEEN ISSUED TO PRE-CONSTRUCTION
The electric service order to serve your project has been issued to our Construction Department. Please feel free to call 619-699-1039 (Metro Projects); to arrange a pre-construction meeting or to discuss any construction-related questions. PROJECT IDENTIFIERS
When calling our Construction Department, the following will identify your project: Project Name: NEW UG PED - SASSAFRAS Address: 1632 1/3 Sassafras St. San Diego, CA 92103 Work Order #: Electric: 530000168050
SITE ACCESS – LINE TRUCK, METER, SERVICE, AND TRANSFORMER
SDG&E must have line truck access to gas and electric facilities for the purpose of installation, reading, testing, inspection, maintenance, and emergencies (refer to SDG&E Service Standards and guide sections 016, 005, 604, and 1006-1008).
CHECKLIST
The following items must be completed before meters can be set: Your work must be completed and accepted, and SDG&E’s portion of the work must be completed. Ensure that the address on your building permit is the same address you provided to SDG&E for your project. If not, delays in meter set(s) and any applicable refunds may result. Whoever is going to be responsible for the billing will need to call our Customer Contact Center toll free at 1-800-411-SDGE (7343) to request an application. We must receive either permanent or temporary inspection clearances from the City of San Diego. PROJ# 300000276785 2 October 15, 2019
Please be advised that prior to construction, City of San Diego approval is required for your meter and/or service. Once the authority having jurisdiction notifies us that your equipment has been inspected and passed, and SDG&E’s work is complete, it will take approximately three days to set the meters. This assumes we already have an approved address list and application from whomever is to have the service in their name. These last few items can cause unfortunate delays if not attended to in a timely manner.
THANK YOU
We appreciate your business and hope you are very satisfied with our service. If I may be of further assistance or should you have any non-construction-related questions (easements, charges, etc.), please call me or my assistant at the number below. Our normal office hours are 7:00 a.m. to 4:00 p.m., Monday through Friday. For additional general information, please visit our website at http://sdge.com/index.html.
Sincerely,
Eva Norman /VG
Eva Norman Customer Project Planner Telephone: (858) 636-3965 ELECTRIC UNDERGROUND METER & SERVICE LOCATION Customer Copy
Notification #: 300000276785 Job #: TB: 1268-J7 Wanted Date: ON TRENCH INSP Date Prepared: 10/09/2019 Customer Type: Commercial Service Type: UG SERVICE REWIRE/RELOCATION Project Title: NEW UG PED - SASSAFRAS Project Address: 1632 1/3 SASSAFRAS ST Project City: SAN DIEGO Additional Address Info: Customer POC: MIKE RUTH Customer Phone #: 619-742-4364 SDGE Contact: Operations Assistant Contact Info: TRENCH DESK,619-699-1039
Traffic Control Permit Required SDG&E Application Required-Call: 1-800-411-7343 Excavation/Encroachment Permits Required By: Customer Municipal Inspection required By: CITY OF SAN DIEGO Temp Service Charge due on First Bill $ 0.00
SERVICE ATTACHMENT POINT AND/OR METER LOCATION: Locate 100 amp panel on sidewalk 4' North-East of existing pedestal. Customer is to provide all excavation, trench, 3" conduit, backfill, compaction, handhole, 3/4" pulling and measuring tape in conduit and surface repair from interception point to new meter pedestal. Take conduit to within distance as instructed by SDG&E inspector. If selected, Customer assumes responsibility for condition of existing stubs.
Station ID #: 1479-113 Structure #: D2091071545 Joint Trench With: Handhole Installed By: Handhole Lid Shall Read: Standards Page: Ladder Arms: Stop Trench: from Pole Riser Quad: Bend Installed By: Bend Type: Bend Info: Conduit Installed By: CUSTOMER Conduit Size: 3" Service Panel Rating: 100A Number/Size of Main Switch: 100A Voltage: 120/240 # of Wires: 3 Phase: 1 Utilities Maximum Contribution to Fault Current: 42,000 Metering: Self Contained. Test Bypass Facilities Reqd Meter Clips: 4
Meter height -- 4'0'' min. (3'0" min. for multiple installation) -- 6'3" max. From finish grade to centerline of meter base. Meters are required to be readily accessible 24 hours per day. Meters must be located in a safe area free of any potentially hazardous or dangerous condition. Provide 3-ft. x 3-ft. clear and level working space in front of meter. Where meter room is proposed, contact the planner at the nearest SDG&E office. Meter bases and meter service disconnects must be located at or immediately adjacent to each other and be identified with address and unit number.
PROCEDURE FOR INSTALLATION 1. PHONE DIG ALERT "811" AT LEAST TWO DAYS PRIOR TO TRENCHING FOR LOCATION OF UNDERGROUND UTILITIES. 2. Phone Operations Assistant at 619-699-1039 for the following: - 3 Working days prior to trenching to arrange pre-meet with inspector and initiate trenching process. - After excavation of trench, installation of conduit and service entrance equipment at meter location, CALL FOR INSPECTION. Do not cover conduit without inspector's written approval to backfill. - When trench is backfilled and compacted, CALL FOR INSPECTION. - If service entrance equipment is installed after backfill, CALL FOR INSPECTION OF THE EQUIPMENT. 3. Meter cannot be set until inspector has approved installation, including service equipment, and receipt of city/county/state inspection
Additional Information: Right of Way Required Assessor's Parcel Number: Please call your Operations Assistant at 619-699-1039 with questions about application, inspection, construction installation and to schedule a crew.
If SDG&E encounters hazardous or toxic material while performing construction of your project, SDG&E will halt work immediately and it will be your responsibility to remove and or clean up all hazardous or toxic material prior to SDG&E continuing construction. SDG&E shall have no liability or obligation whatsoever to cleanup, remove or remediate any hazardous or toxic materials discovered during the course of construction unless it is through negligence of SDG&E. Customer-owned facilities to receive gas service are subject to all applicable local and state of California inspection authority requirements. Building address and/or houseline must be permanently identified prior to meter set. Information on this sheet is void after six (6) months. Keep this notice with building permit.
Planned By: Eva Norman Phone#: 8585035175
NEW UG, 1632 1/3 SASSAFRAS ST 3x276785
SH480353649-127 1-50 HEP 800A D1992269408376 1479-113 F.C. 42,000 1 – 25 NDL 120/240, CUSTOMER TO PROVIDE ALL TRENCH AND CONDUIT D2091071545 1PH, 3W (1-3” – 145’). PRIOR TO DIGGING CALL SDGE’S TRENCH DESK AT 619-699-1039 FOR PRE-MEET
VICINITY MAP 1
368480 2-40A 100A PED 360P832356 1PH, 3W 120/240 SDGE TO INSTALL SVC TO 100A PED 1479 1 – 18A H2090571543
VICINITY MAP
SASSAFRAS
Job Notification # 3x276785 Location: 1632 1/3 SASSAFRAS ST KETTNER
Planner Name: EVA NORMAN Planner Phone: 858-503-5175
ConstructionNEW Contact:FUSE OPS BOXCOORDINATOR ON POLEPhone: 619 P195196-699-1039 1741P 1/3195197P195196 LA MANCHA DR Customer Name: Phone: MIKE RUTH 619-742-4364
LOCATION OF NEW QUEUE CUTTER TRAFFIC SIGNAL METER SPECIAL PROVISIONS
DIVISIONS 32 – EXTERIOR IMPROVEMENTS
SECTION 32 17 33 – TRAFFIC SIGNAL INSTALLATION AND MODIFICATION
PART 1 - GENERAL 1.1 SUMMARY
A. This section includes modifications of traffic signals and safety lighting.
1.2 REFERENCE STANDARDS
A. The following standards shall apply to the work in this Section:
1. Standard Specifications for Public Works Construction (“GREENBOOK”), 2018 Edition published by Public Works Standards, Inc. (PWSI).. 2. City of San Diego Supplement to the GREENBOOK (“WHITEBOOK”), 2018 Edition (Effective January 1, 2019) 3. California Department of Transportation (“Caltrans”) Standard Specifications, 2018 Edition. 4. California Department of Transportation (“Caltrans”) Standard Plans, 2018 Edition. 5. California Manual on Uniform Traffic Control Devices, 2014 Edition.
1.3 SUBMITTALS
A. Product Data: The Contractor shall submit a specification sheet (cut sheet) for each component of the traffic signal system identifying the proposed equipment and documenting its compliance with applicable requirements.
1.4 QUALITY CONTROL
A. Equipment: Components shall comply with the minimum testing and quality requirements of the applicable standard as defined herein.
B. Construction: All traffic signal construction shall be in compliance with “Part 3 – Execution” of these specifications and the referenced standards as defined herein.
C. Traffic Signal Functional Testing shall prove basic functionality, connectivity, and circuit integrity. Such testing shall be the responsibility of the Contractor.
104205 32 17 33-1 PART 2 - PRODUCTS A. Traffic Signal Equipment 1. Traffic signal equipment and installation materials shall be as shown on the Drawings and in accordance with Section 700 of the WHITEBOOK. B. Railroad Preemption Circuit and Interface 1. The Railroad preemption circuit interface shall be made using McCain’s Railroad Interface Panel (RRIP). The McCain RRIP is a termination panel for railroad field wires and acts as a single multi-wire preemption interface. 2. The RRIP model shall be selected based on the actual type of mounting for each location as verified (NEMA/Caltrans or ATC Rack Mounted) 3. The RRIP procurements shall include wiring harnesses, mounting lugs, spade lugs or other parts required for a complete and functional installation at each location shown on the Drawings or specified herein. C. Notification Placard 1. Contractor shall furnish and install a notification placard in each of the three traffic signal cabinets constructed or modified by the Project. 2. The placard shall be placed next to the controller so that it is visible by any person that would be modifying programming at the controller in the cabinet. 3. The placard shall be: a. Not less than 80 square inches in size, b. Engraved “Trolley Red” plastic with following text in white letters: “WARNING: THIS TRAFFIC SIGNAL IS PREEMPTED BY RAILROAD OPERATIONS. DO NOT MODIFY SIGNAL TIMING WITHOUT FIRST COORDINATING WITH THE RAILROAD. CONTACT SDMTS AT 619-238-0100” c. Attached by clips or wire lugs from the top only so it can be “flipped” up out of the way when required but not easily removed or discarded by technicians working in the field.
PART 3 - EXECUTION 3.1 INSTALLATION
104205 32 17 33-2 A. Installation and modification of traffic signal equipment shall be per Section 700 of the WHITEBOOK, these Special Provisions, and as shown on the Drawings.
B. Installation of the RRIP shall be in accordance with the manufacturer’s instructions and in coordination with the requirements of the Representative, representatives from the City of San Diego Traffic Signal Operations and the Railroad.
3.2 POWER SUPPLY, METER AND ADDRESS
A. The Queue Cutter Signal will require a new power meter from San Diego Gas and Electric (SDG&E). Contractor shall be responsible for coordinating, furnishing, and constructing the meter pedestal, conduit pathway and conductors, including pullboxes and required materials from the meter pedestal to the service point identified by SDG&E.
B. Contractor shall finalize the street address for the meter from the City of San Diego Development Services Department and supply it to SDG&E and City of San Diego Traffic Operations representatives to coordinate the establishment of billing for the meter in accordance with the requirements of SDG&E and City.
C. See Attachment A to this specification for service order and associated information and preparatory work previously completed by Authority.
3.3 TESTING AND CUT OVER
A. Traffic Signal Timing
1. Coordination
a. The City of San Diego will develop the traffic signal programming for each traffic signal location. Traffic signal programming charts will be provided to the contractor who will program the controllers. City representatives may oversee or supervise programming by Contractor. Contractor shall schedule City oversight at least 48 hours in advance of programming.
2. Testing and Cutover to Live Operations of Reconfigured Traffic Signals/New Queue Cutter Signal
a. Implementation of new or updated preemption programming shall be done in coordination and participation of the Representative, the City of San Diego traffic operations representative and the Railroad Representative (SDMTS and NCTD).
104205 32 17 33-3 b. Contractor shall support City and Railroad as required for phased construction, testing and acceptance. Such support may include but not be limited to, 1) Participating in all testing activities, 2) Bagging or rotating signal faces away from traffic during construction and testing, 3) Programming signal timing for interim and final conditions, by phase as may be required to create a safe and functional system for rail and vehicular traffic as well as pedestrians and cyclists. 4) Other actions or supporting actions required to create a fully functional and interconnected traffic signal system with railroad preemptions/advanced preemption notification and phasing.
PART 4 - MEASUREMENT AND PAYMENT
4.1 MEASUREMENT AND PAYMENT
A. Full compensation for TRAFFIC SIGNAL INSTALLATION AND MODIFICATION shall be considered as included in the contract lump sum price paid for TRAFFIC SIGNALS and no additional compensation will be allowed therefor.
END OF SECTION 32 17 33
104205 32 17 33-4 SPECIAL PROVISIONS
DIVISIONS 34 – TRANSPORTATION SECTION 34 42 00 – GENERAL SIGNALING REQUIREMENTS
PART 1 - GENERAL
1.01 DESCRIPTION
A. The Work specified in this section consists of general procedures and requirements necessary and incidental to the planning, manufacturing, installation, removal, relocation, modification, testing, placing in service, and documenting as-built conditions of the various signal systems to be provided by the Contractor.
B. The Contractor shall provide all materials and installation services required for complete working signaling systems, as described herein and as shown on the Drawings.
C. Drawings represent a detailed final design utilizing systems, components, and materials that meet the Special Provisions. Contractor may provide components and materials subject to review and comment of the Representative. If equivalent components and materials are submitted for review and comment of the Representative, the Contractor may be required to include in the submittal an alternate detailed final design, utilizing the symbology, nomenclature, and CADD standards depicted in the Drawings. Contractor's alternate final design drawings shall be submitted for review and comment by the Representative no later than 60 Days of Contractor receiving Notice To Proceed (NTP). The Representative shall provide a response to the alternative design within 60 Days of submittal. No addi- tional payment shall be made to the Contractor for an alternative design.
D. Contractor shall provide systems compliant with applicable rules and regulations of CFR 49 Part 234, CPUC General Order 75-D and CA MUTCD. Upon completion of the Contractor’s review of the Drawings, the Contractor shall submit marked-up Drawings to the Representative, indicating any corrections or modifications the Contractor may determine are required to conform to these rules and regulations. These revised drawings shall be submitted to the Representative within 60 Days of Contractor receiving NTP. The Airport representative will review the drawings submitted and, if warranted, will provide revised Drawings within 60 Days of receiving Contractor’s submittal.
E. The Contractor shall be represented at all meetings held with the Representative by a signal engineer qualified in the design and application of the signaling equipment the Contractor proposes for use on this project.
34 42 00 - 1 F. No circuit or system is considered to have met the requirement of this Special Provision for function and safety until it has been properly tested and verified in the field. Any circuit modifications made to meet the functional and safety requirements of this Special Provision shall be considered as a part of the Contractor's bid price and no additional compensation will be allowed therefor.
G. The Contractor shall be responsible for providing continuous train control and highway grade crossing warning during all phases of construction. At no time shall the work of the Contractor cause delay to train operation, cause an unsafe signaling condition to exist, or reduce the effectiveness or quality of the existing crossing warning systems. The Contractor shall submit, for review and comment by the Representative, its proposed plan for providing alternate methods of crossing warning whenever the existing automatic crossing warning devices are deactivated, altered, or modified in order to accommodate construction work. Alternate methods shall conform to CFR 49, Part 234, and all local ordinances.
H. The Contractor shall be responsible for review and coordination with proposed civil improvements to ensure that train control wayside signal systems provide continuous and safe operation for all phases of construction. Contractor shall be responsible for all relocation work to support each phase of construction. The Contractor shall submit, for review and comment by the Representative, it’s proposed plan for providing continuous method of train control whenever the existing wayside signal systems are altered or modified in order to accommodate construction work.
I. The Contractor shall provide signal personnel in support of all civil roadway construction activities that may have an effect on in-service wayside signal and grade crossing warning systems. The level of support provided by the Contractor shall be commensurate with the type of civil roadway work being performed.
J. Contractor shall protect existing signal cabling and, where necessary, relocate existing cabling in order to prevent damage to the cabling during all phases of construction work.
K. Contractor shall record the final as-built conditions of the signal systems. As-built documentation shall be maintained on a daily basis to ensure accuracy and integrity of the final as-built drawing set.
L. Contractor shall perform and document all tests and inspections in accordance with CFR 49 regulations, the AREMA Signal Manual, and these Special Provisions.
M. Contractor shall perform all work in accordance with the currently approved and applicable SANDAG/NCTD/SDTI Engineering Standard Drawings and these Special Provisions.
1.02 RELATED WORK
34 42 00 - 2 Specifications and requirements for systems and products are covered in greater detail in the sections listed below. These Specifications are in addition to these general signaling requirements.
A. Section 01 89 30 RAILROAD RELATIONS
B. Section 34 42 12 WAYSIDE CONTROLLER
C. Section 34 42 30 RELAYS
D. Section 34 42 36 MISCELLANEOUS PRODUCTS
E. Section 34 42 37 SIGNAL WIRE AND CABLE
F. Section 34 42 60 TESTING
G. Section 34 42 70 GRADE CROSSING WARNING SYSTEMS
1.03 REFERENCE STANDARDS
A. All electrical equipment, unless specifically excluded herein, shall conform to the standards of the National Electrical Manufacturers Association (NEMA), The Under- writers' Laboratories Inc., (UL), the Electrical Testing Laboratories (ETL), the National Electrical Testing Association, Inc. (NETA), or the Electronic Industries Association (EIA), wherever applicable. Unless specifically excluded herein, all materials and workmanship shall conform to the requirements of the National Electrical Code; California Administrative Code, Title 8, Chapter 4, Subchapter 5, Electrical Safety Orders; Standards of the American Society for Testing and Materials (ASTM); American National Standards Institute (ANSI); and any local ordinances that may apply.
B. Wherever reference is made to any of the standards mentioned above, the reference shall be construed to mean the code, order, or standard that is in effect on the day the Notice to Proceed is dated.
C. The following General Orders (G.O.) of the State of California Public Utilities Commission (CPUC) shall apply:
1. G.O. 26-D: Regulations Governing Clearances On Railroads And Street Railroads With Reference To Side And Overhead Structures, Parallel Tracks, Crossings Of Public Roads, Highways And Streets.
2. G.O. 52: Construction and Operation of Power and Communication Lines for the Prevention or Mitigation of Inductive Interference
34 42 00 - 3 3. G.O. 75-D: Regulations Governing Standards For Warning Devices For At- Grade Highway Rail Crossings In The State Of California
4. G.O. 88B: Rules for Altering Public Highway-Rail Crossings
5. G.O. 118: Construction, Reconstruction, and Maintenance of Walkways and Control of Vegetation
6. G.O. 128: Construction of Underground Electric Supply and Communication Systems
D. The following parts of the Code of Federal Regulations, Title 49, Transportation shall apply:
1. Part 212: State Safety Participation Regulations
2. Part 218: Railroad Operating Practices
3. Part 219: Control of Alcohol and Drug Use
4. Part 228: Hours of Service of Railroad Employees
5. Part 234: Grade Crossing Signal System Safety
6. The Contractor shall be responsible for adherence to all of the above rules and reporting requirements, including those regulations which require pre-employment drug testing and random drug testing of employees engaged in the installation and testing of signal facilities, and the reporting and tracking of employees injured in the performance of work on a railroad.
E. The California Manual on Uniform Traffic Control Devices, Part VIII, Traffic Control Systems for Railroad Highway Grade Crossings, shall apply.
F. SANDAG Engineering Standard Plans, 2020.1
G. In addition to the regulations and code requirements specified in this Section, materials and equipment for the signaling systems shall conform to the latest standards and recommendations of the American Railway Engineering and Maintenance-of-Way Association (AREMA) Communication and Signal Manuals.
1.04 ABBREVIATIONS
Alstom Alstom Signaling Operation, LLC
1 These standards can be downloaded at https://www.sandag.org/index.asp?listbyclassid=33&fuseaction=publications.listbyclassid
34 42 00 - 4 AREMA American Railway Engineering and Maintenance-of-Way Association
CA MUTCD California Manual on Uniform Traffic Control Devices
CFR Code of Federal Regulations
CPUC California Public Utilities Commission
GCOR General Code of Operating Rules
ESD SANDAG/NCTD Joint Engineering Standard Drawings
GETSGS GE Transportation Systems, Inc. Global Signaling Division
GSI General Signals, Inc.
Hitachi Hitachi Rail STS
IBC International Building Code
MTS San Diego Metropolitan Transit System
NCTD North County Transit District
NEC National Electrical Code
NEG National Electric Gate Company
NEMA National Electrical Manufacturers Association
SANDAG San Diego Association of Governments
SDCRAA San Diego County Regional Airport Authority
Siemens Siemens Rail Automation
SDTI San Diego Trolley, Inc.
1.05 FAIL-SAFE DESIGN REQUIREMENTS
A. As used in these Special Provisions, the fail-safe principle shall mean that whenever an equipment failure, human error or failure to act, or adverse environmental condition affects the specified operation of a system involved with the safety of life or property, that system shall revert to a state known to be safe.
B. Failure of a circuit or equipment that results in an indication of a dangerous or restrictive condition, whether or not there is in fact actual danger, shall have met the
34 42 00 - 5 fail-safe requirements. Conversely, a failure that results in an indication of safe or nonrestrictive condition when, in fact, a dangerous condition may exist, shall not have met the fail-safe requirements.
C. Equipment failures and conditions that shall be considered in producing a fail-safe design shall include, but not be limited to:
1. Relays (non-vital). Open coil, fused contacts, high contact resistance, shorted coil, armature sticking, contacts sticking, or broken spring.
2. Relay (vital or safety as defined by AREMA). Open coil, shorted coil, or high contact resistance.
3. Transformers. Open primary, open secondary, shorted turns, primary-to-secondary shorts, or combinations thereof.
4. Capacitors. Short, open, or leakage.
5. Resistors. Increase or decrease in resistance.
6. Transistors. Short, open leakage, or loss of Beta.
7. Diodes. Short, open, or reverse leakage.
8. Coils. Open or shorted turns.
9. Loss or degradation of power sources.
10. Appearance of abnormal signal levels, electrical noise levels, frequencies, and delays.
11. Effects of electrical interference.
12. Absent or abnormal input signals.
13. Opens or shorts in internal circuitry at inputs and at outputs.
14. Mechanical vibration or shock.
15. Drift or instability of amplifiers, receivers, transmitters, oscillators, switching circuits, and power supplies.
16. Deterioration of contacts, connectors, terminals, solder connections, printed circuits, circuit adjusting devices, and mechanical devices.
D. Fail-safe equipment proposed for vital signaling applications under this Contract must have been proven with 5 years of successful rail service operation in the United States of America.
34 42 00 - 6 1.06 QUALIFICATIONS OF SIGNALING PERSONNEL
A. Key employees of the Contractor engaged in the final adjustment and testing of the various signaling systems shall be qualified and have had experience on an operating railroad in the type and level of signal installation and testing work required herein.
B. The Contractor’s signaling construction forces shall work under the supervision and direction of an approved signal engineer at any time that signal work is being performed under this contract. The Contractor’s signal engineer shall oversee the installation, adjustment and testing of signal related work. The Contractor’s signal engineer shall coordinate signal work with related civil construction work, NCTD and MTS. The Contractor's signal engineer shall be on-site whenever signal work is in progress on the railroad right-of-way. Whenever civil construction activities have the potential to disrupt in-service signal systems, the Contractor’s signal engineer shall either be on-site, or at a minimum, be readily available to support the work. Readily available shall be interpreted to mean that the signal engineer can be on-site within approximately 1 hour.
C. The Contractor’s signal engineer shall direct and certify the successful completion of all tests on signaling equipment and systems prior to releasing the systems for operation. It is the responsibility of the Contractor's signal engineer to ensure that all applicable test documentation is completed prior to, or immediately after, in-service testing is completed.
D. The Contractor's proposed signal engineer shall demonstrate experience in the philosophy, application, and testing requirements of the various signaling systems. The Contractor’s proposed signal engineer shall have a minimum of 10 years signal supervisory or management experience on a Class I railroad or major commuter rail system. The Contractor shall provide documentation the proposed signal engineer meets the requirements of this Special Provision. The proposed signal engineer shall also demonstrate knowledge of the governing General Code of Operating Rules, including CPUC and FRA rules and regulations. This demonstration shall be by interview of the proposed signal engineer by the Representative prior to commencement of any work within the railroad right-of-way. The Contractor shall propose alternate personnel if the original candidate is found to be unacceptable. No work within the railroad right-of-way shall begin prior to the Contractor providing a signal engineer who meets the requirements of these Special Provisions.
E. All Contractor field personnel must receive, at a minimum, NCTD and MTS Roadway Worker Protection (RWP) training that shall include a thorough briefing in the rules of conduct in work areas where moving trains may be present. No work shall be performed on operating signal systems or appliances without an NCTD and MTS signal representative being present.
F. Any Contractor personnel found to be acting in violation of railroad safety operating rules and regulations will be barred from the work site.
34 42 00 - 7 1.07 SUBMITTALS
A. Contractor shall submit product information, references, and test data as detailed in the relevant Special Provisions and Drawings for all equipment proposed.
B. The minimum submittal requirement for any material provided is a manufacturer’s catalog cut showing ordering information and basic specifications.
C. Submittals shall be made in accordance with Special Conditions Section 1D-09, Submittals. No work shall be undertaken without the prior approval of the Representative.
D. The Contractor shall submit to the Representative for review and comment the following; proposed design changes, plans, procedures, data sheets of proposed material, installation details, shop drawings, mechanical drawings, proofs of compliance with applicable standards, and any other pertinent data required to fully demonstrate the Contractor's proposed plan for the manufacture, installation, testing and maintenance of the various signaling systems. The Contractor shall provide submittals as indicated in the applicable Special Provision sections.
E. The Contractor shall submit a detailed cutover test plan in accordance with Special Provision Section 34 42 60 3.03 D for all systems a minimum of 60 Days in advance of placing the systems in service. These test plans shall reflect the latest revisions and changes accepted by the Representative and made as a result of field checks and conditions. Contractor shall not proceed with the cutover or in-service testing until the test plans have been accepted by the Representative.
F. The Contractor shall prepare and submit a Signaling Construction Sequencing Plan for each location where a signal system is to be modified, installed, or removed. The plan shall, as a minimum, contain the following:
1. A narrative description of the work to be undertaken at the designated location.
2. A step-by-step sequence of work description which identifies those steps during which the existing system will be disabled, and a description of what steps will be taken to ensure that the signal system will be tested and returned to full operation without causing a delay to any train movement.
3. An hour by hour schedule to complete the critical steps as specified in the Signaling Construction Sequencing Plan.
G. Revisions to existing circuit plans shall use the "Red In"/"Yellow Out" convention.
H. Manufacturers' warranties and guarantees furnished for materials used in the work, instruction sheets, and part lists supplied with materials, shall be delivered to the
34 42 00 - 8 Representative prior to acceptance of the project. All equipment, material warranties, and guarantees shall cover parts and labor for two years from the date the equipment is "placed in service".
G. After the system or sub-system is placed in service and before Contract acceptance, the Contractor shall submit as-built documentation as follows:
1. Two (2) copies of the Drawings within 3 Days using the “Red In/Yellow Out” convention. An additional copy shall be placed in the associated instrument shelter(s) immediately following in-service testing.
I. 49 CFR Part 228 and Part 219 Compliance
1. Prior to any signal installation work being performed, the Contractor shall submit a list of employees that have successfully completed the pre- employment testing requirements and are in the random testing pool as outlined in the Contractor’s FRA accepted Control of Drug and Alcohol Use policy. Individuals providing “covered service”, as defined in Part 228, are subject to the Hours Of Service (HOS) restrictions specified in Part 228 and the pre-employment and random drug testing requirements in Part 219. The Contractor’s, and/or Subcontractor’s, employees that install, repair or maintain railroad signal systems provide “covered service”. For this contract “installing signal systems” shall include any work involving the placement or testing of a device, apparatus, or associated component utilized specifically in support of the railroad signal and highway grade crossing warning systems or subsystems. Examples of such devices, apparatus, and components shall include, but are not limited to; wire, cables, track wires, instrument enclosures, any component within an enclosure, wayside signal, switch machine, switch circuit controller, electric switch lock, switch layout, Automatic Train Stop, cable/wire termination box, ground/surge protection system, highway grade crossing warning device/component, termination shunt, and rail bond.
2. Only those individuals that have completed the pre-employment testing and are in the random testing pool will be allowed to perform signal installation work. The Contractor shall update the list of “qualified employees” as personnel are added or removed. The Representative shall perform routine audits of employees to ensure compliance with this provision. Any person performing signal installation work and has not completed the pre- employment testing or is not in the testing pool shall be removed from the project and will not be allowed to return.
3. The Contractor is responsible for compliance with 49 CFR Part 228. Contractor shall submit to the Representative HOS records for each employee or subcontractor’s employee that provides “covered service”. A separate report form shall be submitted for each employee. The report shall cover the work performed in a single calendar month and shall be
34 42 00 - 9 submitted to the Representative within five (5) Days of the end of the reporting month. Report forms shall contain the required information specified in 49 CFR Part 228 for a “signal employee”. The Contractor shall be responsible for reporting any excess service as required by 49 CFR Part 228. The Contractor shall provide the Representative with a copy of the excess HOS report within 48 hours of the occurrence.
1.08 AS-BUILT DOCUMENTATION
A. The as-built drawing sets shall be annotated to show all approved circuiting and wiring changes made during installation and testing of the location prior to placing it in service, and any approved changes made after placement in service. All changes shall be clearly identified on the drawings using the "Red In"/"Yellow Out" convention, and shall be dated and initialed by the Contractor's responsible signal engineer and the construction management signal inspector. The date that the location was tested and placed in service shall be identified in the revision block of the drawings.
B. The as-built drawings shall be bound as a set and shall be kept in the instrument enclosure at a location and manner accepted by the Representative. As-built drawings shall be clean and legible. The as-built drawings shall not be removed from the field location after the location is placed in service without the prior written approval of the Representative.
C. Each circuit that continues on another drawing shall be annotated with drawing number and routing information for the continuation of the circuit.
D. The as-built drawings shall show all individual circuits. Typical circuits will not be accepted.
E. The location plans shall show all cable installed with the number of conductors, the size of conductors, the type of cable, termination points of conductors, and the circuit on each conductor. Separate cable plans shall be drawn if cable information cannot be shown in a neat and organized manner on the location plans.
F. The shop drawings shall be detailed equipment drawings for each type of equipment installed.
1.09 DISPOSAL OF RETIRED EQUIPMENT
A. All NCTD signal material that is removed from service shall be returned to NCTD or scrapped at NCTD’s discretion.
B. All MTS signal material that is removed from service shall be returned to SDTI at an approved site or scrapped at SDTI’s discretion.
PART 2 - PRODUCTS
34 42 00 - 10 2.01 EQUIPMENT - GENERAL
A. All materials and equipment for installation and for interconnection of the various signaling systems shall be fabricated, furnished, and installed as indicated on the Drawings and specified herein. Signaling materials and equipment shall be the products of manufacturers regularly engaged in the production of such material and equipment and shall be the manufacturer's latest design. The materials and equipment shall have shown proven performance in North America for a minimum of 5 years. Materials and equipment shall be delivered to the jobsite in unbroken packages, reels, or other forms of containers.
B. All materials and equipment provided by the Contractor shall be new. All materials and equipment shall conform to the recommendations of AREMA Signal Manual, except as modified in the Special Provisions and Drawings.
C. Reference to specific equipment and/or manufacturers is intended to establish quality, overall design and fit, subject to compliance with all criteria specifications. Certain equipment shown in the Drawings and indicated in the Special Provisions must be installed to ensure compatibility with the existing system. Equipment equal to, or exceeding the Special Provisions and requirements may be used subject to the Representative's written acceptance. Should alternate equipment be accepted, the Contractor shall perform all necessary work to fit the alternate equipment to these Special Provisions and to revise the Drawings at no additional cost to Airport Authority.
2.02 EQUIPMENT - ENVIRONMENTAL PARAMETERS
A. All Contractor provided material and equipment shall be fully operable with no impairment resulting from the effect of the environment throughout the range of worst values indicated below. The general operating environment shall be considered to be in salty atmosphere and in generally sunny weather.
B. Ambient outdoor temperature range: from negative 32 degrees C to plus 70 degrees C.
C. Relative humidity range: from 0 to 100 percent.
D. Maximum rainfall: 4 inches in 24 hours and 1.5 inches in 1 hour.
E. Maximum wind velocity: 100 miles per hour.
F. The project is in Seismic Zone 4 as defined in the “Uniform Building Code.”
G. Isokeraunic level: five per year.
PART 3 - EXECUTION
34 42 00 - 11 3.01 INSTALLATION
A. Contractor shall make all necessary modifications to the existing signal system, protect or relocate existing cabling and signal equipment to ensure the existing signal system operates as intended during construction. Contractor shall take all measures necessary to protect operating train control and highway grade crossing systems to ensure train operations are not interrupted and the intended level of safety is maintained.
B. Contractor shall take no action which will violate any rule or regulation as specified by CFR 49, the General Code of Operating Rules, timetable instructions, general order, bulletin, or special instruction; which will reduce the integrity of the signal system; or endanger railroad personnel, the public, or employees.
C. Contractor shall perform all work in accordance with applicable SANDAG/NCTD/SDTI Engineering Standard Drawings approved for use on date of Notice to Proceed.
D. Existing systems shall be changed over to the new systems as expeditiously as practicable. Contractor shall be responsible for providing alternate grade crossing warning during cut-over at the crossing and other protection for vehicular and pedestrian traffic. Alternate grade crossing warning shall conform to CFR 49, Part 234 and local regulations.
E. At all times an updated set of the approved signal system detail design drawings shall be kept at the field location for equipment placed in service.
PART 4 - MEASUREMENT AND PAYMENT
A. Full compensation for GENERAL SIGNALING REQUIREMENTS shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor. Full compensation for Section 34 42 00 GENERAL SIGNALING REQUIREMENTS shall be considered as included in the contract price paid for the various bid items and no additional compensation will be allowed therefor.
END OF SECTION
34 42 00 - 12 SPECIAL PROVISIONS
DIVISIONS 34 – TRANSPORTATION SECTION 34 42 12 – WAYSIDE CONTROLLER
PART 1 - GENERAL
1.01 DESCRIPTION
A. Testing and commissioning a vital microprocessor-based wayside controller that provides the functionality as shown on the Drawings. (MTS only).
1.02 RELATED WORK
A. Section 34 42 00 GENERAL SIGNAL REQUIREMENTS
B. Section 34 42 30 RELAYS
C. Section 34 42 36 MISCELLANEOUS PRODUCTS
D. Section 34 42 37 SIGNAL WIRE AND CABLE
E. Section 34 42 60 TESTING
F. Section 34 42 70 GRADE CROSSING WARNING SYSTEMS
1.03 QUALITY ASSURANCE
A. The Contractor shall test and commission new site-specific application software for existing wayside controller(s) in MTS enclosure(s) as shown on the Drawings.
PART 2 - PRODUCTS
Not Used.
PART 3 - EXECUTION
3.01 APPLICATION LOGIC
A. The Contractor’s signal engineer shall develop site-specific application software for the MTS wayside controller(s). Prior to furnishing the software, the Contractor’s signal engineer shall perform “rack-testing” of the software. Upon completion of
34 42 12 - 1 the “rack-testing”, the Contractor’s signal engineer shall certify, in writing, that the software is acceptable for installation. The Contractor’s signal engineer shall then load the software at the actual site and pretest the location to ensure reliable, safe performance and integrity. The Airport Authority shall not be responsible for any work delays that may result from software modifications made during final in- service testing and commissioning by the Contractor.
B. Contractor shall have verified the site-specific application software for intended operation through “pre-testing” activities using available work windows prior to the final in-service test. The purpose of this activity is to prove integrated system operation and vital links between all affected locations.
3.02 INSTALLATION
A. Contractor shall ensure that the most current version of approved firmware used within the wayside controller.
B. The Contractor shall provide warranty from defective firmware and application software for two years from the first date of service. This shall include all updates and enhancements to the original software provided.
3.03 TESTING
A. The Contractor shall install and perform all applicable tests in accordance with Testing Section 34 42 60 to ensure that the wayside controller software has been installed and made operational as part of the signal system. Verification of such tests made shall be provided to the Representative.
B. The Contractor shall conduct tests as specified in AREMA Signal Manual Parts 2.4.1, 3.3.1 and 7.4.1, to ensure proper operation of the signal system(s).
C. The Contractor shall conduct tests to ensure that the signal system conforms to CFR 49, Part 236.
D. The Contractor shall provide the Representative with copies of all test reports and certify that all applicable tests have been made. This information shall be submitted to the Representative within ten Days of placing new systems in-service.
PART 4 - MEASUREMENT AND PAYMENT
A. Full compensation for WAYSIDE CONTROLLER shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor. .
34 42 12 - 2 END OF SECTION
34 42 12 - 3 SPECIAL PROVISIONS
DIVISIONS 34 – TRANSPORTATION SECTION 34 42 30 – RELAYS
PART 1 - GENERAL
1.01 DESCRIPTION
A. Work Includes: Furnishing and installing all required relays. Unless otherwise indicated on the Drawings, relays shall be the plug-in type. Relays of each type shall be uniform in design and contact assembly.
1.02 RELATED WORK
A. Section 34 42 00 GENERAL SIGNALING REQUIREMENTS
B. Section 34 42 36 MISCELLANEOUS PRODUCTS
C. Section 34 42 37 SIGNAL WIRE AND CABLE
D. Section 34 42 60 TESTING
E. Section 34 42 70 GRADE CROSSING WARNING SYSTEMS
1.03 QUALITY ASSURANCE
A. Vital relays shall meet the requirements of American Railway Engineering and Maintenance-of-Way Association (AREMA) Signal Manual Part 6.2.1, where the requirements of the AREMA Specifications do not conflict with any requirements specified herein.
B. Factory testing of each relay shall be the manufacturer's standard. Relays removed from existing facilities shall be tested prior to returning to service.
C. Before any relay is used, the Representative's written acceptance shall be obtained. Acceptance will be based on the test results and the proper completion of the applicable NCTD or MTS Test Forms.
1.04 SUBMITTALS
A. Product Data: Contractor shall submit relay specifications, any special mounting or supporting arrangements, and contact stacking arrangements, for all relay types to be furnished under this Contract in accordance with Special Conditions Section 1D-09, Submittals. Include any arc suppression where required.
34 42 30 - 1 1. SANDAG/NCTD Joint Engineering Standard Drawings (ESD) ESD-8110 and ESD-81201 indicates acceptable relays in use. If the Contractor proposes use of alternate relays not listed in the ESD’s, and those alternate relays have been approved by the Airport representative, the Contractor shall submit manuals with comprehensive descriptions and illustrations of each type of alternate relay provided. Contractor shall provide one copy of manuals, specifications, and calibration sheets for each type of alternate relay furnished.
B. Test Forms: NCTD and MTS test forms shall be completed (respectively) for each vital relay furnished under this Contract. The use of type-written characters shall be used to fill in all information requested on the form.
C. Samples: Sample relay identification tag, including method of mounting proposed.
D. Manufacturer’s Test Results: Contractor shall provide manufacturer factory test results for relays.
1.05 DELIVERY, STORAGE, AND HANDLING
A. Vital relays shall be shipped separately from the wired racks in which they are to be used. Relays shall be packaged individually, each in a sturdy corrugated cardboard carton with the drawing number of the relay printed on the outside of the carton. Relays shall be stored in a protected area until tested and installed.
PART 2 - PRODUCTS
2.01 GENERAL
A. Relays and equipment specified shall be capable of rated performance through an operating temperature range of minus 40 degrees F to plus 160 degrees F.
B. Relays shall be in dustproof enclosures, except a provision shall be made for ventilation where required, for heat dissipation.
2.02 VITAL DC RELAYS
A. General:
1. Vital Relays shall be Alstom Type B or Siemens Type "ST", or equal. Vital Timer Relay shall be Hitachi PN-150EVT, or equal. Contractor shall use the specific relays shown on the Drawings.
1 These are part of the 2020 SANDAG Engineering Standard Drawings which can be downloaded here: https://www.sandag.org/index.asp?listbyclassid=33&fuseaction=publications.listbyclassid
34 42 30 - 2 2. Vital DC relays, unless otherwise indicated on the Drawings, shall be of the plug-in type and rack-mounted. Relays shall have a transparent dust cover made of a nonflammable composition that will not support combustion.
3. Vital relays, with a nominal operating voltage of 10 to 16 volts, shall be capable of operating continuously without resultant damage, with a minimum voltage range of 7 to 21 volts inclusive, applied to their operating circuits.
4. Vital relays shall have a test terminal to allow convenient measurement of the coil voltage.
5. Biased neutral vital relays shall be designed so that gravity alone will prevent the armature from picking up if the permanent magnet is de-energized or if no current is applied to the coil, due to interruption of the normal magnetic circuit.
6. All front contacts shall be silver-to-metalized carbon, meeting the requirements of the AREMA Signal Manual Part 6.2.1.
7. When three DC vital relays, suppressed as specified herein, are connected in parallel and operated as a test load from normal working voltage, a vital relay front or back contact that breaks this load shall be capable of at least five million operations at this load without the contact resistance, measured with ten milliamp current, exceeding five ohms.
8. Arc suppression for vital relays shall be built into the relay or into its plugboard.
9. Vital plug-in relays, except vital time-element relays and special application relays, shall be equipped with front current testing facilities. Where required by the Representative and as shown on the Drawings, facilities shall be provided to enable the testing of voltage from the front of the relay, without having to remove the relay or remove adjacent relays.
10. Vital relays shall be equipped with a registration plate to prevent relays of the wrong style, contact arrangement, or operating characteristics, from being inserted into the plugboard.
11. Flasher relays shall conform to AREMA Signal Manual Part 6.1.45.
2.03 VITAL DC RELAY PLUG-BOARDS
A. Plug-boards shall be designed for insertion of removable type contacts. The method of attaching the wires to the removable contacts shall be solderless connections. The plug-board shall be designed so that the removable contact will have a direct connection with the contact and coil prongs. The plug-boards shall
34 42 30 - 3 be in accordance with the applicable sections of AREMA Signal Manual, Part 6.2.1.
2.04 IDENTIFICATION
A. Facilities shall be included for mounting an approved typed or printed relay name tag for each relay, either on the relay cover or on the relay cabinet front plate, as applicable. The name tag shall be easily replaceable, but shall not come off during normal service.
B. Identification shall be in accordance with Special Provision Section 34 42 36 MISCELLANEOUS PRODUCTS.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Contractor shall ensure that all AC and DC power busses are open while installing relays. Busses shall not be reconnected until all relays have been installed.
B. Contractor shall install and wire the relays as shown on the Drawings.
3.02 TESTING
A. All DC vital relays shall be factory tested and inspected in accordance with AREMA Signal Manual Part 6.4.1.
B. Perform tests in accordance with Special Provision Section 34 42 60 TESTING. These tests shall be performed at the housing locations after the house has been set.
C. Test measurements shall be recorded on the applicable NCTD or MTS prescribed forms.
PART 4 - MEASUREMENT AND PAYMENT
A. Full compensation for RELAYS shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor.
END OF SECTION 34 42 30
34 42 30 - 4 SPECIAL PROVISIONS
DIVISION 34 - TRANSPORTATION SECTION 34 42 36 – MISCELLANEOUS PRODUCTS
PART 1 - GENERAL
1.01 DESCRIPTION
A. Work Includes: Furnishing miscellaneous components and products to be used on this Contract.
1.02 RELATED WORK
A. Section 34 42 00 - GENERAL SIGNALING REQUIREMENTS
B. Section 34 42 37 - SIGNAL WIRE AND CABLE
C. Section 34 42 60 - TESTING
D. Section 34 42 70 - GRADE CROSSING WARNING SYSTEMS
1.03 QUALITY ASSURANCE
A. All miscellaneous components and products used on this Contract shall be:
1. New and free of manufacturing defects.
2. Clearly and permanently labeled with value or type identification.
B. All electrical components shall be rated to operate at power, voltage, current, and temperature levels exceeding by 20 percent those that the components will be subject to in service, unless otherwise specified herein.
1.04 SUBMITTALS
A. Product Data: Manufacturer's catalog cuts, material descriptions, specifications, and other data pertinent to the miscellaneous products required.
B. Samples of solderless terminals conforming to article 2.06 A herein.
104205 34 42 36-1 PART 2 - PRODUCTS
2.01 SIGNAL TERMINAL BLOCKS
A. Signal system terminal blocks shall be in accordance with the applicable requirements of American Railway Engineering and Maintenance-of-Way Association (AREMA) Signal Manual Part 14.1.5.
2.02 TERMINAL BINDING POSTS
A. Signal system terminal binding posts shall be in accordance with the applicable requirements of AREMA Signal Manual Part 14.1.10.
2.03 TERMINAL POST INSULATORS
A. All terminal posts, located on terminal boards in the wayside cases, signal instrument shelters used to terminate 50V, or greater, AC or DC circuits shall be provided with a protective insulator.
B. The type of insulator shall be individual for each terminal post, and shall be fire-resistant.
2.04 INSULATED TEST LINK
A. Insulated test links shall be installed as shown in the Drawings and in accordance with ESD-8210, as applicable, and shall be in accordance with the applicable requirements of AREMA Signal Manual Part 14.1.15. Insulated test links allow for open and closed circuit tests to be performed without disturbing connections on either side of the circuit and provide a convenient means to open and close a circuit for testing purposes.
2.05 LIGHTNING ARRESTERS AND EQUALIZERS
A. Lightning arresters and equalizers shall be mounted on accepted type base and shall be in accordance with AREMA Signal Manual Part 11.3.1. Lighting arresters shall be designed to have a DC breakdown voltage of 1,000 volts or lower and shall have a maximum impulse sparkover voltage not exceeding 2,000 volts peak for an impulse with a 10 kilovolt per microsecond risetime. Equalizers shall have a minimum resistance of 1,000 ohms at the rated circuit voltage. Equalizers shall be designed to have a DC breakdown voltage of 250 volts or lower and shall have a maximum impulse sparkover voltage not exceeding 1000 volts peak for an impulse with a 10 kilovolt per microsecond risetime.
2.06 TERMINALS FOR WIRES AND CABLES
A. All solderless terminals shall be in accordance with the AREMA Signal Manual, Part 14.1.1, unless otherwise specified herein.
104205 34 42 36-2 B. Terminals shall be of the solderless crimp-on type. Samples of all solderless terminals shall be submitted for approval.
C. All stranded copper wire shall be fitted with an approved type of terminal at all points where the wires are to be terminated on terminal binding posts.
D. The terminating means shall be of the following types:
1. A ring-tongue flat terminal together with slip-on nylon post insulator for terminating wires larger than No. 14 AWG to a maximum diameter over the insulation of 0.40 inch. ring-tongue flat terminals shall facilitate easy wire insertion and shall be resistive to corrosion. Insulation provided with terminals shall provide high dielectric strength. Terminals shall have brazed seam to prevent pinched wires and shall have serrations or dimples inside the wire barrel to provide optimum tensile strength and maximum electrical contact area after crimping.
2. A diamond grip ring nylon insulated wire terminal shall be used for terminating other stranded wires, No. 20 and No. 18 AWG, having maximum diameter of 0.125 inch. Terminals shall facilitate easy wire insertion and shall be resistive to corrosion. Insulation provided with terminals shall provide high dielectric strength. Terminals shall meet or exceed the requirements of MIL-T-7928, Type II, Class 1 and 2 and shall be fitted with red insulation.
E. The terminals shall be for attaching to the ends of the conductor in such a manner that the flexibility of the conductor will not be destroyed and the possibility of breakage at the terminal will be reduced to a minimum.
F. Terminals shall be for attaching to the wire with a tool made by the manufacturer of the terminal and recommended by the manufacturer for the terminals being furnished.
G. The tool shall be equipped with a ratchet device to ensure proper indentation of the terminal, which will not release until proper indentation is complete.
2.07 TAGGING FOR CABLES, WIRES, AND EQUIPMENT
A. Except as otherwise specified in this Section, both ends of each cable, each cable wire, and all single wires that terminate in the junction boxes, signal instrument shelters, on entrance racks, shelter and any equipment of the signal system outside of such locations shall be permanently identified with a tag. Tags shall be installed so that they may be read with a minimum of disturbance of the tags. Each conductor of the cable shall be rung out and identified before applying the tag. The wire tagging convention used shall be as shown on the Drawings.
B. Tags for wire and cable identification and for identification of all components shall meet the following requirements and shall be subject to the Representative's acceptance:
104205 34 42 36-3 1. Sleeve Type Tags:
Tags for identifying individual cable conductors and field-installed wires within the signal instrument shelters, wayside cases, switch mechanisms, switch layout junction boxes, base of signal junction boxes, and similar applications, shall be the sleeve type as manufactured by Raychem Corporation, Thermofit Marker System (TMS), or as manufactured by Brady, One-Sided Printable Permasleeve Wire Markers, or equal. The application of the conductor nomenclature shall be in accordance with the manufacturer's instructions and shall result in a permanently bonded and legible identification.
2. Flat Plastic Tags:
a. Tags for identification of terminals and other miscellaneous components within the signal instrument shelters, wayside cases, and outside terminal cases, shall be the flat plastic laminated type.
b. These tags shall be 1-1/2 inches long by 1/2-inch-wide. The untreated tag shall be milk white "vinylite", or equal.
c. The identifying nomenclature space shall allow for two rows of lettering, and the tag material shall be capable of receiving typed-on characters by conventional means. The height of the lettering shall not be less than 1/8 inch.
d. After lettering, both the face and back side of the tag shall be covered with a clear plastic coating, "vinylite", __ or equal.
e. Wrap-around tags: Tags for identification of the individual wires of plug-in relays, within the signal instrument shelter, and the wayside cases shall be the wrap-around, self-adhesive type.
2.08 HARDWARE
Mounting hardware exposed to the elements and used for signal equipment, cases, conduit, hangers, brackets, clamps, etc., shall be hot-dip galvanized, except as otherwise accepted by the Representative.
A. Galvanizing:
1. The hot-dip process of galvanizing shall be used. All parts shall be picked so that all scale and adhering impurities are removed. The zinc coating shall be of commercially pure zinc, and shall be continuous and thorough. It shall not scale, blister, or be removable by any of the processes of handling or installation. The finished surface shall be free from fine line cracks, holes, or other indications of faulty galvanizing. It shall be smooth and free from
104205 34 42 36-4 adhering flux and other impurities. The edges and ends of parts shall be free from lumps and globules. Parts shall be coated with at least two ounces of zinc per square foot of galvanized surface, after all bending, cutting, drilling, and final fabrication.
2. In order to avoid destruction of resilience encountered in the hot-dip process of galvanizing, all lock-washers shall be cadmium plated.
2.09 CONDUIT
A. Rigid: Rigid conduit shall be used at locations as specified herein and as shown on the approved Drawings. The types of rigid conduit to be used for the various applications shall be as follows:
1. Polyvinyl Chloride (PVC) Conduit: Thick wall polyvinyl chloride conduit, High Impact Schedule 80, herein referred to as PVC conduit, shall be furnished for installation under ballast outdoors, and wherever conduit is to be installed under the trackway or roadway, at locations where conduit has not been provided by others as herein specified. Where elbows are used, they shall be the long radius type.
B. Flexible Conduit:
1. Flexible conduit, as required in the specifications and on the approved Shop Drawings, shall be liquid-tight flexible conduit. The liquid-tight conduit shall be fabricated with a moisture and oil proof PVC jacket extruding over galvanized steel flexible conduit bendable to small radii.
C. Fittings:
1. Approved fittings for PVC conduit shall be used.
2. Fittings for rigid steel conduit shall be of cast malleable iron and shall be protected by hot-dip galvanizing.
3. Fittings used in conjunction with flexible liquid-tight conduit shall be design for use with such conduit. Fittings shall be galvanized, made of stainless steel, or otherwise constructed to resist rust or corrosion from exposure to salt air.
2.10 PADLOCKS
A. If applicable, NCTD and MTS will provide signal maintenance padlocks. The Contractor shall provide temporary padlocks until such time the equipment is placed in-service.
2.11 SEALING COMPOUND
104205 34 42 36-5 A. Sealing compound for use in sealing cable entrances shall be in accordance with AREMA Signal Manual Part 15.2.15.
2.12 ENVIRONMENTAL PROTECTION
A. Protection, as hereinafter specified for machine-finished surfaces, threaded rods, nuts, and other parts that are susceptible to rusting or corroding, shall be a corroding preventive compound similar to that currently used by signal maintenance forces. The product must have sufficient body to resist weather and rusting for at least 6 months. Two gallons or equivalent weight shall be furnished by the Contractor.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Material and apparatus specified herein shall be installed in accordance with the details of respective Special Provisions, manufacturer's recommendations, and in accordance with the Contractor's accepted installation drawings.
PART 4 - MEASUREMENT AND PAYMENT
4.01 MEASUREMENT AND PAYMENT
A. Full compensation for MISCELLANEOUS PRODUCTS shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor. .
END OF SECTION 34 42 36
104205 34 42 36-6 SPECIAL PROVISIONS
DIVISION 34 – TRANSPORTATION
SECTION 34 42 37 – SIGNAL WIRE AND CABLE
PART 1 - GENERAL
1.01 WORK INCLUDED
A. Furnishing and installing all cable and wire required for signal, and signal power system wiring to warning devices, junction boxes, and factory wired mechanisms.
B. Material and workmanship shall be of the highest quality, assuring durability for minimum life expectancy of 40 years. Cables to be furnished and installed shall be suitable for use in the environment to be encountered on a railroad signal system and shall be certified for continuous operation at 75 C, in wet or dry locations, with no conductor failing in continuity or with loss of insulation to cross or ground less than one meg-ohm.
C. Cables shall be furnished and installed as specified herein and as shown on the approved Drawings.
D. Should existing local cabling be damaged or unable to be reused as indicated in the Drawings, Contractor shall furnish and install all new cabling to relocated warning devices.
1.02 RELATED WORK
A. Section 34 42 00 - GENERAL SIGNALING REQUIREMENTS
B. Section 34 42 12 - WAYSIDE CONTROLLER
C. Section 34 42 30 - RELAYS
B. Section 34 42 60 - TESTING
C. Section 34 42 70 - GRADE CROSSING WARNING SYSTEMS
1.03 QUALITY ASSURANCE
A. Cable manufacturer's qualifications shall be as follows:
1. Past Performance and Experience: Demonstrated previous successful experience in supplying cable to the railway or transit industry for use as vital signal control cables. A list of such installations shall be provided for each cable manufacturer to be considered.
104205 34 42 37-1 2. Quality Assurance Program: The manufacturing of cables shall be accomplished in compliance with a Quality Assurance Program that meets the standard of care in the industry.
1.04 SUBMITTALS
A. Product Data: Manufacturer's catalog cuts, material descriptions, and specifications for each type of wire and cable the Contractor proposes to provide.
1.05 INSPECTION
A. The Representative shall have the right to make inspections and tests, as necessary, to determine if the cable meets the requirements of this Special Provision. The Representative shall have the right to reject cable that is defective in any respect.
B. The manufacturer shall provide, at the point of production, apparatus and labor for making any or all of the following tests:
1. Conductor size and physical characteristics.
2. Insulation HV and IR tests.
3. Physical dimension tests.
4. Special tests on materials in coverings.
5. Final HV, IR, and conductor resistance tests on shipping reels.
6. Factory tests shall be submitted with the shipping of cable.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Shipping, storage, and handling shall be in accordance with American Railway Engineering and Maintenance-of-Way Association (AREMA) Signal Manual, Part 10.4.1 and 10.3.17.
B. During storage and handling, prior to final conductor termination, cable ends shall be sealed to prevent the entrance of moisture.
C. Any instance of damaged cable observed at any time, whether prior to installation, occurring during construction, or discovered by test observation subsequent to installation, shall be immediately called to the Representative's attention. The method of correction shall be in accordance with the Representative's written instruction. The Contractor shall promptly repair such damage.
PART 2 - PRODUCTS
104205 34 42 37-2 2.01 INTERNAL WIRE AND CABLE
A. Individual cable make-up and conductor sizes shall be provided as shown on the approved Drawings.
B. Internal wire shall be black tefzel case wire in the gauge as shown on the Drawings. Internal case wire shall be #16 AWG unless otherwise indicated on the Drawings.
C. Unless otherwise specified herein, internal wire and cable shall conform to AREMA Signal Manual, Part 10.3.14:
1. Conductors shall be soft and annealed copper per ASTM B3 and tin coated in accordance with ASTM B33-94.
2. Stranded conductors shall be in accordance with ASTM B8, Class B.
D. Signal instrument shelter and case internal wire and cable insulation shall conform to AREMA Signal Manual Part 10.3.24, unless otherwise specified herein, and the following requirements:
1. Insulation shall be modified ethylene tetrafluoroethylene (ETFE) conforming to ASTM D3159, unless otherwise specified.
2. The minimum insulation rating shall be 600 volts.
2.02 EXTERNAL WIRE AND CABLE
A. General
1. Individual cable make-up and conductor sizes shall be as shown on the approved Drawings.
2. Conductors shall be soft or annealed copper per ASTM B3 and tin coated in accordance with ASTM B33-94.
3. Stranded conductors shall be in accordance with ASTM B8, Class B.
B. Direct Burial Cable
1. Cable to warning devices shall be Armored Underground Signal Cable.
2. Conductors number 6 and smaller shall be solid. Conductors number 4 and larger shall be stranded.
3. Cable shall be furnished with a 10-mil flat bronze tape between the conductors and the outer jacket, helically applied, and adequately cushioned from the conductors.
4. Unless otherwise specified herein, direct burial cable shall meet the
104205 34 42 37-3 requirements of AREMA Signal Manual, Part 10.3.17. Cable conductors shall be printed with a number for easy identification of the conductor. Conductor insulation shall be ethylene-propylene and cable jacket shall be made of polyethylene.
PART 3 - EXECUTION
3.01 CABLE INSTALLATION
A. General
1. The installation of wire and cable shall conform to AREMA Signal Manual Parts 10.4.1, 10.4.30, and 10.4.40, except as specified herein.
2. All external cables shall be direct buried or in conduit as shown on the approved work plans.
3. The Contractor shall separate signaling cables from parallel run of AC feeder cables, where adjacent locations are fed from one AC service location.
4. The Contractor shall provide 24 hour notice to the Representative prior to installing any cables.
5. Provide sufficient slack in cable conductors at all terminating posts to enable three terminations of the conductor, due to broken eyelets without re-servicing or re-potheading the cable.
6. In certain types of installation, the cable cannot be constrained; therefore, ample cable slack shall be provided for additional flexibility due to vibration of such equipment.
7. Cables shall not be bent to a radius less than manufacturer's recommendation.
8. Distribution cable runs shall be continuous without splices between cable terminating locations. Express cable runs longer than cable lengths shall be spliced together in junction box, instrument case, or other acceptable shelter.
9. Individual cable conductors shall be identified at each cable termination with plastic tags, as specified in Section 34 42 36. All spare conductors in each cable shall be identified and terminated.
10. Cable entrance openings in equipment enclosures and junction boxes shall be sealed with either compression type fitting or pliable sealing compound after the cable is in place. Sealing compound shall be used to seal the area
104205 34 42 37-4 around cable where the cable emerges from the end of a conduit or pipe. All spare conduits shall be sealed or plugged.
11. Wherever multiple conductor cables are terminated, the outer sheath of the cable shall be carefully removed to a minimum point of 3 inches from the cable entrance. At the end of the cable sheath or covering, two layers of plastic electrical tape shall be applied.
12. All cable conductors shall be terminated in conductor sequence from top to bottom.
13. Cable shields or sheaths shall be grounded at the entrance to signal shelters and shall float when terminated in field apparatus.
B. Underground Buried Installation
1. Under roadway cable shall be placed in 4-inch Sch. 80 PVC buried to a uniform minimum depth of 36 inches as measured from the finished grade to top of conduit.
2. Upon request, and only under extreme circumstances because of installation hardship, will installation of a cable be allowed to a depth of less than 36 inches, subject to the Representative's acceptance. The cable shall be protected in a manner acceptable to the Representative.
3. Whenever any signal cable is to pass under sidewalks, pavement or roadway it shall be the Contractor's responsibility to coordinate conduit placement with other contractors.
4. Where cable leaves the ground, it must be protected by a cable chute, sleeve, or other covering extending above the ground line. Top of such protective coverings shall be filled with a sealing compound.
5. Where buried cables enter a foundation, junction box, shelter or cases, a single slack coil in each cable shall be left in a trench below the foundation or pedestal. The coil diameter shall not be less than the cable manufacturers recommended bend radius or 5 ft. whichever is greater.
6. The potheading of buried cables shall be applied whenever cable is terminated in signal equipment, and such termination is within 2 feet of the grade level. This neoprene and seal pothead shall be installed in accordance with the manufacturer's instructions.
7. Cables shall not cross one another when they are pulled into a conduit or pipe, and care shall be taken not to have the conductors pulled tight or kinked in conduit fittings or boxes. All cables installed in a conduit or pipe shall be pulled and installed simultaneously. Contractor shall monitor pulling tension, using
104205 34 42 37-5 a device designed for such use, and shall not exceed manufacturer’s recommended maximum pulling tension.
8. Cables, track wire, and conduits shall be installed per approved Drawings and backfilled per the Division 31, Earthwork sections unless otherwise specified herein. Material used in backfilling trenches with cables and track wires shall be free of rocks with a diameter greater than 2 inches.
C. Special Protection
1. Provide appropriate special protection for cables in areas where the cables are unavoidably exposed to hazardous conditions, such as vibration or sharp corners on equipment. The Contractor shall be responsible for replacing, at no additional cost to the Airport Authority, any cable that is installed but subsequently damaged prior to acceptance as a result of the Contractor's failure to provide such special protection.
3.02 TESTING
A. All installed external cable shall be tested in accordance with the requirements of Section 34 42 60 and AREMA Signal Manual, Part 10.4.30.
PART 4 - MEASUREMENT AND PAYMENT
4.01 MEASUREMENT AND PAYMENT
A. Full compensation for SIGNAL WIRE AND CABLE shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor. .
END OF SECTION 34 42 37
104205 34 42 37-6 SPECIAL PROVISIONS
DIVISIONS 34 – TRANSPORTATION SECTION 34 42 60 – TESTING
PART 1 - GENERAL
1.01 DESCRIPTION
A. Work includes: Tests and inspections to demonstrate that systems, subsystems, assemblies, subassemblies, and components supplied under this Contract are in compliance with these Special Provisions.
B. Tests and inspections shall be made both during the progress of this Contract and after completing installation of equipment and shall consist of factory tests, circuit breakdown tests, wiring verification tests, continuity tests, resistance tests, voltage and current tests, time tests, operating tests, and other electrical and mechanical tests and inspections.
C. Work shall include costs of the Contractor's personnel and any special equipment and assistance required to conduct all tests with complete documentation.
D. In the event that the system does not meet the Special Provision requirements, necessary corrections shall be made. Any and all tests or retests to prove compliance shall be included in the work, at no additional cost to the Airport Authority.
E. Work shall include all necessary test-purpose disconnecting and reconnecting.
F. Test work specified elsewhere in these Special Provisions shall be construed as related to and inclusive with the testing described herein.
G. All field tests shall be conducted with NCTD and MTS’s assistance, and shall be subject to their acceptance.
H. Any test, inspection, or adjustment not specified herein, that is recommended by a manufacturer or required to comply with a regulatory agency’s requirement, shall not relieve the Contractor from satisfactorily performing, executing, and completing such a test, inspection, or adjustment. Any such test shall be recorded on an appropriate form.
1.02 RELATED WORK
A. Section 01 89 30 RAILROAD RELATIONS
34 42 60 - 1 B. Section 34 42 00 GENERAL SIGNALING REQUIREMENTS
C. Section 34 42 12 WAYSIDE CONTROLLER
D. Section 34 42 30 RELAYS
E. Section 34 42 37 SIGNAL WIRE AND CABLE
F. Section 34 42 70 GRADE CROSSING WARNING SYSTEMS
1.03 STANDARDS AND REGULATIONS
A. Standards – American Railway Engineering and Maintenance-of-Way Association (AREMA) Signal Manual, Part 2.4.1.
B. Regulations: Federal Railroad Administration (FRA), Rules, Standards and Instructions for Railroad Signal Systems, Part 234.
1.04 QUALITY ASSURANCE
A. Test and inspection procedures shall be subject to the Representative's acceptance and shall comply with all FRA rules and regulations.
B. Test equipment of proper type, capacity, range, and accuracy shall be supplied by the Contractor to perform required tests and inspections. This equipment shall be in good working order and properly calibrated at the time tests or inspections are conducted.
C. The Representative reserves the right to witness any or all tests and inspections in the Contractor's plants or other manufacturing facilities. The Representative shall be advised in writing at least 30 Days in advance of each factory test. When tests are to be conducted continuously as in a production-line routine, the Representative shall be advised in writing 30 Days in advance of the start of such tests; such notice shall indicate the duration period in which such tests will be conducted.
D. Accepted system and subsystem tests to demonstrate that the installation meets these Special Provisions shall be completed prior to any operational testing of systems or subsystems.
E. The Representative shall have the right to witness any or all field tests conducted. The Representative shall be notified in writing at least 48 hours prior to each field test. No part of the signal system shall be placed in service without the Representative and both NCTD and MTS being present and witnessing the in- service tests.
F. The work shall include all tests required to ensure proper and safe operation of all systems and subsystems and to prove the adequacy and acceptability of the total
34 42 60 - 2 installation specified herein. Tests to be performed shall cause each system and subsystem to be sequenced through its required operations, including imposition of simulated conditions to prove that the installation complies with all specified fail- safe requirements.
1.05 SUBMITTALS
Submit required items in accordance with Special Conditions Section 1D-09, Submittals.
A. Test Reports: Test submittals shall be provided for all phases of work including temporary and final construction. The following shall be submitted to the Representative for acceptance:
1. An outline of the tests to be performed on each type of component or unit, together with sample forms of test record forms and cards as hereinafter specified.
2. A line diagram showing the grouping and sequencing of system and subsystem tests showing both factory and field tests.
3. Cutover plan in accordance with 3.03 D of this Special Provision and submitted to the Representative a minimum of 60 Days prior to the scheduled cutover.
4. A test procedure for each phase shall be furnished to the Representative no later than 60 Days from the date of Notice to Proceed. No systems shall be modified and tested until the test procedure has been approved.
5. The results of each test as herein specified, shall be recorded and this test result documentation shall be furnished to the Representative within 10 Days of completion of the test. Certified test results shall also be furnished for tests performed by any subcontractors when such tests are required within these Special Provisions.
6. Test reports shall be checked and approved by the Contractor prior to submittal to the Representative.
7. Test reports shall be made when any test is completed and copies submitted to the Representative.
8. Test reports shall document the calibration date of each instrument used during the test. Calibration of each instrument shall be certified by a recognized testing facility. Certification shall be conducted every 6 months or less. Out-of-date instruments will be considered non-certified. Tests conducted with non-certified instruments will be rejected.
9. Any additional tests required by the Contractor to ensure the safe operation of the system shall be submitted to the Representative.
34 42 60 - 3 B. Certified Test Reports: Upon completion of all tests specified herein, submit a certified letter signed by an authorized representative of the accepted testing agency, certifying that all tests have been performed.
PART 2 - PRODUCTS
2.01 SITE TEST EQUIPMENT AND MATERIALS
A. Test instruments and equipment necessary to conduct the tests specified herein shall be available, ready for use not less than one week in advance of test need. "Ready for use" shall mean properly matched for test parameters, properly calibrated, sufficiently supplied with leads, probes, adapters, stands, etc., necessary to conduct the particular test in a completely professional manner.
2.02 TEMPORARY TEST MATERIALS
A. Temporary or interim test related materials, special tools, connections, jumpers, etc., shall be furnished and available not less than one week in advance of the test need.
PART 3 - EXECUTION
3.01 FACTORY TEST PROCEDURES
A. The Contractor shall confirm that all required factory tests of assemblies, subassemblies, and components supplied under this Contract have been performed.
B. Equipment shall be 100 percent inspected and tested.
C. Each component and unit shall be inspected at its point of manufacture and evidence of this inspection and acceptability shall be indicated on the item where practicable.
3.02 CUTOVER AND FIELD TEST PROCEDURES
Not all of the following tests may be applicable to this project. The Contractor shall incorporate the applicable tests in the work plan submitted to the Representative for approval.
A. Cutover and Field Test Procedures:
1. The bridging of contacts on relays, indicators or any circuit controlling device or energizing relays or indicators direct from any source, which will in any way impair the protection of such circuit controlling device must be done in accordance with the following instructions:
34 42 60 - 4 a. The use of jumpers for the bridging of contacts is restricted to cases of absolute necessity, such as a disarrangement of the signal system circuitry caused by damage or replacement and when the renewal of the track structure cannot be taken care of otherwise and then only to avoid unnecessary delay to trains. THE USE OF JUMPERS ALWAYS REQUIRES THAT THE PROTECTION DEFEATED BE PROVIDED BY SOME OTHER MEANS. Generally, jumpers must not be used in connection with ordinary maintenance or programmed work. It should NOT be necessary to energize a track relay or its repeater with jumpers for any reason.
2. When a condition arises, making it necessary to use jumpers on any of NCTD's territory, the following method will be required:
a. Before jumpers are applied, the NCTD representative requesting the application must give the pertinent information involved with their use to the Supervisor of Commuter Operations (SCO) at the Central Control Facility for the NCTD.
b. The SCO will record the information in order to assure proper handling.
c. Upon receiving permission from the SCO, the NCTD representative will notify the SCO of the time that the jumpers were applied.
d. The signal system involved cannot be restored to normal service until the SCO has been notified concerning the removal of jumpers and recorded the same.
3. When a condition arises, making it necessary to use jumpers or special wiring even if temporarily added for any reason on any of MTS’s territory, it shall be recorded on a log sheet indicating the circuit involved, the placement of the jumper or special wiring, the purpose for the change and when jumpers or special wiring are added and removed. Log sheet entries shall be signed by the Contractor’s Signal Engineer and a copy furnished to the Representative. All jumpers and temporary wiring shall be removed after the completion of the test and the removal noted on the log sheet. Temporary wiring shall be marked so as to be clearly distinguishable from permanent wiring.
B. The field tests performed shall cause each installed system and subsystem to be sequenced through its required operations, including the imposition of simulated conditions, to demonstrate that the installation complies with all specified fail-safe design requirements and operational functions.
C. The quality of installation shall be demonstrated by field tests for continuity, insulation resistance, resistance of ground connections, circuit breakdown, visual inspection and any other tests required by this Special Provision. These tests shall be performed prior to any operational testing of systems or subsystems.
34 42 60 - 5 D. The Contractor shall provide a cutover plan for all phases of work, including temporary modifications required to support track work and/or relocation of signal equipment in existing instrument shelters. The Contractor’s cutover plan shall be detailed providing step-by-step instructions to the individual directing the cutover. The plan shall include check-off lists and aspect charts that, upon review of the Representative, demonstrate that all required tests and inspections have been performed and that the system functions as intended.
E. The Representative shall evaluate the plan along with the Railroad. In accordance with the Contractor’s permit with the Railroads, the plan shall be modified to their satisfaction. In addition to the items described above, the cutover plan shall include the following:
1. The names of the Contractor’s personnel responsible for the cutover work at each location. The personnel shall be accepted by the Railroads in accordance with the Contractor’s permit with the Railroads. No cutover activities shall begin until accepted personnel are on site. The following is the minimum number of personnel that must be at a typical location during the entire cutover unless otherwise authorized by the Representative.
a. Highway Grade Crossing – One Signal Engineer, one Signal Technician, and two support persons placing shunts. In addition, if requested by the Representative, two GCOR qualified flag-persons to protect vehicular movements if warning devices are disabled and trains are operating without stopping at the crossing.
2. The Contractor’s Signal Technicians shall be experienced and knowledgeable of the FRA inspection, testing, and adjustment requirements of the equipment at the site. The Signal Engineer responsible for directing the cutover testing shall have no other responsibilities such as installing equipment, making equipment adjustments/calibrations, troubleshooting, etc. Support personnel shall be trained in the use of shunt test wires and have a thorough understanding of their duties.
3. The Cutover plans shall specify the test equipment that will be provided at each location. The test equipment specified shall remain at the site until the cutover testing is completed unless otherwise authorized by the Representative. At highway grade crossing locations the Contractor shall furnish two 0.06 Ohm shunt test cords and a multi-meter. If the location includes an electronic track circuit repeater the Contractor shall include a Peak Reading Track Meter. Contractor shall have available additional fuses for all equipment that exists or to be installed at each location.
4. All cutover personnel shall have a clear understanding of their duties and responsibilities. A cutover rehearsal shall be held with all cutover personnel no more than 7 Days and no less than 24 hours in advance of the cutover start time. Rehearsal shall include a tour of the cutover limits, access routes
34 42 60 - 6 to each site, tools and test equipment requirements at each site, and a demonstration of proper methods for placement of shunt test wires. In conjunction with the adjustment of constant warning time devices the 50% approach point, termination shunt and frequency shall be clearly marked on the rail. The associated frequency of existing termination shunts within the limits of the cutover shall also be marked on the rail.
The Contractor is responsible for developing a cutover communications system and protocols that meet the requirements of the Contract and the permit with the Railroads and ensure the safe operation of rail traffic, vehicle traffic, workers, and the general public. During the rehearsal the Contractor shall provide a live demonstration of the communications system and protocols to be used during the cutover. All Contractor personnel shall demonstrate acceptable communications between their assigned cutover locations and the Signal Engineer’s designated cutover location. No cutover work shall be done until the Contractor has demonstrated acceptable cutover communications to the Representative. .
5. All personnel involved with the cutover shall be knowledgeable of the NCTD and MTS Timetable track designations within the limits of the cutover including East and West directions. The Contractor shall provide a drawing depicting all locations and associated equipment within the limits of the cutover. The drawing shall include signal, switch, and track circuit designations and additional information that may aide personnel in their duties. All Contractor personnel assigned to the cutover shall have a copy of the drawing for reference during the cutover.
6. Contractor shall provide a plan for personnel replacement if the planned cutover is anticipated to extend beyond more than one shift.
7. To facilitate the installation of new equipment and circuit modifications in an existing instrument shelter, the Contractor shall remove those wires designated for elimination from raceways and “front case” prior to the cutover. Wires being removed and wires to be connected to new or existing equipment shall be clearly marked and identified.
F. When tests require specific meter or test instrument readings, the preprinted data sheet shall show the allowable range of values, for each part of the test. The test report shall also contain a check-off system for each action and a blank space adjacent to the expected value in which to record the test readings.
G. The test report shall also contain a final description sheet on which the Contractor shall record discrepancies found and action(s) taken. This documentation shall be furnished to the Representative.
34 42 60 - 7 H. All test reports shall be dated and signed by the responsible employee of the Contractor or subcontractor on the day the test is performed. Space also shall be provided for the signature of the witnessing inspector.
I. The report shall show the specific test instruments used on each test, with instruments identified by name, type, serial number, and calibration due date.
J. Should an error be discovered during field testing due to field wiring and connections that do not agree with the accepted circuit plans, the Contractor may correct such errors without prior acceptance of the Representative. The Contractor shall not, however, make any changes that affect safety of operation of the accepted circuit(s), as designed, without prior written acceptance of the Representative. Where errors in software are discovered during field testing, the Contractor shall make corrections and shall retest the location in its entirety unless otherwise instructed by the Representative.
K. The Representative will make all final determinations as to whether only a part, or the whole test, shall be rerun when any specific field test does not meet the require- ments specified for the test.
L. Any changes made after completion of test procedure shall be retested in accordance with the applicable test procedure.
3.03 FIELD TESTS AND INSPECTION
A. General field tests shall be performed and include the following:
1. Ground verification test.
2. Breakdown test of all vital circuitry.
3. Wiring verification of all non-vital circuitry.
4. Vital function tests.
5. Operating tests.
6. All applicable tests prescribed by AREMA Signal Manual Part 2.4.1, where the AREMA inspections and tests do not conflict with the requirements of these Special Provisions.
7. All applicable tests as prescribed in the NCTD Signal Maintenance, Inspection and Testing Manual 2-1.
B. Specific Field Tests:
1. Resistance of Ground Connections: All grounding connections shall be tested to determine that the ground resistance is not greater than 25 ohms using the
34 42 60 - 8 volt-ammeter test method prescribed in the NCTD Signal Maintenance, Inspection and Testing Manual 12-10. All ground connections shall be tested.
2. Insulation Resistance Tests: The test procedure for testing of insulation resistance shall include tests to verify the following:
a. All wire and cable installed along the right-of-way and the wire and cable entering or leaving the signal instrument shelter shall be tested after installation to ensure that insulation of wires, cable and connected equipment meet the specified resistance value. A direct reading instrument, having a 0-megohm to 200-megohm-scale range and a self-contained DC power supply rated 500 volts minimum to 1000 volts maximum, shall be used to measure the insulation resistance. Resistance between new conductors and ground shall be infinite. Resistance between existing conductors and ground shall not be less than that specified in the CFR 49, Part 236.108.
b. The insulation resistance of each conductor to ground and between each conductor and all other conductors in each multi-conductor cable shall be tested. Power sources, made grounds, and connections to the rails shall be disconnected from the circuits during testing.
c. The point used as ground shall be the most convenient ground available.
d. Insulation resistance test values shall be recorded on accepted Insulation Resistance Record Forms and turned over to the Representative upon acceptance of this test requirement.
3. Vital Relays:
a. All DC vital relays shall be tested for pick-up and drop-away values. These values shall be in accordance with field requirement values stated in Table I of AREMA Signal Manual, Part 6.4.1
b. These measured values shall be recorded on the accepted Relay Record forms and turned over to the Representative upon acceptance of this test requirement.
c. These tests shall be performed at the housing locations after the housing has been set.
4. Energy Distribution:
a. Energy-Off Tests: With all power to the Signal Instrument House or Wayside Case off, the following checks and tests shall be performed. These tests shall include:
(1) Removing all fuses.
34 42 60 - 9 (2) Verifying that circuit breaker size compares to that of approved circuit plans.
(3) Comparing wire gauges with those called for on the accepted circuit drawings. All discrepancies in wire sizes shall be replaced with the proper size wire.
(4) During energy distribution breakdown, a wire count on each terminal, relay contact, etc. shall be taken to ensure that only the number of wires called for on the accepted circuit plans is present at each terminal, relay contact, etc. Any discrepancies found shall be corrected and additional wires, if found, shall be removed.
(5) Verify proper system voltage for each power supply, AC and DC.
(6) Verify all power supplies for correct setting and quantities.
(7) Verify that no cross, shorts, or grounds exist.
(8) Tags shall be verified for proper nomenclature and terminal location.
5. Grade Crossing Warning Systems: Grade crossing warning systems shall be tested in accordance with applicable requirements of CFR 49, Part 234 and 236, CPUC General Order 75-D, manufacturer recommendations and NCTD/SDTI requirements. Unless otherwise approved by the Representative, test shall include observing a minimum of two train movements in each direction, on each track, with all possible routes, for both normal and standby operations. The functions to be tested shall include, but not limited to:
a. A test of Constant Warning Time Devices including the documentation of tests, inspections, and unit settings on a form provided in the manufacturer’s maintenance manual.
b. Joint testing of the traffic signal interconnect with the City of San Diego’s traffic signal engineer or designated representative.
c. Verification of advance preemption timing and crossing activation timing with test trains. Verification of approximately 7 seconds offset between the traffic preemption call and warning system activation.
PART 4 - MEASUREMENT AND PAYMENT
A. Full compensation for TESTING shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor.
END OF SECTION 34 42 60
34 42 60 - 10 SPECIAL PROVISIONS DIVISION 34 –TRANSPORTATION
SECTION 34 42 70 – GRADE CROSSING WARNING SYSTEMS
PART 1 - GENERAL
1.01 DESCRIPTION
A. Work includes furnishing transportation, labor, material, and equipment required for the detail design, fabrication, planning, installation, removal, relocation, modification, testing, placing in service, and documenting as-built conditions of grade crossing warning devices and systems to provide for the continuous operation of the highway grade crossing warning system as shown on the Drawings.
B. As shown on the Drawings, or as required to accommodate associated contract work, the Contractor shall make modifications to the existing highway grade crossing warning system including, but not limited to providing and installing new flashing light signal assemblies, flashing light signal with gate assemblies, gate arms, crossbucks, multiple track signs, emergency notification signs, uni- directional electronic bells; and furnishing, installing, and terminating local signaling cables.
C. Install new automatic crossing warning devices and local signaling cables. Contractor shall submit for review and comment of the Representative, a work plan to detour, or protect, pedestrians around or away from open excavations and construction in platform areas. Work plan must provide for safe and adequate pedestrian and vehicular access.
D. Relocate existing automatic crossing warning devices and local signaling cables as shown in the Drawings. Contractor shall submit for review and comment of the Representative, a work plan to detour, or protect, pedestrians and vehicles around or away from open excavations and construction in sidewalk and roadway areas, respectively. Work plan must provide for safe and adequate pedestrian and vehicular access.
E. Contractor shall be responsible for providing continuous highway grade crossing warning during all phases of construction. At no time shall the work of the Contractor cause delay to train operation, cause an unsafe signaling condition to exist, or reduce the effectiveness or quality of the existing or new grade crossing warning systems. The Contractor shall submit, for review and comment by the Representative, its proposed work plan for providing alternate methods of crossing warning whenever the existing automatic crossing warning devices are
104205 34 42 70-1 deactivated, altered, or modified to accommodate construction work. Alternate methods shall conform to applicable parts of CFR 49 and all local ordinances.
F. Protect existing signaling and communications cabling and, where necessary, relocate existing cabling in order to prevent damage to the cabling during grade crossing work.
G. Record the final as-built conditions of the crossing warning system for each crossing.
H. Perform and document all tests and inspections in accordance with CFR 49 regulations and these Specifications.
1.02 RELATED WORK
A. Section 34 42 00 - GENERAL SIGNALING REQUIREMENTS
B. Section 34 42 36 - MISCELLANEOUS PRODUCTS
C. Section 34 42 37 - SIGNAL WIRE AND CABLE
D. Section 34 42 60 - TESTING
1.03 QUALITY ASSURANCE
A. Grade crossing warning systems shall be furnished, installed, and tested in accordance with applicable requirements of CFR 49, Part 234, CPUC General Orders 26-D and 75-D, CA MUTCD, these Special Provisions, and the SANDAG/NCTD Joint Engineering Standard Drawings (ESD’s).
B. Each system will be inspected upon completion of installation and any deficiencies noted shall be corrected by the Contractor. This inspection will be conducted in conformance with the requirements of the Contractor's accepted Installation Inspection Procedure.
1.04 SUBMITTALS
A. Product Data and Shop Drawings: One electronic copy of shop drawings and catalog cuts for flashing light signals, flashing light signal assemblies, flashing light signal with gate arm assemblies, crossbucks, multiple track signs, emergency notification signs and electronic bells proposed to be furnished under this Contract. Shop drawings shall provide details indicating mounting and size dimensions and indicate placement of all LED lamp units, signs, bells, etc.
1. One electronic copy of catalog cuts or shop drawings for galvanized steel foundations and hardware, if necessary.
104205 34 42 70-2 1.05 DELIVERY, STORAGE, AND HANDLING
A. Any equipment damaged during transit or prior to in service operation shall be replaced at no additional cost to the Airport Authority.
PART 2 - PRODUCTS
2.01 EQUIPMENT - GENERAL
A. Contractor provided materials and equipment for installation and for interconnection of the highway crossing warning shall be fabricated, furnished, and installed as indicated on the Drawings and specified herein. Materials and equipment shall be the products of manufacturers regularly engaged in the production of such material and equipment and shall be the manufacturer's latest design. Signaling materials and equipment shall be of a type and model that are in standard operation on major railway systems.
B. Materials and equipment provided by the Contractor shall be new. Only those existing materials and equipment specifically identified on the Drawings for re-use, relocation, or modification shall be incorporated in the highway grade crossing warning systems. Materials and equipment shall conform to the provisions of AREMA Signal Manual, except as modified in this Special Provision.
2.02 CROSSING WARNING GATES AND FLASHING LIGHTS
A. The Contractor shall provide and install all new highway grade crossing warning device assemblies complete with all associated hardware consisting of mast mounted gate mechanism, mast, junction box base, gate arm, LED flashing light unit(s), electronic bell, signs, and miscellaneous hardware as shown on the Drawings, in accordance with ESD-8300, and as specified herein.
B. The Contractor shall upgrade existing highway grade crossing warning device assemblies complete with all associated hardware as shown in the Drawings. These upgrades shall consist of gate arm assemblies, flashing light signal assemblies, electronic bells, signs, and miscellaneous hardware as shown on the Drawings, in accordance with ESD-8300, and as specified herein.
C. All crossing gate warning device assemblies shall conform to the requirements of CPUC GO No. 75D; CFR, Title 49, Part 234; and the relevant sub-parts of the American Railway Engineering and Maintenance-of-Way Association (AREMA) C&S Manual Part 3.2.
D. The gate mechanism housing shall be cast aluminum for mounting on 5-inch diameter 16 feet (NCTD) or 18 feet (San Diego Trolley) aluminum pole and furnished complete with mounting brackets, counter-weight assembly, and counterweights. The Contractor shall provide either single sided counter-weight
104205 34 42 70-3 brackets or double-sided counter-weight brackets as recommended by the manufacturer. For NCTD, the Contractor shall fit gate arm bracket with an easy flex bi-directional gate keeper as manufactured by General Signals Inc., a two-way gate-saver as manufactured by National Electric Gate, or equal. For MTS, the Contractor shall fit gate arm bracket with a breakaway arm adapter as shown in the AREMA C&S Manual, Part 3.2.21.
E. The entrance gate mechanism shall be of the power-up, power-down electro- mechanical type complete with internal relay and adjustable snubbing resistor.
F. The Contractor shall provide and install all new gate arms required per ESD-8300 and site conditions. Gate arms shall be of the aluminum with fiberglass extensions and fiberglass tip type. Gate arm lamps shall be LED conforming to the AREMA C&S Manual, Part 3.2.40. Provide high intensity lamps when shown on the Drawings. Fit lamp wiring harness with a five wire pull-apart connector for interconnection to the gate mechanism and securely fasten to the gate arm.
G. The Contractor shall provide and install all new gate arm high wind guards conforming to ESD-8470 and AREMA C&S Manual Part 3.2.22 with each gate assembly.
H. The Contractor shall provide and install all new flashing light signal units as shown on the Drawings. Light units shall have 12-inch roundels with LED’s and be complete with 24-inch poly backgrounds, poly hoods, junction box, and cross-arm brackets.
I. The Contractor shall provide and install all new electronic, uni-directional crossing warning bells (low tone) conforming to the AREMA C&S Manual, Part 3.2.60 with gate assemblies as required.
J. The Contractor shall provide and install all new railroad crossing signs, multiple track signs, and the like, and shall be extruded aluminum, reflex-reflective sheet type as recommended in the AREMA C&S Manual Parts, 3.2.70 and 3.2.75, respectively. The Contractor shall provide signs complete with all hardware for mounting on 5-inch mast or on a cantilever mast. All highway grade crossings shall conform to CPUC required signage.
K. The Contractor shall provide and install Emergency Notification Signs as required by the ESD’s.
2.03 FOUNDATIONS
A. The Contractor shall provide and install all new foundations for warning devices as specified herein.
B. All galvanized steel foundations to be provided and installed shall be complete and in accordance with Special Provision 34 42 36 - Miscellaneous Products and AREMA C&S Manual, Part 15.3.1.
104205 34 42 70-4 C. Galvanized steel foundations shall be constructed of steel angle and plate welded together. Foundations shall be constructed of 2 1/2 inch by 2 1/2 inch by 1/4-inch steel angle and 1/4 inch steel plate.
D. Bolts, nuts, and washers shall be galvanized. Nuts and threads shall be in accordance with AREMA Specifications for Bolts, Nuts, and Threads, AREMA C&S Manual, Part 14.6.20. Plain washers shall be in accordance with AREMA Specifications for Plain and Spring Lock Washers, AREMA C&S Manual, Part 14.6.21. Steel shall be in accordance with AREMA Specifications for Various Types of Steel, AREMA C&S Manual, Part 15.1.4, Section 1. Bolts shall be of sufficient length to provide for leveling of the device.
2.04 HARDWARE
A. The Contractor shall provide and install hardware in accordance with Special Provision 34 42 36, Miscellaneous Products.
PART 3 – EXECUTION
3.01 GENERAL
A. The Contractor shall provide, install and adjust equipment and materials in accordance with the appropriate requirements and recommendations of the equipment manufacturer, in conformance with the recommendations of the applicable parts of the AREMA C&S Manual; as required by CFR 49, Parts 234 and 236; applicable CPUC regulations; or as otherwise specified herein.
B. Where existing grade crossing warning devices are indicated to be relocated, removed, protected, transported, stored, disassembled, re-configured the Contractor shall where necessary, reassemble and reinstall as shown in the Drawings.
3.02 RAIL BONDING
A. The Contractor shall maintain existing rail bonding for electrical continuity as required for continuous train detection within the approach limits of the crossing(s).
B. If necessary, the Contractor shall make signal connection to rails using weld type track circuit connectors per the ESD’s.
3.03 CROSSING WARNING SYSTEM
104205 34 42 70-5 A. The Contractor shall provide, install, connect, and test new equipment and cabling to the greatest extent practical without disruption of the existing highway grade crossing or signal systems.
3.04 HIGHWAY GRADE CROSSING EQUIPMENT
A. The Contractor shall provide and install grade crossing warning equipment in conformance with CFR, Title 49 Part 234; CPUC G.O. 75D; approved submittals; and as shown on the Drawings.
B. The Contractor shall ensure that final voltage adjustment and alignment of the flashing light units and final balancing of the gate arms be made at the time of the functional test. Final adjustments and alignments shall be made in conformance with the requirements of the AREMA C&S Manual, Parts 3.3.1 and 3.3.5 and CFR 49 Part 234.
C. The Contractor shall provide and install new cabling between the wayside gate/flasher and the crossing control shelter except where the Drawings specify the re-use of the existing cabling.
3.05 FOUNDATION INSTALLATION
A. The Contractor shall provide excavation, backfill, compaction, and clean-up of excavation as specified in these Special Provisions.
B. The Contractor shall provide and install each foundation in accordance with the approved installation detail for each type of foundation and as specified herein. The absence of a specific task listing herein does not relieve the Contractor of the responsibility for providing a complete and functional installation. The installation tasks that shall be completed by the Contractor are included herein.
C. Prior to placing foundations, excavate completely to the lines and grades required and install crushed stone base in accordance with the requirements specified.
D. The Contractor shall install foundations to the lines, grades, and dimensions required by the Drawings and these Special Provisions to provide a complete and functional installation. The Contractor shall install mounting bolts of sufficient length to accommodate use of leveling nuts between the base of the mechanism and the top of the foundation.
E. When placing foundations, the Contractor shall ensure that anchor bolts have not been bent and that the threads are undamaged. Protect anchor bolt thread, washers, and nuts by applying friction tape, or other methods adequate for preventing damage, until such time as the wayside equipment is installed. Bring damaged anchor bolts to the immediate attention of the Representative. Do not use damaged anchor bolts. Remove and replace damaged anchor bolts and completely or partially remove and replace foundation as determined by the Representative.
104205 34 42 70-6 F. When required, the Contractor shall refer to these Special Provisions for requirements for finishing formed surfaces, smooth rubbed finish. Exposed poured concrete foundations shall be rubbed to obtain a uniformly smooth, clean surface of even texture and appearance.
G. When required, the Contractor shall provide and install nonconductive material between the foundations and the mounted apparatus to prevent direct contact between the concrete and metal surfaces.
3.06 CONDUIT
A. The Contractor shall provide and install conduit where shown on the Drawings and as specified herein.
B. The Contractor shall provide and install conduit that shall conform to the specifications in Section 34 42 36, Miscellaneous Products.
C. After conductors have been installed, the Contractor shall seal ends of conduits terminating in instrument shelters, concrete vaults, junction boxes, and equipment cases with an approved type of sealing compound.
D. The Contractor shall directionally bore conduit under the existing roadway. Where directional bores are not practical for crossing under the roadway, the Contractor shall propose a preferred alternative method of conduit installation, subject to review and comment by the Representative.
E. The Contractor shall install conduit to a minimum depth of 36 inches below finished grade except where specifically noted otherwise.
3.07 REMOVING AND REINSTALLING EQUIPMENT
A. The Contractor shall relocate and reuse existing equipment as shown on the Drawings.
1. Re-wire and tag with new, any existing equipment designated to be reused except where noted on the Drawings.
B. Removed equipment and materials not designated for reuse shall become the property of the Contractor and disposed of in accordance with applicable regulations.
C. The Contractor shall change existing crossing warning systems over to the new systems as expeditiously as practical. The Contractor shall remove retired equipment immediately from location and keep work site free of debris and packaging materials.
3.08 FIELD QUALITY CONTROL
104205 34 42 70-7 A. The Contractor shall perform testing in accordance with Special Provision Section 34 42 60 Testing, including documentation requirements.
B. The Contractor shall prepare test procedures and perform and document tests on the highway grade crossing components and systems as follows:
1. Include all tests herein specified, as specified in the appropriate sections of the AREMA C&S Manual, and the FRA Rules, Standards, Instructions for Railroad Signal Systems, CFR 49 Part 234 and 236.
2. Perform applicable tests to each interim signal system, if any, before placing in service.
3. The Representative shall witness actual testing.
C. The Contractor shall make measurements at each piece of wayside equipment and record on the as-built record drawings verifying that the equipment is located where shown on the Drawings and as approved by the Representative. The Contractor shall verify, by physical measurement, that the equipment does not violate the train dynamic clearance envelope.
D. The Contractor shall test each grade crossing warning installation in accordance with Section 1513228, Testing, and the AREMA C&S Manual, Parts 3.3.1 and 3.3.5. In addition, the Contractor shall perform all applicable tests as described in the NCTD Maintenance Manual, all manufacturer’s recommended test and adjustment procedures, and any tests required by regulation.
E. The Contractor shall follow manufacturer's instructions for testing of operation and electronic equipment.
F. The Contractor shall submit test data and results to the Representative as information and approval within 24 hours of placing the apparatus or system in operation.
PART 4 - MEASUREMENT AND PAYMENT
4.01 MEASUREMENT AND PAYMENT
A. Full compensation for GRADE CROSSING WARNING SYSTEMS shall be considered as included in the contract lump sum price paid for RAILROAD CROSSING AND SIGNAL MODIFICATIONS and no additional compensation will be allowed therefor.
.
104205 34 42 70-8 END OF SECTION 34 42 70
104205 34 42 70-9