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Standard Specifications and Details for Water Mains & Sewer Mains

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Standard Specifications and Details for Water Mains & Sewer Mains CECIL COUNTY DEPARTMENT OF PUBLIC WORKS STANDARD SPECIFICATIONS AND DETAILS FOR WATER MAINS & SEWER MAINS November 3, 2009 CECIL COUNTY DEPARTMENT OF PUBLIC WORKS STANDARDS SPECIFICATIONS AND DETAIL FOR WATER MAINS & SEWER MAINS Board of County Commissioners of Cecil County Bryan L. Lockhart, President Rebecca J. Demmler, Vice President James T. Mullin Wayne L. Tome Robert J. Hodge Director of Public Works Scott Flanigan November 3, 2009 TABLE OF CONTENTS Section Title Pages 01000 GENERAL PROVISIONS 1.0 DEFINITIONS 1-4 2.0 APPLICABILITY 4 3.0 PURPOSE 4 4.0 AUTHORITY 4 5.0 AMENDMENTS 4 6.0 AVAILABILITY OF STANDARDS 5 7.0 VARIANCES 5 8.0 PENALTY 6 9.0 EFFECTIVE DATE 6 10.0 APPROVED PLANS AND PROCEDURES 6 11.0 CONNECTION WITH EXISTING INFRASTRUCTURE 12-13 12.0 CONTROL OF WORK AND MATERIALS 13-20 13.0 LEGAL RELATIONS AND RESPONSIBILITY TO THE PUBLIC 20 14.0 SEVERABILITY 22-23 15.0 ALTERNATE STANDARDS 23 16.0 DESIGN 23-24 02012 TEST PITS 25-27 02050 REMOVAL OR ABANDONMENT OF EXISTING UTILITIES 28-32 02110 CLEARING AND GRUBBING 33-35 02240 AGGREGATE BACKFILL 36-37 02250 TRENCH EXCAVATION, BACKFILL AND COMPACTION 38-51 02300 BORING AND/OR JACKING PIPE 52-56 02310 DIRECTIONAL BORING OF PRESSURE SEWER 57-61 02400 TUNNELING 62-72 02660 WATER MAINS 73-89 02662 WATER VALVES AND APPURTENANCES 90-96 ~ I ~ TABLE OF CONTENTS (cont’d) Pages 02664 WATER SERVICES AND APPURTENANCES 97-108 02666 FIRE HYDRANTS 109-112 02700 GRAVITY SANITARY SEWER AND HOUSE CONNECTIONS 113-128 02710 SANITARY SEWER MANHOLES 129-135 02720 SANITARY SEWER FORCE MAINS 136-148 02731 LOW PRESSURE SEWER 149-155 02800 RESTORATION 156-159 02820 TURF ESTABLISHMENT 160-171 02830 SODDING 172-175 02850 SOIL STABILIZATION MATTING 176-178 02860 TREE PROTECTION 179-181 02865 TREE AND SHRUBS 182-189 02870 FENCES 190-193 02905 DIRECTIONAL DRILLING 194-198 03200 CONCRETE REINFORCEMENT 199-202 03300 CAST-IN-PLACE CONCRETE 203-221 03400 PRECAST CONCRETE UTILITY STRUCTURES 222-226 04100 MORTAR 227-229 04200 BRICK MASONRY 230-234 05500 MISCELLANEOUS METALS 235-241 11307 SEWAGE GRINDER PUMPING UNITS 242-254 ~ II ~ TABLE OF CONTENTS (cont’d) Standard Details Pages Standard Symbols G-1 Water and Sewer Services for Single Family Lots G-2 Water and Sewer Services for Townhouse Lots G-3 Trench Payment Widths G-8 Jacking or Boring G-9 Tunneling G-10 Trench Backfill with Flowable Fill G-12 Access Drive G-16 Methods of Strapping Flexible Couplings in Vault and Facilities G-18 Dip to HDPE Transition Connection G-19 Methods of Connecting Dip to Existing Watermain Requiring A Shutdown G-20 Tree and Shrub Planting Detail G-21 Pipe Bedding W-1 Continuity Test Station at Fire Hydrant W-2 Typical Fire Hydrant Settings W-3 Typical Fire Hydrant Settings W-3a Restraining Fire Hydrant W-4 Buttress for Tees W-6 Buttress for Horizontal ¼ Bends W-7 Buttresses and Anchorages for Vertical Bends W-8 Buttresses for Caps and Horizontal Bends W-10 ~ III ~ TABLE OF CONTENTS (cont’d) Pages Caps and Blow-Off 4” Mains and Larger W-13 Outside Setting ¾” Supply with 5/8” Meter W-18 Outside Setting 1” Supply with ¾” Meter W-19 Outside Settings 1” with Twin 5/8” Meters W-20 Outside setting 1 ½” Supply with Twin ¾” W-21 Outside Setting 1 ½” Supply with 1” Meter W-22 Outside Setting 1 ½” and 2” Metered Services W-23 Open System Domestic Water Service with Fire Supply W-24A Closed System Domestic Water Service with Fire Supply W-24B Standard Installation for 3” thru 10” Combined Fire and Domestic Service W-25 “Conceptual” Reverse Flow Meter W-26 Air Release Valve Combination Air Valve and Vault W-29 Transmission Line Dewater/Blowoff W-31 Water Valve Location In Intersections W-35 5 ¼” Valve Box W-36 4 ¼” Curb Box with Lock Lid W-37 Pipe Bedding S-1 48” Precast Manhole for 21” pipe and Smaller S-2 60” Precast Manhole for 24” to 30” Pipe S-3 72” and Larger Manholes for 36” pipe and Larger S3a Manhole within Offsite/Unimproved Area S-8 Built –In- Place Drop Manhole Type ˝A˝and ˝B˝ S-9 ~ IV ~ TABLE OF CONTENTS (cont’d) Pages 48” Precast Drop Manhole for 8” Dia. Pipe S-10 Methods of Connection to Existing Manhole S-12 Standard Frame and Cover S-14 Locking Frame and Cover Non-Watertight S-15 Watertight Manhole Frame and Cover S-16 Watertight Manhole Frame and Cover S-17 House Service Connection at Main S-20 Drop House Service Connection at Main S-21 House Service Connection Clean Out S-22 Lamphole S-24 Sewage Combination Air Valve in Manhole S-25 Pump Around S-26 Sanitary Cleanout in Paving S-28 Manhole Vent S-30 Abandonment of Pipe at Manhole S-31 Complete Manhole Abandonment S-32 Manhole Channel Detail S-33 Brick Manhole Conversion to Pre-Cast S-34 Pipe Bedding LP-1 Isolation Valve Assembly LP-2 Terminal Flushing Connection LP-3 ~ V ~ TABLE OF CONTENTS (cont’d) Pages Service Valve Assembly LP-4 Inline Flushing Connection LP-5 Connection at Manhole LP-9 Services Valve Assembly Connection to Pressure Main LP-10 Grinder Pump Location for Simplex Pumps LP-11 Grinder Pump Location for Duplex Pumps LP-12 Anti-Floatation Collar LP-13 Typical Grinder Pump Electric Service LP-15 Simplex Grinder Pump Section LP-18 Duplex Grinder Pump Section LP-19 Low Pressure Sewer Air Release Valve LP-20 ~ VI ~ SECTION 01000 GENERAL PROVISIONS 1.0 DEFINITIONS Whenever the words defined in this section, or pronouns used in their stead occur in these Standard Specifications, they shall have the meanings given below. Whenever the words APPROVED, ACCEPTABLE, or words of like import are used in these Standard Specifications, it shall be understood that “Approved by” or “Acceptable to” the Director is intended, unless otherwise stated. A. AASHTO – American Association of State Highway and Transportation Officials. B. AREA – American Railway Engineering Association (Publishes the Manual for Railway Engineering). C. ASTM – American Society for Testing and Materials. D. COMMERCIAL ROAD - Any road which lies within or is contiguous to any area which has been recommended or approved for any class of commercial use in any zoning or master highway plan approved by the County Commissioners of Cecil County. E. COMMISSIONERS – The Board of County Commissioners of Cecil County. F. CONSTRUCTION DRAWINGS – Plans showing the location, dimensions and sizes of the materials on the lines and slopes, at the depths with the connections and the manner in which they are to be placed as called for by the Specifications and which also outlines the work and the materials to be provided for and placed, in accordance with such changes as may be approved from time to time during the progress of work, as hereinafter provided. Also referred to as Plans”. G. CONSTRUCTION EASEMENT - The area secured for temporary use and or modification for the purpose of facilitating work to be accomplished during construction. H. CONTRACTOR - The party contracted by the Project Owner to execute the approved construction drawings. I. COUNTY - The Cecil County Department of Public Works. Also referred to as the Department. J. DEDICATION PLAT - Any plat conforming to law, duly recorded among the land records of the County which describes one or more rights-of-way intended to be dedicated to public use. ~ 1 ~ K. DEPARTMENT - Cecil County Department of Public Works. L. DESIGNER - An engineer or engineering company responsible for preparing the plans covered under these Standard Specifications. M. DEVELOPER - Person or organization proposing to develop, developing, or obtaining a building permit for a previously undeveloped parcel of property. N. DIRECTOR - Director of the Cecil County Department of Public Works or his duly authorized agents. O. EASEMENT - A right acquired by public authority to use or control property for a designated public purpose. P. EMERGENCY OVERTIME INSPECTION – Inspection of work that, in the sole determination of the Department, must continue beyond normal inspection hours to avoid substantial inconvenience, provide for safety of the public, or provide for a substantially better work product. Q. ENGINEER - Registered Professional Engineer in the State of Maryland or a duly authorized agent thereof. R. ESTABLISHED GRADE - Profile grade as anticipated and approved for future construction in order to meet geometric criteria approved by established standards of construction. S. GROUNDWATER - The water constrained in soil or rocks below the ground surface. T. INSPECTOR – A representative of the Department authorized to make any or all necessary inspections of work performed and material furnished by the Contractor. U. INUNDATED – Submerged under water. V. MD E&S MANUAL – Most correct edition of Maryland Standards and Specifications for Erosion and Sediment Control. W. MAINTENANCE AGREEMENT – Agreement executed between a Developer and the Cecil County Department of Public Works covering terms and conditions related to post-construction maintenance of private facilities by the Developer. X. PERMANENT MAINTENANCE EASEMENT – An easement providing permanent right to the Department and other applicable agencies for ~ 2 ~ maintenance of public facilities located in the easement. Y. PERMITTEE – A person, firm or corporation who has applied for and holds a valid permit in full force and effect, issued by the Director of the Department of Public Works, authorizing construction of facilities covered under these Standard Specifications. Z. PERSON – Includes an individual, association, firm, partnership, or corporation but does not include any governmental agency, whether County, Federal, State or Municipal. AA. PLANS, AS-BUILT – plans prepared by a surveyor after construction confirming or specifying changes to dimensions and elevations shown on the original plans. BB. PROFESSIONAL ENGINEER – As defined by the State of Maryland, Department of Labor, Licensing and Regulations, Division of Occupational and Professional Licensing.
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