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October 15, 2002

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October 15, 2002 MARCH 7, 2017 ADDENDUM NO. 3 for CHICAGO DEPARTMENT OF AVIATION CHICAGO O’HARE INTERNATIONAL AIRPORT RUNWAY 9C/27C – BID PACKAGE #1 Specification No. 333636 For which bids are scheduled to be opened in the City Hall Bid and Bond Room, Room 103, City Hall, 121 North LaSalle Street, Chicago, Illinois 60602, at 11:00 a.m., March 10, 2017. The following revisions are incorporated into the above-referenced specification (the "Contract Documents") as noted. All other provisions and requirements as originally set forth, except as amended by previous Addenda, remain in full force and are binding. Any additional work required by this Addendum shall conform to the applicable provisions of the original Contract Documents. In accordance with Section 13 of the “Requirements for Bidding and Instructions for Bidders” in Part One of Three: Interpretation of Contract Documents, the deadline for questions has passed. No additional questions will be answered prior to bid opening except as the Chief Procurement Officer, in her sole discretion, deems to be in the best interest of the City. BIDDER WILL ACKNOWLEDGE RECEIPT OF THIS ADDENDUM IN THE SPACE PROVIDED ON THE PROPOSAL PAGE BID OPENING DATE HAS BEEN EXTENDED TO MARCH 21, 2017, 11:00 a.m. CENTRAL TIME ADDENDUM NO. 3 – MARCH 7, 2017 1 OF 6 CITY OF CHICAGO SPECIFICATION NO.: 333636 DEPARTMENT OF PROCUREMENT SERVICES RUNWAY 9C-27C BID PACKAGE #1 FEDERALLY FUNDED JAMIE L. RHEE CHIEF PROCUREMENT OFFICER PART ONE OF THREE INSTRUCTIONS AND EXECUTION DOCUMENTS For the convenience of the potential bidders, the revisions to Part One are as follows (New Pay Items are in bold italics with “*”): Section / Sheet Section Title Description of changes Part One of Three Instructions and Execution Documents Part One Cover Coversheet Revised Submittal Title and Date Revised schedule of prices supercedes Addendum #1 to reflect S3-2 through S3-10 Schedule of Prices all changes made to pay items and quantities. Revised Work Area 1D restriction S4-9 SECTION 4 TIME OF COMPLETION language (See attached PART ONE OF THREE revised Page S4-9). PART THREE OF THREE TECHNICAL SPECIFICATIONS For the convenience of the potential bidders, the revisions to Part Three Specifications are as follows (New specifications are in bold italics with “*”): Specification No. Specification Title Description of changes Part Three of Three Technical Specifications Part Three of Three Cover Cover Sheet Revised Submittal Title and Date Part 1 - revised scope of work for runway lighting items, deleted scope items not included in contract, noted sign panels and light fixtures to be provided by CDA, changed Special Light Base to Type 2 Marker Light Base. Part 2 - deleted items not included in contract, noted sign panels and light fixtures to be MARKER LIGHT BASES, provided by CDA. L-100 LIGHTING FIXTURES, Part 4 – deleted items not included in AND GUIDANCE SIGNS contract, noted sign panels and light fixtures to be provided by CDA, revised transformer sizing language. Part 5 - revised one pay item description and added one new pay item. See attached revised Part Three of Three, Section L-100. Inserted subpart 2.05.H to denote that ComEd ELECTRICAL MANHOLES L-115 will provide frames and covers for ComEd AND HANDHOLES Manholes. WARM MIX ASPHALT Revised Subpart 5.01.C to include pay item for P-405(WMA) CONCRETE PAVEMENTS test strip. ADDENDUM NO. 3 – MARCH 7, 2017 2 OF 6 CITY OF CHICAGO SPECIFICATION NO.: 333636 DEPARTMENT OF PROCUREMENT SERVICES RUNWAY 9C-27C BID PACKAGE #1 FEDERALLY FUNDED JAMIE L. RHEE CHIEF PROCUREMENT OFFICER CONTRACT DRAWINGS For the convenience of the potential bidders, the revisions to the Contract Drawings are as follows (New sheets are in bold italics with “*”): Sheet No. Sheet Title Description of changes Plans - Volume 1 General Plans GI-007 INDEX OF SHEETS Added new sheet EA-268A. Revised Work Area 1D restriction GC-080 PHASE 1 PLAN WORK AREAS 1C THRU 1E language (See attached revised drawing). AIRFIELD GUIDANCE SIGN AND BASE New sheet providing details for guidance EA-268A DETAILS signs of more than four modules. RESPONSES TO BIDDERS’ QUESTIONS QUESTION NO. 186: In Addendum No 1, Question 6, the City did not answer the original question. Does the price for Unclassified Excavation – Undercut and Backfill include the costs for hauling and disposing of excavated material off-site? Or will the haul off and disposal be paid for as Unclassified Excavation, Off-site? RESPONSE: Per Specification P-152, all costs associated with Unclassified Excavation – Undercut and Backfill, including hauling and disposing on or off-site, are included in the per cy cost of the pay item. The contractor may limit the amount required to be hauled off-site by mitigating excess moisture, segregating, and other measures intended on keeping the usable material on Airport property. No separate payment will be made for materials required to be hauled off-site under this pay item. QUESTION NO. 187: On plan sheet GI-009, issued under Addendum No 1, Staging and Storage Areas – note 5 was changed indicating that Excess soils, excess milled asphalt concrete, bituminous concrete rubble, Portland cement concrete rubble, and unsuitable excavations must be disposed of at approved locations on site or off airport property as directed by the commissioner. The cost for onsite disposal and off-site disposal are dramatically different. Please confirm that all soils that the Commissioner directs to leave airport property will be paid under Unclassified Excavation, Off-site. How will the City pay the Contractor to dispose of asphalt or concrete off-site? RESPONSE: All non-contaminated excavated soils that the Commissioner directs to leave airport property, except for material included in the pay item Unclassified Excavation – Undercut and Backfill, will be paid under Unclassified Excavation, Off-site. All ADDENDUM NO. 3 – MARCH 7, 2017 3 OF 6 CITY OF CHICAGO SPECIFICATION NO.: 333636 DEPARTMENT OF PROCUREMENT SERVICES RUNWAY 9C-27C BID PACKAGE #1 FEDERALLY FUNDED JAMIE L. RHEE CHIEF PROCUREMENT OFFICER recyclable asphalt and concrete materials are assumed to remain on airport property for processing. Per Specification 02245 Subpart 6.01, deleterious material associated with recycling PCC and Asphalt will be removed and disposed off-site and is included in the associated pay items. QUESTION NO. 188: Will the bid the bid date for this project be changed? Per addendum both the 9C-27C Bid Package #1 Spec. No 333636 and Taxiway Z/J and Tank Farm Road Spec. No. 311695 bids are now due on the same date, 3/2/2017. Due to this dual bid submission date, there are concerns that the DBE contractors selected may become over committed if utilized on both projects that are being bid simultaneously. In doing a quick budget for the Sewer work on 9C-27C it is over $10,700,000 and the budget for the DBE Sewer work on Taxiway Z/J is over $13,000,000, which is $23,700,000. The allowable DBE per IDOT is $23,000,000. This will put the DBE sewer sub out of the DBE program after these projects. Also the electrical is $30,000,000 and $13,000,000. If we gave one sewer sub or one electrician all of their respective work they may exceed their annual work limit and jeopardize their DBE status as a result. At time of bid, how can we chose which sub to turn in on which projects. We request that the two mentioned contracts be let on separate dates in order to maximize the use of DBE firms without over commitment.” RESPONSE: Addendum #2 moved the Bid Opening Date to March 10. QUESTION NO. 189: Per question 176 on addendum 1, it states that, “It is anticipated that all required Ca-1 and Ca-6 will be made available by on-airport crushing activities.” Is this the same if we run short of RCB? RESPONSE: Yes. As specified in “PART THREE OF THREE TECHNICAL SPECIFICATIONS SECTION 02245 - RECYCLED CRUSHED CONCRETE AND ASPHALT” it is anticipated that all required CA-1, CA-6, and RCB will be made available by this contracts on-airport crushing activities. QUESTION NO. 190: Per sheet S4-9 under AREA 1D; it states that we are not allowed to start working in this area until the GRE is relocated. The duration of the relocation of the GRE is 120 calendar days. 1D is a very large area and will take more than 3 or 4 months to complete. Also, the GRE is only in the overlay area of 1D. Can this be stated that 1D cannot be completed until the GRE is relocated? RESPONSE: Area 1D can begin work once Area 1A taxiway closures have been implemented. See ADDENDUM NO. 3 – MARCH 7, 2017 4 OF 6 CITY OF CHICAGO SPECIFICATION NO.: 333636 DEPARTMENT OF PROCUREMENT SERVICES RUNWAY 9C-27C BID PACKAGE #1 FEDERALLY FUNDED JAMIE L. RHEE CHIEF PROCUREMENT OFFICER revised PART ONE OF THREE, SECTION 4 TIME OF COMPLETION Article 4.3.4. Project Phasing Restrictions 1D (Sheet S4-9) and drawing GC-080 associated with this addendum. QUESTION NO. 191: Will ComEd provide frames and covers for all new ComEd Manholes? RESPONSE: Yes, ComEd will provide frames and covers for ComEd Manholes only. QUESTION NO. 192: Addendum #1, Page 5 of 70, the last question on the page in reference to Spec Section L-100 details that Subpart 2.02 removed references to Runway Light Fixtures and added taxiway light fixtures to be provided by CDA. Upon review of the provided Addedum 1 Book 3 Spec Section L-100, nothing has been changed. Please clarify who is providing the elevated taxiway light fixtures. RESPONSE: CDA will furnish elevated taxiway edge lights.
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