09-11-2023 Council Meeting Packet

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CITY COUNCIL REGULAR MEETING STAFF REPORT AGENDA ITEM 6C STAFF ORIGINATOR: Diane Hankee PE, City Engineer MEETING DATE: September 11, 2023 TOPIC: Consider Resolution No. 23-91, Approving Change Order No. 2, 2023 Pheasant Run Reconstruction Project VOTE REQUIRED: 3/5 _____________________________________________________________________________ INTRODUCTION Staff is requesting council approval of Change Order No. 2 for the 2023 Pheasant Run Reconstruction Project. BACKGROUND On April 10, 2023, the City Council awarded the bid for the 2023 Pheasant Run Reconstruction Project to A-1 Excavating, LLC in the amount of $886,886.00. Construction of the project began in August 2023. The project includes watermain, sanitary sewer, storm sewer replacement and street reconstruction. On July 10, 2023 the City Council approved Change Order No. 1 for the contractor to perform a pre-condition survey and monitor the vibration on the project for a new contract cost of $919,686.00. As construction has commenced, staff has been required to turn additional valves not within the project limits in order to supply temporary water to residents. It has been found that these additional valves are leaking and need emergency replacement. Due to the urgency of the requested replacement, and the close proximity to the project, gate valves need replaced at three locations: Captains Place near Black Duck Drive (Site 1), the northwest quadrant of the Pheasant Run and Birch Street intersection (Site 2), and the southwest quadrant of the Pheasant Run and Birch Street intersection (Site 3). This area is also prone to high water levels and corrosion. Due to these factors, the sanitary manholes be lined with an epoxy flex seal on the interior (to supplement the gator wrap on the exterior) to keep water out and extend the life of the sanitary sewer system in this area. For Council consideration, staff has drafted Change Order No. 2 in the amount $58,440.00 to remove the existing valves and install new gate valves. Funding for the project is from the 2021 Street Reconstruction Bonds, the Water and Sewer Operating Funds, the Trunk Water Fund, and the Street Reconstruction Fund. The 2023 Pheasant Run Project contract with A-1 Excavating, LLC with Change Order No. 2 would be increased to $978,126.00. This amount of Change Order No. 2 is within the project planned contingencies and budget.