09-27-2021 Council Packet - Laserfiche WebLink

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CITY COUNCIL AGENDA ITEM 6B STAFF ORIGINATOR: Diane Hankee PE, City Engineer MEETING DATE: September 27, 2021 TOPIC: Consider Resolution No. 21-91, Approving Change Order No. 1, Northeast Drainage Improvement Project VOTE REQUIRED: 3/5 INTRODUCTION Staff is requesting council approval of Change Order No. 1 for the Northeast Drainage Area Improvement Project. BACKGROUND On November 9, 2020, the City Council awarded the bid for the Northeast Drainage Area Improvement Project to Jacon, LLC in the amount of $1,010,009.00. The project is approaching completion and included a new storm water conveyance system from the east side of 20th Avenue to the Peltier Lake. The project provides a surface water outlet for the entire 1,300 acre Northeast Drainage Area in conformance with the Comprehensive Surface Water Management Plan. During construction, poor soils were encountered at the crossing of 20th Avenue (CSAH 54). Anoka County required a longer taper (15:1) from the bottom of the pipe excavation trench. This resulted in additional earthwork, subgrade preparation, and street restoration. This design change also required that CSAH 54 be closed. A more complicated detour plan was needed to route traffic over to Highway 61 which required MnDOT approval. Change Order No. 1 in the amount of $17,332.62 includes the above described additional earthwork, subgrade excavation, street restoration, and traffic control. The Northeast Drainage Area Improvement Project contract with Jacon, LLC., with Change Order No. 1, would be increased to $1,027,341.62. This amount is within the project planned contingencies and budget. RECOMMENDATION Staff is recommending approval of Resolution No. 21-91 for Change Order No. 1 in the amount of $17,332.62 for the Northeast Drainage Area Improvement Project. ATTACHMENTS 1. Resolution 21-91 2. Change Order No.1