Agenda - Council - 02/22/2022 - Laserfiche WebLink

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CC Regular Session 5. 18. Meeting Date: 02/22/2022 By: Bruce Westby,Engineering/Public Works Information Title Adopt Resolution#22-054 Approving Amended Plans and Specifications and Advertisements for Bids for Improvement Project#22-05, Riverdale Drive Trunk Utility Improvements, Llama Street to Bowers Drive Purpose/Background: Purpose The purpose of this case is to adopt Resolution#22-040 approving amendments to the plans and specifications and advertisements for bids for Improvement Project#22-05,Riverdale Drive Trunk Utility Improvements, Llama Street to Bowers Drive. Background: On February 8, 2022,the City Council adopted Resolution#22-040 approving plans and specifications and authorizing advertisements for bids for Improvement Project#22-05, Riverdale Drive Trunk Utility Improvements, Llama Street to Bowers Drive. The plans presented to Council that evening included a proposed trunk watermain loop under Highway 10 and the BNSF Railway that serves to connect the trunk watermain proposed under Riverdale Drive to the existing trunk watermain under Bunker Lake Boulevard at Puma Street. This allows water to be routed to users from numerous directions to allow uninterrupted water use in the event of a watermain break or while work is being performed on the water supply system. As was previously discussed, the trunk utility improvements under the proposed extension of Riverdale Drive are proposed to be constructed before the proposed street improvements (Improvement Project#20-05)to better facilitate the proposed construction schedule for the Riverstone South development. By doing this,the trunk utility plans will not need to follow the same MnDOT plan review process as the street improvement plans allowing the utility improvements to be bid and constructed well in advance of the street improvements, which will minimize the construction schedule for Improvement Project#20-05. Following Council adoption of Resolution#22-040, advertisements for bids were published in the Anoka Union Herald and in Finance &Commerce on Friday, February 11 th, and again on Friday,February 18th, 2022. However, before the advertisements were published, Bolton and Menk was informed by MnDOT that the trunk watermain loop improvements proposed in the plans under Highway 10 and the BNSF Railway would require a rigorous plan review process including reviews by many of MnDOT's functional groups. This is because constructing the watermain loop would have impacts within the MnDOT right-of-way. Based on the amended plans, all work is now within City right-of-way. Since leaving the watermain loop in the plans would have increased MnDOT's plan review process by 5 weeks or more,potentially pushing the project completion date out to mid-September or later, Bolton and Menk amended the approved plans, specifications and bid advertisements to remove the trunk watermain loop improvements. Council approval of these amendments is therefore being requested after the fact. Based on the amended plans, construction of the trunk utilities is anticipated to start in May, depending on weather and Contractor availability, and to be complete by August,before the street improvement project is anticipated to be under construction. The trunk utilities improvements are anticipated to take 7 to 8 weeks to construct, including the lift station within the Riverstone South plat.