Agenda - Council - 07/26/2016 - Laserfiche WebLink

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Notification: No notifications were required for this case. Observations/Alternatives: Observations: On June 16,2015,City staff asked the Public Works Committee to provide a recommendation to City Council to approve an improvement project removing the plywood sheet and extending the 73"A-RCP storm sewer into Lake Ramsey as originally proposed. At that time, Staff estimated costs for this work at$175,000 and proposed to pay for the work using City Stormwater Utility Funds. Staff proposed that the improvements be completed in 2015 due to concerns that the plywood sheet would rot out again and that a portion of the pavement section and/or shoulder of Bunker Lake Boulevard could potentially buckle during a heavy rain event. However,the Public Works Committee did not recommend Council approval of the proposed improvements at that time, and instead recommended waiting until the storm sewer outlet was needed for a specific reason,which could potentially reduce the City's share of the costs. Such reasons may include a new development, in which case the developer could fund a portion or all of the work,or the reconstruction of Bunker Lake Boulevard,in which case the cost of the improvements could be reduced due to being constructed as part of a larger project. A copy of the minutes from the June 16,2015 Public Works committee meeting is attached. Staff completed preliminary plans, specifications, and an engineer's estimate for the proposed improvements prior to the June 16, 2015 Public Works Committee meeting. Then following recent City Council approvals related to the sale of the COR Three North Commons parcel, staff completed the plans and specifications,which are attached to this case. As shown in the plans, staff is not proposing to down-size the trunk storm sewer outlet to reduce construction costs as was discussed in 2006. This is because this would remove the ability to provide future drainage for areas north of RTC 10th Addition though this storm sewer line,plus it is not good engineering practice to reduce downstream pipe sizes. In a previous case this evening, the City Council considered approvals required for development of the COR Three North Commons parcel. Development of this parcel requires the completion of the proposed storm sewer outlet. Staff is therefore requesting Council approval of the attached plans and specifications prepared by Staff, as well as authorization to advertise for bids.Upon Council approval, advertisements for bids will be published in the Anoka Union Herald and in Finance and Commerce on July 29th and August 5th. Bids will then be opened Friday,August 19th, and Council would consider accepting bids and awarding a construction contract to the lowest responsible bidder on August 23rd.Work may then commence as soon as contract documents are executed and a Notice to Proceed is issued,which is anticipated to occur on or soon after September 1st. Construction of the proposed improvements is anticipated to take 5 weeks or less to complete, depending on weather and availability of materials. The bidding schedule outlined above would allow the storm sewer outlet to be operational by early October,allowing unimpeded development of the COR Three North Commons parcel. A traffic detour is proposed along Center Street between Bunker Lake Boulevard and Sunwood Drive during portions of construction,which given the low traffic volumes on Zeolite Street should not result in any issues for drivers or local businesses. Alternatives: Alternative#1 —Motion adopting Resolution 416-07-135 approving plans and specifications and authorizing advertisements for bids for Improvement Project 916-95,Zeolite Street Storm Sewer Extension. Alternative 42—Motion denying adoption of Resolution 416-07-135 at this time. Funding Source: