01-27-2014 Council Packet - Laserfiche WebLink

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� COUNCIL ME�TING REQUEST FOR COUNCIL ACTION �� 2 7 Z014 DATE: January�-7;ZI��ONO ITEM NO: �;� Department Approval: Administrator Reviewed: Agenda Section: Name Jesse Struve Public Works Director/ Title Public Works Director/City Engineer �_ City Engineer's Report Item Description: North Water Tower Repainting Project List of Exhibits A- Proposal for Professional Services from Short Elliot Hendrickson (SEH). B- Additional local water towers (Hopkins and Cottage Grove)which will be participating in the service contract program with SEH in 2014. G Memo from Bolton and Menk D- Cost Comparison between traditional design / bid / build and maintenance contract approach—by the City of Cottage Grove. The existing water tower is a hydropillar-style tank with a flute center column and was originally erected in 1992. Typical maintenance on a water tower includes inspecting the tank every 1-5 yrs, cleaning the tank every 5-10 yrs, and repainting every 20 yrs. The tank was inspected in December 2012 (see Exhibit A) by Short Elliot Hendrickson (SEH) and was considered in fair condition. SEH recommended an overcoat application, rather than a more expensive blasting and repainting. Based on the existing condition of the water tower and due to budgetary constraints, it was decided to delay the painting of the water tower from 2012 to 2014. This is two years longer than what is typically recommended. If this project is delayed, there is a possibility of failure of the existing coating system. This could lead to metal loss which could cause for far more expensive repairs in the future, or worse case the loss of the original capital investment. There are two ways in which the City can proceed with the repainting of the water tower: 1. Traditional Design/Bid/Build Method. 2. Design/Build Method. Traditionally, the City has always used the traditional design-bid-build method for all projects. This method involves creating the plans and specifications, posting the project for bidding, and awarding the contract to the lowest bidder. This process typically has a 1 year warranty period but some cities have bid out 2 yr and 5 yrs warranties for additional cost. Any repair after the warranty expires is the City's responsibility. The design-build approach is a relatively new approach for water towers. In May 2002, MN State Statue 2000, section 471.345 was amended to allow for municipalities to enter into multiyear professional service contract for engineering, repair, and maintenance of a water storage tank (see Exhibit A, page 5). The benefits of this approach are the contractor works with an engineering firm on the inspection and review of tanks. This allows them to have intimate knowledge of the tank and allows them to include an aggressive price on the project.