Agenda - Council - 05/14/2019 - Laserfiche WebLink

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Our Mistioi}: To work together to reipoiibly grew our comma nityr, and to provide quality, cent-oliBcdwe, and efficient government services. CC Regular Session 7. 2. Meeting Date: 05/14/2019 By: Bruce Westby, Engineering/Public Works Information Title: Adopt Resolution #19-113 Accepting Bids and Awarding Contract for Improvement Project #19-01, Ford Brook Estates Street Reconstructions Purpose/Background: Purpose: The purpose of this case is to adopt Resolution #19-113 accepting bids and awarding a contract for construction for Improvement Project #19-01, Ford Brook Estates Street Reconstructions. Background: Attached is a copy of the plans prepared by City staff for Improvement Project #19-01, Ford Brook Estates Street Reconstructions, which proposes to reconstruct 180th Lane and Krypton Street in the Ford Brook Estates neighborhood. Maps attached to this case show the general location and scope of the proposed improvements. Existing Conditions Krypton Street and 180th Lane were constructed in 1981 as rural sections with bituminous pavement at a width of 24 feet and measure approximately 860 feet (0.16 miles) in length. Both streets are generally centered within a 66-foot wide right-of-way. Attached is a street segments summary that includes other existing conditions such as curb type, PASER rating, maintenance history, and pavement section information obtained from ground penetrating radar. The existing bituminous pavement section ranges between 1.2 and 6.4 inches thick, with a median thickness of 4.3 inches. The existing aggregate base section ranges between 2.4 and 6.8 inches thick, with a median thickness of 4.1 inches. Section thicknesses were obtained using Ground Penetrating Radar (GPR) analysis performed by Braun Intertec in 2017. The pavement section was built on silty sand and lean clay subgrade materials. Clay subgrade is not good for pavement support and typically requires subgrade corrections. The City annually evaluates and rates the condition of pavement on all City streets using the Pavement Surface Evaluation and Rating (PASER) system. In the summer of 2018, the pavement of the above referenced street segments were rated with PASER ratings of 2 indicating that these streets require complete reconstruction. The storm sewer system consists of ditches along both sides of the streets within the right-of-way and drainage and utility easements. Storm runoff is generally carried in the ditches to the ditch along TH 47 and directed north to Ford Brook. Municipal utilities (sanitary sewer and watermain) do not serve this neighborhood. Proposed Improvements