Agenda - Council - 10/08/2019 - 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 6. 1. Meeting Date: 10/08/2019 By: Bruce Westby, Engineering/Public Works Information Title: Adopt Resolution #19-236 Adopting Assessment Roll Certifying Assessments for Improvement Project #19-01, Ford Brook Estates Street Reconstructions Purpose/Background: Purpose: The purpose of this case is to conduct the required Assessment Hearing and adopt Resolution #19-236 adopting the final assessment roll certifying assessments for Improvement Project #19-01, Ford Brook Estates Street Reconstructions. Background: City Improvement Project # 19-01, Ford Brook Estates Street Reconstructions, included the reconstruction 180th Lane and Krypton Street in the Ford Brook Estates neighborhood. Maps attached to this case show the general location and scope of the completed improvements. Original 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 depicting the original conditions including curb type, PASER rating, maintenance history, and pavement section information obtained from ground penetrating radar. The existing bituminous pavement section ranged between 1.2 and 6.4 inches thick, with a median thickness of 4.3 inches. The existing aggregate base section ranged 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 original pavement section was built on silty sand and lean clay subgrade materials. Clay subgrade is not good for pavement support, requiring 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 consisted of ditches along both sides of the streets within the right-of-way and drainage and utility easements. Storm runoff was generally carried in ditches to the ditch along TH 47 where it was directed north to Ford Brook. Municipal utilities (sanitary sewer and watermain) do not serve this neighborhood.