Agenda - Council - 01/08/2019 - Laserfiche WebLink

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Our !Almon: To work together to respcaibty grow Our community, and to provide quality, COM4ffeciive, and efficient government ser ices. CC Regular Session 7. 2. Meeting Date: 01/08/2019 By: Bruce Westby, Engineering/Public Works Information Title: Adopt Resolution # 19-012 Accepting Petition Opposing Brookview Estates Street Reconstructions, Improvement Project #19-02 Purpose/Background: Purpose: The purpose of this case is to consider adopting Resolution #19-012 accepting a petition opposing Brookview Estates Street Reconstructions, Improvement Project #19-02. Background: City Improvement Project No. 19-02 proposes to reconstruct streets within the Brookview Estates neighborhood including 173rd Avenue and Germanium Street measuring approximately 2,662 feet (0.50 miles) in length. Appendix A of the attached Feasibility Report includes a figure showing the project scope and pictures of the existing streets. A project location map is attached to this case. These streets were constructed in 1979 as rural sections with bituminous pavement at a width of 24 feet, and are generally centered within a 66-foot wide right-of-way. City staff annually evaluates and rates the condition of pavement sections on all City streets using the Pavement Surface Evaluation and Rating (PASER) system. In the summer of 2018, these pavement sections had a PASER rating of 3 indicating these streets require reconstruction. Existing Conditions The existing bituminous pavement section ranges from 2.0 to 6.0 inches thick, with a median thickness of 3.6-inches. The aggregate base ranges from 0.8 to 5.0 inches thick, with a median thickness of 2.7-inches. These depths were determined from Ground Penetrating Radar (GPR) analysis performed by Braun Intertec in 2017, as well as from field observations and record plan documents. Copies of Braun Intertec's GPR results are attached in Appendix C of the attached Feasibility Report. The pavement subgrade primarily consists of poorly graded sands with silts, which is acceptable for pavement support with proper preparation. The storm sewer system generally consists of ditches along both sides of the streets within right-of-way and/or drainage and utility easements. Storm runoff collects in the ditches along Germanium Street and is carried north to the Trott Brook through an outlet pipe located in the north cul-de-sac. Storm runoff collects in the ditches along 173rd Avenue and flows across land to the Rum River to the east. Proposed improvements This project proposes to reconstruct the existing bituminous pavement sections using the Full Depth Reclamation (FDR) process that involves reclaiming the existing bituminous pavement section with a portion of the underlying aggregate base. The reclaimed (ground and mixed) material would be spread and compacted on top of reshaped and compacted aggregate base or subgrade. Three and one-half inches of new bituminous pavement would then be