Agenda - Council - 03/24/2020 - Laserfiche WebLink

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CC Regular Session 5. 6. Meeting Date: 03/24/2020 By: Bruce Westby, Engineering/Public Works Information Title: Adopt Resolution 1t20 011 Accepting Feasibility Report for Amended 2020 Overlay Improvements, Improvement Project #20 02A Please Note: this Consent Item was moved to the Regular Agenda to be considered as Item 7.3. Purpose/Background: Purpose: The purpose of this case is to adopt Resolution #20-044 accepting the Feasibility Report for proposed Amended 2020 Overlay Improvements, Improvement Project #20-02A. Background: On December 10, 2019, the City Council ordered Staff to prepare a Feasibility Report to explore proposed mill and overlay improvements to streets in the Klemish and Flores, Sunfish Square, and Windemere Woods neighborhoods in 2020 per the 2020 — 2029 Capital Improvement Program (CIP). This was designated as City Improvement Project #20-02. In summary, the proposed improvements were not found to be feasible or cost-effective from an engineering standpoint and Staff recommended not completing such improvements in 2020. Instead, Staff recommended reconstructing the streets using full -depth reclamation improvements after their PASER ratings fall to a rating of 3 or less. On February 24, 2020, the City Council accepted Staff's conclusions and recommendations and ordered a new Feasibility Report for amended 2020 mill and overlay improvements, designated as City Improvement Project #20-02A. This project proposes to complete 2-inch bituminous pavement mill and overlay improvements, and other associated appurtenant improvements, to 2.82 miles of public street segments located in the residential neighborhoods of Regency Pond 1st, 2nd and 3rd Additions, as well as in Business Park 95 1st, 2nd, 5th and 7th Additions. These streets were proposed to receive bituminous pavement overlay improvements in 2022 and 2024 respectively per the 2020 - 2029 Capital Improvement Program (CIP). Based on City records and observed pavement conditions, Staff felt these streets would support 2-inch mill and overlay improvements in 2020. On March 2, 2020, WSB and Associates extracted pavement cores from each of the street segments for the purpose of verifying that the thickness and structural capacity of the existing pavement sections would support 2-inch mill and overlay improvements. Unfortunately, the cores revealed that the pavement on a majority of the street segments is either too thin, or is in such poor condition, that 2-inch mill and overlay improvements would not be feasible or cost-effective. A copy of the final Feasibility Report is attached to this case. A copy of WSB's pavement forensics report, including the locations and pictures of the pavement cores, is included in Appendix D of the Feasibility Report. On March 16, 2020, Staff presented this information to the Public Works Committee. After a brief discussion, the Committee unanimously supported Staff's conclusions and recommendations that the proposed Amended 2020 Pavement Overlay Improvements are not feasible or cost-effective from an engineering standpoint, that the improvements as proposed should not be completed in 2020, and that additional streets should not be evaluated for 2020 mill and overlay improvements. Notification: