12-02-2019 Council Packet - Laserfiche WebLink

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WS – Item #3 WORK SESSION STAFF REPORT Work Session Item No. 3 Date: December 2, 2019 To: City Council From: Diane Hankee PE, City Engineer Re: Pavement Management Update and 2020 Mill and Overlay Project Background The City’s Pavement Management Program evaluates the condition of the roadways and provides recommended maintenance. The Program involves rating of one-fourth of the City roadway system mileage per year, and using pavement management software to project the condition of the remainder of the roadways. This information along with traffic volumes, maintenance data, and geotechnical information is used for the City’s Roadway Capital Improvement Planning (CIP). The City’s 2019 Overall Condition Index Map is enclosed. OCI Rating Miles of Road Percent of System Adequate 70-100 64 miles 66.5% Marginal 40-69 20 miles 19.8% Problem 0-39 15 miles 13.7% The City’s roadway system Weighted Average OCI is 71.04. The City has added new roadways in the recent years helping keep the average. It should be noted that the Pavement Management Report identified the need to focus on the Marginal roadways so that they wouldn’t fall into the more expensive Problem category. In addition, WSB has provided a memo for pavement reactive maintenance techniques that provides information on short term solutions for roadways that need reconstruction and cannot be funded at this time. For roadways that are in the Problem category, staff is recommending a 1 to 1 ½-inch “thin” overlay until the City is able to fund a full reconstruct. The thin overlay’s have been incorporated into the City’s Capital Improvement Plan for Mill and Overlays. Enclosed is the updated 5-Year Mill and Overlay Capital Improvement Plan. In coordination the 5-Year Street Reconstruction Plan has been updated. For the Reconstruction Plan, year 2021 has been modified from the previous plan. The Joyer Ln, Karth Rd, and Gaage Ln area has be included with 4th St (Main St to the north) in the 2021 project. The Diane St, 81st St, Danube St, and Elbe St area has be included in the 2024 project. This update is a result of the condition rating, and project maintenance costs. The Mill and Overlay Capital Improvement Plan includes the updated condition ratings, the addition of thin overlays, and consideration of the Anoka County 2021 Birch St Improvements Project construction schedule. The proposed 2020 Mill and Overlay Project includes: