5.10. SR 01-07-2019 - Laserfiche WebLink

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December 28, 2018 Justin Femrite, P.E. Public Works Director/Chief Engineer City of Elk River 13065 Orono Parkway Elk River, MN 55330 RE: 2019 Street Improvements – Project Feasibility Dear Mr. Femrite: This letter provides an initial analysis of the feasibility, cost-effectiveness, and necessity of the proposed street improvements. EXISTING CONDITIONS The project study area includes approximately 12.6 miles of existing city streets. These streets were evaluated to determine current pavement conditions and recommended surface improvements. During the preliminary project walk-through conducted on September 20, 2018, the City rated pavement conditions were reviewed and found to range from a PCI rating of 40 to 70 based on a PCI scale to 100. These pavement ratings are used to determine the type of surface improvement that will be most cost effective to maintain the roadway and extend the useful life. Pavement ratings of 40-55 are found to be in a failed condition and are recommended to be fully restored through reclamation and replacement. Pavement ratings of 55-70 are found to be in a condition where overlaying the surface with a 1.5-inch overlay should extend the useful life 20 years. PROPOSED IMPROVEMENTS Due to the condition of the existing pavement the following improvements are proposed: Full Depth Reclamation Full depth reclamation is proposed for the following roadways: - Ranch Road from Meadowvale Road NW to the western City limits - Baldwin Street NW from 225th Avenue NW to the northern City limits - York Street NW between Ranch Road NW and approx. 400 feet south of 212th Avenue NW - 211th Avenue NW from York Street NW to Vernon Street - Proctor Avenue NW from 200 feet south of Hwy 10 to Main Street These existing roadway sections are all rural (with the exception of Proctor Road) and are not proposed to be converted into urban sections (no curb and gutter proposed). The reclamation material is proposed to