Agenda - Council - 04/14/2020 - Laserfiche WebLink

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The street improvements proposed with this project are identified in the City's current 10-year Capital Improvement Program (CIP), and can be funded using a combination of Municipal State Aid Funds and Stormwater Funds. Sanitary Sewer and Watermain improvements were not listed in the CIP but are required to support future needs, and are feasible and cost-effective. This project would best be constructed as a stand-alone project and is necessary, feasible, and cost- effective from an engineering standpoint, and can be constructed as proposed herein. 2. INTRODUCTION 2.1 Authorization Preparation of this feasibility report was authorized by the Ramsey City Council on December 10, 2019. 2.2 Program Overview This project is designated as Variolite Street Reconstruction, Improvement Project No. 20-01. This feasibility report explores proposed reconstruction of Variolite Street by the Stabilized Full - Depth Reclamation (SFDR) method, which includes reclamation of the existing bituminous pavement and underlying aggregate base and mixing asphalt emulsion into the reclaimed material to give additional strength, then placing 4-inches of new bituminous pavement on top. The Public Works Committee directed Staff to explore pedestrian crossing improvements at 161st Avenue and traffic calming options along the corridor. The proposed pedestrian crosswalk improvements at the intersection of Variolite Street and 161st Avenue are included in Appendix A. To address traffic calming, Staff proposes narrowing the pavement and reducing the speed limit to 40 mph south of 163rd Avenue. The proposed typical section is included in Appendix A. Per the 2040 Comprehensive Plan, trunk sanitary sewer and watermain improvements are needed to serve portions of the City north of Trott Brook. Therefore, the existing trunk sanitary sewer force main is proposed to be replaced with gravity sewer, and trunk watermain will be extended north to 173rd Avenue. A figure showing the location and scope of the proposed improvements is included in Appendix A. 2.3 Scope City Improvement project 20-01 proposes to reconstruct the existing bituminous pavement, narrow the pavement width south of 163rd Lane, improve the pedestrian crosswalk at 161st Avenue, tie-in to existing ditches, replacing force main trunk sanitary sewer with gravity sewer, extent trunk watermain, and complete other appurtenant work to Variolite Street between Alpine Drive and 173rd Avenue, which totals approximately 12,000 linear feet (2.28 miles) in length. Feasibility Report Variolite Street Reconstruction City of Ramsey Project No. 20-01 2