Agenda - Public Works Committee - 01/17/2017

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2. INTRODUCTION 2.1 Authorization The preparation of this report was authorized by the Ramsey City Council on August 9, 2016. This project has been designated as City Improvement Project No. 17-01. 2.2 Program Overview In support of the City's long-term Street Maintenance Program,the entire existing bituminous pavement section will be reconstructed using a full-depth reclamation (FDR)process. Damaged concrete curb and gutter sections will also be removed and replaced, plus other appurtenant work will be completed as outlined in this report. The City's pavement evaluation process involves a visual evaluation of each street's pavement surface based on the type, extent and severity of each pavement distress observed. Numerous types of pavement distresses may exist within a pavement section including, but not limited to, alligator cracking, block cracking, longitudinal cracking, transverse cracking, rutting, raveling, shoving, potholes and patches. This field data is then used to rate the pavement condition. The City uses the Pavement and Surface Evaluation Rating (PASER) system to rate pavement condition. A PASER rating is a numerical index between 1 and 10 indicating the condition of a pavement based on the various pavement distresses recorded during visual observations. A PASER rating of 10 represents brand new pavement, while a PASER rating of 1 represents a pavement section that has fallen into complete disrepair requiring full reconstruction. In the fall of 2016, City staff evaluated and rated the condition of the pavement along this segment of Alpine Drive. A PASER rating of 3 was determined for the segment of Alpine Drive between Armstrong Boulevard and Variolite Street. 2.3 Scope City of Ramsey Improvement Project 17-01 proposes to reconstruct the existing bituminous pavement, to remove and replace damaged concrete curb and gutter sections, and to complete other appurtenant work on Alpine Drive between Armstrong Boulevard and Variolite Street which totals approximately 3,600 linear feet(0.68 miles)in length. The existing bituminous pavement section is proposed to be reconstructed using the FDR process. This involves reclaiming the entire bituminous pavement section along with the existing recycled concrete base, hauling and disposing of the excess reclaim material off site, mixing and spreading the stabilized reclaimed material on top of the reshaped and compacted subgrade, then placing 3.5 inches of new bituminous pavement on top. This results in a 10-ton pavement design that meets current State Aid standards. A map showing the location and scope of the proposed improvements is included as Figure I in Appendix A. Feasibility Report Alpine Drive Reconstruction City of Ramsey Project No.I7-0I Page 3