Agenda - Council - 02/14/2017 - Laserfiche WebLink

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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. 17-00. 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 stabilized full -depth reclamation (SFDR) process. All 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 Sunwood Drive. A PASER rating of 4 was determined for the segment of Sunwood Drive between Bunker Lake Boulevard and Ramsey Boulevard. 2.3 Scope City of Ramsey Improvement Project 17-00 proposes to reconstruct the existing bituminous pavement, to remove and replace damaged concrete curb and gutter sections, and to complete other appurtenant work on Sunwood Drive between Ramsey Boulevard/CSAH 56 and Bunker Lake Boulevard /CSAH 116 which totals approximately 3,050 linear feet (0.58 miles) in length. The existing bituminous pavement section is proposed to be reconstructed using the SFDR process. This involves milling the top 3 inches of existing bituminous pavement, reclaiming the remaining bituminous pavement along with approximately 2 inches of existing aggregate base, injecting an asphalt emulsion stabilizer into the reclaimed material, mixing and spreading the stabilized reclaimed material on top of the reshaped and compacted subgrade, then placing 4 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 1 in Appendix A. Feasibility Report Sunwood Drive Reconstruction City of Ramsey Project No. 17-00 Page 3