Agenda - Council - 04/12/2016 - Laserfiche WebLink

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4. PROPOSED IMPROVEMENTS 4.1 Bituminous Pavement Overlays 4.1.1 Pavement Condition Evaluation/Ratings City staff generally evaluates and rates the pavement conditions of all city streets on an annual basis using the Pavement and Surface Evaluation Rating (PASER) system. This requires a visual evaluation of each pavement surface throughout the City based on the type, extent and severity of each pavement distress observed. Various 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. The type and severity of each pavement distress is then used to determine the PASER rating for each street segment. This is a numerical index between 1 and 10 that indicates the condition of the pavement based on the various pavement distresses observed. A PASER rating of 10 represents a brand new pavement section, while a PASER rating of 1 represents a pavement section that is in total disrepair requiring complete reconstruction. Once staff gathers the updated field data, it is recorded in a Microsoft Excel pavement management database. This database is used by staff to determine the most cost-effective pavement rehabilitation method for each street segment, and to schedule the annual long- term Street Maintenance Program projects. 4.1.2 Project Area Selection Staff reviewed the pavement management database to identify street segments throughout the City with PASER ratings of 3 or 4 as these are the best candidates for overlays. These segments were then evaluated as to proximity and overall scope to determine which segments could be grouped together to help reduce bid prices related to equipment mobilization, which often accounts for 5% or more of bid prices. The City's 5-year Street Reconstruction and Overlay Plan proposed to overlay two street segments in 2016. These include Sunwood Drive from Ramsey Boulevard to Bunker Lake Boulevard, and Sunwood Drive from Sunfish Lake Boulevard to the bridge west of Nowthen Boulevard. After further consideration staff determined it would be best to wait until 2017 to overlay the segment of Sunwood Drive between Ramsey Boulevard and Bunker Lake Boulevard. This is because Anoka County is proposing to reconstruct the pavement section of Bunker Lake Boulevard from Ramsey Boulevard to Basalt Street, and because a business with access to this segment of Sunwood Drive plans to complete a large building expansion project in 2016. In total, approximately 18,752 square yards of Sunwood Drive between Sunfish Lake Boulevard and the bridge east of 147th Lane and west of Krypton Street are proposed to receive mill and overlay improvements. Exhibits 1 and 2 in Appendix A respectively show the general location and scope of the proposed 2016 mill and overlay project. Feasibility Report 2016 Street Maintenance Program, Division B: Overlay Improvements City of Ramsey Project No. 16-00 Page 4