Agenda - Public Works Committee - 12/13/2011

Home

1. EXECUTIVE SUMMARY This project has been entitled the Armstrong Boulevard and Relocated Sunwood Drive Intersection improvements. This project was initiated to accommodate the relocation of Sunwood Drive which is required by the recommended plan for the improvement of the intersection of TH 10 and Armstrong Boulevard to a grade separated interchange including a grade separation of Armstrong Boulevard over the BNSF railroad. The project proposes the following improvements: 1.1 Street and Intersection Reconstruction It is proposed to reconstruct Armstrong Boulevard to a four -lane divided roadway with one left -turn and one right -turn lane in the northbound direction and one left -turn and one right -turn lane in the southbound direction. The total project length on Armstrong Boulevard is approximately 1100 feet. The project would also reconstruct approximately 350 feet of 147th Avenue west of Armstrong Boulevard in order to realign 147th Avenue with the relocated Sunwood Drive. It is proposed that the intersection of relocated Sunwood Drive and Armstrong Boulevard would be signalized. The proposed project is shown in Figure 2 in Appendix A of this report. The improvements are consistent with the long-term interchange layout for the TH 10 and Armstrong Boulevard intersection. The preferred TH 10 and Armstrong Boulevard interchange layout is shown in Figure 3 in Appendix A of this report. 1.2 Storm Sewer Improvements Storm sewer improvements are proposed to carry the runoff from the reconstructed roadway to an existing storm water pond located on the east side of Armstrong Boulevard north of the relocated Sunwood Drive. 1.3 Trail Construction An 8-foot trail on the east of Armstrong Boulevard between the relocated Sunwood Drive and Bunker Lake Road is proposed. This trail would tie into trails on Bunker Lake Boulevard and on the west side of Armstrong Boulevard north of Bunker Lake Boulevard. It would also connect to a new trail on relocated Sunwood Drive. 1.4 Sanitary Sewer Adjustments The project will require the adjustment of three sanitary sewer manholes to accommodate the raised grade on Armstrong Boulevard 1.5 Water Main Extension It is proposed to extend the 12-inch water main at relocated Sunwood Drive from the east side of Armstrong Boulevard to the west side of Armstrong Boulevard and continue the water main to the end of construction on 147th Avenue. The total estimated project cost is approximately $1.725 million dollars. Funding for the project will be determined for the final feasibility study. It is proposed that the project be constructed in 2012. Feasibility Report Armstrong Boulevard and Relocated Sunwood Drive Intersection Improvements City of Ramsey, MN WSB Project No. 1973-010 Page 1