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Mid -Term Improvements <br />• Armstrong Boulevard & Alpine Drive: Add northbound and southbound left turn lanes. <br />Modify eastbound and westbound lanes to include a thru/left and a right turn lane. <br />• Alpine Drive & Puma Street: Add a westbound left turn lane and eastbound right turn <br />lane. <br />• Armstrong Boulevard & Bunker Lake Boulevard: Re -stripe southbound lanes to include <br />a dual southbound left turn lane. A southbound double left turn lane will help reduce <br />queues entering the COR development. Improvements were done in 2011 to this <br />intersection and a future southbound left turn lane was designed, but not striped. <br />Long -Term Improvements <br />• Armstrong Boulevard & Bunker Lake Boulevard: Modify the southerly eastbound <br />through lane to a through -right lane. Another option would be to keep the two through <br />lanes and modify the right turn lane into a free right with an add lane that runs south <br />to T.H. 10. <br />Alternative Improvements <br />At several locations along the corridor, opportunities exist for implementation of alternative <br />alignments. These are depicted as options to consider based on development concepts. <br />Alternative concepts are depicted at the intersection of Bunker Lake Boulevard and Puma Street <br />(Figure 10) and the intersection of Puma Street and Alpine Drive (Figure 12). The alternatives are <br />provided for future discussion and will not significantly impact project costs. <br />Figures 5 through 12 in Appendix A depict future roadway and intersection improvements in the study <br />area. <br />Sanitary Sewer and Water Main <br />An 18 -inch sanitary sewer main was extended west along Bunker Lake Boulevard as a portion of the <br />2011 improvements. Based on information contained in the Comprehensive Plan, The 18 -inch line will <br />be extended along Bunker Lake Boulevard and north along Puma Street. North of the Puma <br />Street/Bunker Lake Boulevard intersection, grade becomes an issue and a sanitary sewer lift station is <br />required to serve areas further north and west. North of the lift station, the Comprehensive plan <br />indicates a 12 -inch gravity main will be adequate to convey sanitary sewer flows from the area. <br />A 16 -inch water main was extended west along Bunker Lake Boulevard as a portion of the 2011 <br />improvements. The Comprehensive plan indicated that either a 12 -inch or a 16 -inch water main would <br />be required along Bunker Lake Boulevard and Puma Street, depending on the final selected location of a <br />future water treatment plant to be constructed in this area. For our analysis, we assumed a 16 -inch <br />water main would be constructed. <br />Prepared by: Bolton & Menk, Inc. ADDITIONAL ANALYSIS <br />City of Ramsey — Future Business Park Page 8 <br />