Agenda - Council - 11/09/2010 - Laserfiche WebLink

Home

Feasibility Report Bunker Lake Boulevard Extension City of Ramsey are authorized, the construction of the intersection improvements will likely be incorporated and bid as one construction contract. The costs of the signal improvements and improvements to the north, south and east legs of the intersection are not included in this report. E. Street and Trail Improvements 1. Bunker Lake Boulevard The initial plan for street improvements is to provide a two-lane street from Armstrong Boulevard to Puma Street. The two-lane street will be designed to provide for future widening and expansion as development and other potential transportation improvements surrounding the area increase traffic on this roadway. The Petitioner has requested that the street end in a temporary cul-de-sac, but the City has determined that the length of this dead end exceeds their standards and the roadway will need to be extended to Puma. The new roadway will be designed to meet Municipal State -Aid (MSA) requirements. The recommended design for the Phase I project is to provide for two 12 -feet wide driving lanes with curb and gutter on the north side of the street. The south side of the street will remain uncurbed to allow for future expansion of the street with minimal removals. A 4 -feet wide curb reaction distance from the curbed lane is recommended. Design speeds up to 50 MPH on the platted curves could be accommodated with superelevation. With no superelevation on the roadway, the design speed would be limited to 40 MPH. Design speed and Armstrong intersection geometry details will be determined during final design. The Comprehensive Plan indicates that projected traffic on this roadway could be 11,000 ADT if the street is part of a future Mississippi River crossing. Without being part of a River crossing, the Comprehensive Plan provides 20 -year projections of 5,000 ADT. The structural section of the roadway will be designed to accommodate the projected 5,000 ADT and in accordance with state -aid standards for a 9 -ton design. Structural strength for the high-end traffic projection of 11,000 ADT can be attained with a one - Prepared By: R16.102774 Bolton & Menk, Inc. November 2010