TH 36/Lexington Avenue Area Modeling Study, Roseville, Minnesota

The TH 36 bridge over Lexington Avenue is rated structurally deficient and functionally obsolete, and Mn/DOT has programmed this bridge for replacement in 2009. Additionally, the existing Lexington Avenue and Hamline Avenue ramps at TH 36 do not meet current standards for safety and geometric design. A way to bring these ramps into compliance with current standards is to lengthen and straighten the Lexington Avenue ramps at TH 36, which would require the closure of the westbound Hamline Avenue ramps at TH 36. Closing the westbound Hamline Avenue ramps at TH 36 would have impacts at other interchanges and intersections in the area.

The purpose of this study is to develop traffic models and investigate the traffic impacts that closing the westbound Hamline Avenue ramps at TH 36 will have on the surrounding road network. The intersections to include in the study area were determined by Mn/DOT, Ramsey County, and the City of Roseville. The study area is shown in Figure 1 and includes 23 intersections