8.1 SR 02-21-2023 - Laserfiche WebLink

Home Browse Search

HIGHWAY 10 CORRIDOR STUDY - FINAL REPORT • The Intersections of 173rd Avenue and 165th Avenue had crash rates just under the statewide expected crash rate. • Majority of the crashes occurred at intersections (61 percent) and were mostly rear end and angle crash types. Majority of the rear end crashes were for westbound vehicles at the signalized intersection of 171st Avenue. ACCESS • Current access along Highway 10 does not meet the MnDOT guidelines for access spacing. • Most land adjacent to Highway 10 is agricultural and impacts on this land should be minimized. SOCIAL, • Several water resources are in the study area. Future ENVIRONMENTAL, recommendations should minimize impacts to floodplains, wetlands, or AND ECONOMIC drinking water supply management areas. CONTEXT • The roadway is close to many potentially contaminated sites and must minimize interaction with these sites. • The Oliver Kelley Farm, a nationally registered historic property, is located directly adjacent to the corridor. Alternatives Considered The alternative development process was multifaceted using a range of inputs including technical data, public comments, design parameters, and guidance from the PMT and TAB. The primary goal was to identify a unified vision for the Highway 10 corridor that can be implemented over time as opportunities arise and funding becomes available. Given the complexity and needs of the area, this vision may take 20+ years and significant fiscal investment to realize. Therefore, this study is the first step in the process and additional planning, environmental, design, and engagement efforts will be needed in the future. The initial long-term alternatives that were considered include: • A No Build alternative, which is also known as the do-nothing option. • Alternative 1, which is an at-grade signalized corridor alternative that would include the addition of new traffic signals along the corridor coupled with access modifications and acceleration lanes. • Alternative 2 represents a more innovative at-grade corridor alternative, which includes a combination of reduce conflict intersections (also known as RCIs) along with potentially more traffic signals, access modifications, and acceleration lanes. • Alternative 3 is a grade-separated corridor alternative that provides a free flow option for Highway 10 motorists. This free flow corridor would be accomplished through a series of new interchanges, bridges, and/or on or off ramps. This alternative would also include access closures along Highway 10. A comprehensive evaluation of each alternative was completed. Evaluation criteria was developed based on the existing conditions analysis and centered around safety, mobility and convenient access being high priorities for the corridor. Bike and pedestrian accommodations, project costs and right-of-way impacts were also used in the evaluation process. The results of the preliminary evaluation showed that alternative 3, which is the grade-separated corridor alternative, meets the majority of the evaluation criteria well, with the exception of cost. This alternative has the highest costs; however, it provides the best safety and mobility for all users. �GHW4Y `� ■ _ , �Rp.IhJRih`o