The two offset intersections of CSAH 12 with CR 53 in Anoka County presented safety and operational challenges. Through this project, Stonebrooke identified several geometric alternatives that would increase safety and operational efficiency, while allowing for the most efficient use and development of the vacant 30-acre parcel to the west.
Our project work included field reviews, crash analysis (including crash rate, frequency, type, contributing factors, comparison to statewide averages, etc.), trip generation and distribution, traffic forecasting, level of service analysis, alternatives development and analysis, concept layout development, recommended preferred alternative, and development of a geometric layout and cost estimate. The county moved forward with the single roundabout option and re-engaged Stonebrooke to write the roundabout justification report and provide peer reviews of the county-led final design.