DEPARTMENT: Transportation
FILE TYPE: Regular Information
TITLE
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Information On Top Ten Ranked Safety Critical County Intersections And Corresponding Mitigations - 2023-2025 Review
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PURPOSE/ACTION REQUESTED
Provide an update to County Leadership regarding review of the County's highest-ranked intersections in relation to crashes as well as provide information on corresponding mitigations and studies.
SUMMARY
Every year, Dakota County Traffic staff reviews and logs crashes that occurred on the County transportation system from the prior year in a process called the Intersection Crash Listing (ICL). A Crash Rate Index (CRI) is determined for each intersection by combining crash data from three years prior and calculated by weighting the three-year crashes against traffic volumes and crash comparisons to similar intersections across the state. CRI is an adequate indication of whether an intersection has statistically significant safety concerns.
County staff ranks all intersections by their CRI to help determine where safety improvements can be made or to evaluate what may be causing the crashes. Below are the 2023-2025 highest-ranked CRI intersections on the County network and the corresponding mitigations and evaluations, both planned and in process. Since the ICL utilizes the past three years of crash data, sometimes there are occurrences where an ICL ranking exists after the mitigation has taken place.
ICL Ranking Based on CRI
Intersection
Mitigation/Evaluation
County State Aid Highway (CSAH) 50 and CSAH 60
Striping Updates and Evaluation (2025)
CSAH 33 and December Trail
Control Evaluation (2025)
CSAH 62 and CSAH 85
Mumble Strips Installed (2025) and Further Improvements (2026)
CSAH 46 and Trunk Highway (TH) 52 E Ramp
Temp Signal (2026) and Roundabout Installation (2029)
TH 3 and CSAH 78
Potential Mumble Strip (2026) and Roundabout Installation (Minnesota Department of Transportation led) (2029 or earlier)
CSAH 9 and 190th
Three-Quarter Intersect...
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