MISSOULA, MT — A comprehensive study detailing one of Western Montana’s busiest highways, U.S. 93, is now available for public review. The “U.S. 93: Missoula to Florence Corridor Study” was released on March 4 and spans 114 pages, offering an in-depth look at the highway’s history, traffic data, safety concerns, and proposed solutions for improvement.
The study, conducted by Robert Peccia and Associates, highlights key findings related to traffic volumes and safety. Traffic on U.S. 93 varies significantly, ranging from 12,000 to 28,000 vehicles per day. The heaviest traffic is concentrated between Lolo and Missoula, with volumes tapering off as the corridor moves southward. Over the past decade, traffic growth has slightly outpaced population growth, with an annual increase of 0.8% compared to a 0.5% growth rate in the region’s population.
One of the more concerning elements of the study is the highway’s crash history. According to crash records provided by the Montana Department of Transportation (MDT), between January 1, 2012, and December 31, 2021, there were 1,118 reported crashes along the corridor. Notably, 18% of these crashes occurred at intersections, and 43% involved at least two vehicles. These statistics underscore the need for safety improvements along the highway.
The study does not only focus on the challenges faced by U.S. 93 but also offers potential solutions to address them. Among the proposed improvements are lane modifications, the addition of new traffic signals, and the construction of roundabouts designed to accommodate multiple lanes. Additionally, the report suggests expanding turn lanes to improve traffic flow and reduce congestion.
Wildlife safety is another critical aspect of the study. Montana Fish, Wildlife and Parks (FWP) contributed to the research, with recommendations for mitigating wildlife-related accidents. Proposed solutions include wildlife fencing, grade-separated crossings, and detection signs to warn drivers of nearby wildlife activity.
The estimated cost for implementing the proposed improvements is $203 million (based on 2025 dollars, not adjusted for inflation). However, the report notes that no funding has been identified for the projects at this time. Despite this, MDT’s core funding programs for National Highway System routes could provide potential support for future development.
The study was supported by various agencies, including MDT, the Federal Highway Administration, and Montana FWP. Public feedback is now being solicited as part of the review process. The study will be available for review until April 4, and residents are encouraged to read the full document, view the designs and concepts, and submit their comments or questions.
To access the study and provide feedback, the public can visit the official MDT website.
