April 15, 2025
Work to rehabilitate 11 bridges on MT 37 between Libby and Eureka (mile markers 0-64 has resumed. Crews are currently working on the bridges located at MM .71, MM 13.79, MM 23.34, MM 29.4, and MM 48.52 – bridges that span the Kootenai River, Cripple Horse Creek, Five Mile Creek, and Lake Koocanusa. Expect 10 to 15-minute delays, reduced speeds, and single-lane traffic when traveling through the project area. There is a 10-foot width restriction in place and wide loads will need to find an alternate route. For the most up-to-date information, width restrictions and road conditions visit 511mt.net.
April 11, 2025
Construction resumes on MT 37 bridge preservation project LIBBY and EUREKA, Mont. - The Montana Department of Transportation (MDT), along with partner Sletten Construction Companies, are resuming bridge preservation activities on eleven bridges on Montana Highway 37 (MT 37).
The bridges included in this project are located between Libby and Eureka between mile marker 0.0 and 64.0. Work will resume this spring at the bridge located at mile marker 13.8.
Work is scheduled to begin the week of April 14th and will take multiple construction seasons to complete. Crews will be working from 6 a.m. to 9 p.m.
Proposed rehabilitation work includes bridge deck replacement or overlay, milling and overlay work on approach roadways, bridge guardrail repairs or replacement, expansion joint replacement, and other minor repairs. The purpose of this bridge preservation project is to extend the service life of the structures.
Expect 10 to 15-minute delays, reduced speeds, and single-lane traffic when traveling through the project area. There is a 10-foot width restriction through the project area. Wide loads will need to find an alternate route. For the most up-to-date width restrictions and road conditions, visit 511mt.net.
The public is encouraged to contact Joan Redeen at 406-396-1978 with any questions or comments.
For more information about active MDT projects around the state, please visit our website and MDT’s five-year Tentative Construction Plan.
Anyone needing an alternative format of this document should contact MDT’s ADA Coordinator at