Business Loop I-90 - Mullan

The Mullan Business Loop follows River Street (former U.S. 10) and Friday Avenue east from a wye interchange (Exit 68) with Interstate 90 east to the Atlas Road interchange (Exit 69) through the historic downtown area. The route measures 1.00 mile in length (ITD, 2026).

References

Idaho Transportation Department (ITD). (2026, January 25). I-90 Business Loop. Milepoint Log - State Highway System. Retrieved from https://apps.itd.idaho.gov/apps/milepointlog/logs/interState/I_90_MPLog.pdf

Updated August 1, 2026