US-12 between Junction Montana 88-Garrison and 5.50 miles W of Junction Interstate 15 and US 287 South-Helena


The following construction project is in effect: chip sealing between MacDonald Pass and 6.25 miles east of MacDonald Pass including delays up to 15 minutes, flaggers present, and reduced speed limited to 45 MPH (travelers can expect single lane closures, loose gravel, and single lane traffic).