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Restrictions on US 20: Idaho Falls to Montana
US 20: Idaho Falls to Montana
Between The Menan-Lorenzo Highway (3 miles east of the Rigby area) and ID 33 (Rexburg). Road construction work is in progress. Construction traffic may be merging. Speed restrictions are in force. There is a width limit in effect. Expect delays. Speed limit 55 MPH . Width limit 14'0". Expect 5 - minute delays.. Until October 31.

Web Comment: Traffic is being routed to the interchange ramps in order to construct the mainline of US-20 for the Thornton Interchange. Follow all construction signs, and use caution through the work zone. Direct perpendicular accesses have been closed for construction of the Thornton Interchange. For access to Thornton businesses use Exit 332, and follow the detour. Commercial drivers transporting permitted loads wider than 14 feet need to contact Resident Engineer Wade Allen (208-745-5680), or Staff Engineer Bryan Young (208-745-5682), 24 hours in advance, for special authorization to pass through the construction zone.
Last updated on August 19
Between Exit 332: South Rexburg and Exit 337: Salem Road (near Rexburg). Road construction work is in progress. The roadway is reduced to one lane. There is a width limit in effect. Speed restrictions are in force. Speed limit 45 MPH . Width limit 12'0". Until August 31.
Last updated on July 26
Between 2775 North Road (4 miles west of the Island Park area) and Sawtelle Road (Island Park). Road construction work is in progress. The road is being repaved. Look out for flaggers. Traffic is being held. Expect delays. There is a width limit in effect. Speed restrictions are in force. Width limit 14'0". From 7:00AM MDT to 8:00PM MDT on Mondays and from 6:00AM MDT to 8:00PM MDT on Tuesdays, Wednesdays and Thursdays. Until September 15.

Web Comment: Expect up to 90 min delays.
Last updated on August 3