Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
US 20
US 20: Road closed to traffic, due to bridge construction work, detour in operation.
Between Avenue A and University Drive (near Boise). The road is closed to traffic due to bridge construction work. A detour is in operation. Until October 1.

Web Comment: The east end of Cesar Chavez Lane will be closed through late summer as part of the Broadway Bridge Replacement Project. The closure will allow crews to create a larger work zone for upcoming construction activities and keep the project on schedule the Greenbelt on the south side of the Boise River will be fully closed from west of Broadway Avenue to the Parkcenter Bridge. This section of the Greenbelt in downtown Boise will remain closed to all Greenbelt users through the summer. To cross the Boise River, pedestrians and cyclists will use the Bay Brook Bridge and Friendship Bridge. Signs will be placed along the Greenbelt to help guide and notify users of adjustments to the detour route around the Broadway Bridge construction zone.

More Info: broadway
Last updated today at 8:01am MDT
US 20 in both directions: Road construction, roadway reduced to two lanes, construction traffic merging, speed restrictions in force, width limit in effect, delays.
Between The Menan-Lorenzo Highway (3 miles east of the Rigby area) and ID 33 (Rexburg). Road construction work is in progress. The roadway is reduced to two lanes. 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 northbound ramps via crossovers. 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 June 20
US 20 eastbound: Road maintenance operations, seal coat, loose gravel, alternating lane closures, look out for flaggers, pilot car in operation, width limit in effect, delays.
Between The North Fork Teton River Bridge (1 mile east of the Sugar City area) and North River Road (1 mile east of the Ashton area). Road maintenance work is in progress. A seal coat treatment has been applied. Look out for loose gravel on the roadway. There are alternating lane closures. Look out for flaggers. A pilot car is in operation. There is a width limit in effect. Expect delays. Width limit 15'0". Until July 20.
Last updated today at 9:22am MDT
Switch to Winter Driving Conditions
Switch to Road Reports
Truck Restrictions on US 20
Map of Reports on US 20 Between Jerico Road (near Eagle) and City Street (Boise). Road construction work is in progress. The road is being repaved. The roadway is reduced to one lane. Look out for flaggers. Expect delays. Consider using an alternate route. Speed restrictions are in force. Truck speed limit 35 MPH. From 10:00PM MDT to 5:00AM MDT daily. Until August 28. Between Avenue A and University Drive (near Boise). The road is closed to traffic due to bridge construction work. A detour is in operation. Until October 1. Between Cinder Butte Road (2 miles west of the Idaho Falls area) and The Old Butte Highway (Idaho Falls). Utility work is in progress. Until Friday, at about 5:00PM MDT. Between The Menan-Lorenzo Highway (3 miles east of the Rigby area) and ID 33 (Rexburg). Road construction work is in progress. The roadway is reduced to two lanes. 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. Between Burton Road (4 miles west of the Rexburg area) and The Menan-Lorenzo Highway (3 miles east of the Rigby area). Bridge maintenance work is in progress. The right lane is closed. Until today at about 5:00PM MDT. Between The North Fork Teton River Bridge (1 mile east of the Sugar City area) and North River Road (1 mile east of the Ashton area). Road maintenance work is in progress. A seal coat treatment has been applied. Look out for loose gravel on the roadway. There are alternating lane closures. Look out for flaggers. A pilot car is in operation. There is a width limit in effect. Expect delays. Width limit 15'0". Until July 20. Between 2050 North Road (7 miles east of the Ashton area) and Boot Jack Pass Road (Island Park). Road construction work is in progress. The road is being repaved. A seal coat treatment has been applied. Look out for loose gravel on the roadway. A pilot car is in operation. Look out for flaggers. Expect long delays. From 7:00AM MDT to 8:00PM MDT on Mondays, Tuesdays, Wednesdays and Thursdays. Until August 31.
US 20: Road closed to traffic, due to bridge construction work, detour in operation.
US 20 in both directions: Road construction, roadway reduced to two lanes, construction traffic merging, speed restrictions in force, width limit in effect, delays.
US 20 eastbound: Road maintenance operations, seal coat, loose gravel, alternating lane closures, look out for flaggers, pilot car in operation, width limit in effect, delays.
Google Static Map Image
Closure Closure Restriction Restriction Spring Breakup Spring Breakup
Truck Ramp Truck Ramp Weigh Station Weigh Stations