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US 20 in both directions: Road maintenance operations, slow moving maintenance vehicle, work on the shoulder, observe signs, follow the sign.
US 20 in both directions: Road maintenance operations.

Between ID 33 and Argon National Engineering Lab Road (3 to 23 miles east of the Butte City area). Road maintenance work is in progress. Look out for a slow moving maintenance vehicle. There is work on the shoulder. Observe the signs. Follow the signs. Until August 31, 2019 at about 7:00PM MDT.

Last updated on August 2
US 20 in both directions: Road maintenance operations.
Map of US 20 in both directions: Road maintenance operations.
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