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Travel information for US Highway 20 is as follows:

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Variable Speed Limits
Chain Law
Neighboring States

District Comments
District 2 (Central) I25: Crash, left lane blocked near Douglas at milepost 163, expect delays.

District 5 (Northwest)


Conditions
Route Location Conditions Advisories Restrictions Last Report Time Cameras Sensors
Cody
NWS Forecast
Between the E Gate of Yellowstone Nat'l Park and Pahaska Road Closed Due To Seasonal Closure Feb 20, 2026, 01:36 AM    
Between Pahaska and the Shoshone National Forest Boundary Slick with Snowfall Falling Rock None Feb 20, 2026, 01:36 AM    
Between the Shoshone National Forest Boundary and Cody Slick in Spots Falling Rock None Feb 20, 2026, 01:36 AM   Cody (West)  
Between Cody and the Big Horn County Line Slick in Spots None None Feb 20, 2026, 01:36 AM   Eagle Pass  
Basin
NWS Forecast
Between the Big Horn County Line and 4 miles west of Greybull Slick in Spots None None Feb 20, 2026, 04:52 AM   US 14/16/20 / WYO 32 Junction  
Between 4 miles west of Greybull and Greybull Slick in Spots None None Feb 20, 2026, 04:52 AM   Greybull (South)  
Between Greybull and Basin Slick in Spots None None Feb 20, 2026, 05:56 AM   Greybull (South)  
Between Basin and MM 176, Washakie/Big Horn County Line Slick in Spots None None Feb 20, 2026, 05:56 AM   Manderson  
Worland
NWS Forecast
Between Washakie/Big Horn County Line and Worland Slick in Spots None None Feb 20, 2026, 05:50 AM   Worland (South)  
Between Worland and Mile Marker 148, Washakie/Hot Springs County Line Slick in Spots None None Feb 20, 2026, 06:13 AM   Worland (South)  
Thermopolis
NWS Forecast
Between Mile Marker 148, Washakie/Hot Springs County Line and Thermopolis Slick in Spots with Fog Black Ice None Feb 20, 2026, 07:31 AM   Kirby Junction  
Between Thermopolis and Boysen Dam Slick in Spots with Fog Falling Rock, Black Ice US 20 BUS/WY 789 from milepost 116.100 to 116.500
Width restriction: 12 ft
Height restriction: 15 ft
Feb 20, 2026, 06:31 AM   Boysen Dam Wind River Canyon Thermopolis (South)  
Shoshoni
NWS Forecast
Between Boysen Dam and Shoshoni Slick in Spots None None Feb 20, 2026, 01:36 AM   Shoshoni (North) Boysen Dam  
Between Shoshoni and Moneta Slick in Spots None None Feb 20, 2026, 01:36 AM   Moneta Shoshoni (North)  
Between Moneta and Waltman Slick in Spots with Fog None None Feb 20, 2026, 07:41 AM   Waltman Hiland   Hiland
Casper
NWS Forecast
Between Waltman and Casper Slick in Spots None None Feb 20, 2026, 05:28 AM   Natrona   Natrona
Between Casper and Glenrock Slick with Fog None None Feb 20, 2026, 07:00 AM     Hat Six
Douglas
NWS Forecast
Between Glenrock and Douglas Slick None None Feb 20, 2026, 03:00 AM   Natural Bridge Interchange Deer Creek   Deer Creek Hat Six
Between Douglas and I-25, Orin Jct Slick None None Feb 20, 2026, 03:00 AM   Orin Junction East Douglas  
Between I-25, Orin Jct and Lost Springs Slick None None Feb 19, 2026, 03:14 PM    
Lusk
NWS Forecast
Between Lost Springs and Lusk Slick in Spots None None Feb 20, 2026, 05:00 AM   Lusk  
Between Lusk and the Nebraska State Line Slick in Spots None None Feb 20, 2026, 05:00 AM   Duck Creek Van Tassell   Van Tassell

Construction Projects
Project Name Project Number WYDOT Contact Contractor Contact Start Date Completion Date Description Road Milepost(s) Surface Delays Last Updated

No active construction projects reported at this time.

*Chain Law - Level 1 Definition
**Chain Law - Level 2 Definition
Other Definitions

Impact Levels Description / Recommended Action
Low Minimal impacts expected, use general caution.
Moderate Some impacts expected, use extra caution. Stay alert for changing road and weather conditions.
High Dangerous impacts expected, use extreme caution, delay travel or consider alternate route. If travel is necessary, slow down and allow extra time.
CLOSED Per W.S. 24-1-109, motorists traveling on a closed road without permission from WYDOT or WHP may be subject to a fine of up to $750 and/or up to 30 days imprisonment.
Seasonal / Long-Duration Event Impact level used to distinguish long-duration events from emergent events.
All travelers are encouraged to check present conditions and forecasts before departing.