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Travel information for US Highway 20 is as follows:

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Frequently Asked Questions Closures & Advisories
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Variable Speed Limits
Chain Law
Neighboring States

District Comments
District 2 (Central)
District 5 (Northwest) WY28: Stalled semi truck, travel lane blocked between Lander and Farson at milepost 54.5, be prepared to stop, expect delays.


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 Mar 5, 2026, 08:38 AM    
Between Pahaska and the Shoshone National Forest Boundary Wet, Slick in Spots with Snowfall Falling Rock None Mar 6, 2026, 09:29 AM    
Between the Shoshone National Forest Boundary and Cody Wet, Slick in Spots with Snowfall Falling Rock None Mar 6, 2026, 09:29 AM   Cody (West)  
Between Cody and the Big Horn County Line Wet, Slick in Spots with Snowfall None None Mar 6, 2026, 04:36 AM   Eagle Pass  
Basin
NWS Forecast
Between the Big Horn County Line and 4 miles west of Greybull Wet None None Mar 6, 2026, 11:02 AM   US 14/16/20 / WYO 32 Junction  
Between 4 miles west of Greybull and Greybull Wet None None Mar 6, 2026, 11:02 AM   Greybull (South)  
Between Greybull and Basin Wet None None Mar 6, 2026, 04:18 AM   Greybull (South)  
Between Basin and MM 176, Washakie/Big Horn County Line Dry None None Mar 6, 2026, 11:35 AM   Manderson  
Worland
NWS Forecast
Between Washakie/Big Horn County Line and Worland Dry None None Mar 6, 2026, 05:54 AM   Worland (South)  
Between Worland and Mile Marker 148, Washakie/Hot Springs County Line Dry None None Mar 6, 2026, 07:30 AM   Worland (South)  
Thermopolis
NWS Forecast
Between Mile Marker 148, Washakie/Hot Springs County Line and Thermopolis Dry None None Mar 6, 2026, 11:02 AM   Kirby Junction  
Between Thermopolis and Boysen Dam Wet with Snowfall Falling Rock US 20 BUS/WY 789 from milepost 116.100 to 116.500
Width restriction: 12 ft
Height restriction: 15 ft
Mar 6, 2026, 08:52 AM   Boysen Dam Wind River Canyon Thermopolis (South)  
Shoshoni
NWS Forecast
Between Boysen Dam and Shoshoni Wet None None Mar 6, 2026, 07:29 AM   Shoshoni (North) Boysen Dam  
Between Shoshoni and Moneta Wet None None Mar 6, 2026, 01:04 PM   Moneta Shoshoni (North)  
Between Moneta and Waltman Wet, Slush with Snowfall None None Mar 6, 2026, 01:44 PM   Waltman Hiland   Hiland
Casper
NWS Forecast
Between Waltman and Casper Wet with Rain None None Mar 6, 2026, 10:42 AM   Natrona   Natrona
Between Casper and Glenrock Dry None None Mar 6, 2026, 01:31 AM     Hat Six
Douglas
NWS Forecast
Between Glenrock and Douglas Dry None None Mar 6, 2026, 02:19 PM   Natural Bridge Interchange Deer Creek   Deer Creek Hat Six
Between Douglas and I-25, Orin Jct Dry None None Mar 6, 2026, 02:19 PM   Orin Junction East Douglas  
Between I-25, Orin Jct and Lost Springs Dry None None Mar 6, 2026, 02:19 PM    
Lusk
NWS Forecast
Between Lost Springs and Lusk Wet with Snowfall None None Mar 6, 2026, 09:27 AM   Lusk  
Between Lusk and the Nebraska State Line Dry None None Mar 6, 2026, 01:31 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.