Current Statewide Variable Speed Limits


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Interstate 25 - Northbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.


Interstate 25 - Southbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between Casper (mp 189.490 ) and Douglas (mp 140.090) 184.69 181.67 45 Sep 25, 2025, 12:12 PM

Interstate 80 - Eastbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between the Utah State Line (mp 0.000) and Rock Springs (mp 104.790) 14.59 19 65 Sep 25, 2025, 10:25 AM
88.859 90.08 45 Sep 25, 2025, 10:25 AM
90.08 90.45 35 Sep 25, 2025, 10:25 AM
90.45 91.99 35 Sep 25, 2025, 10:25 AM
103.2 104.55 65 Sep 25, 2025, 10:25 AM
104.55 105.65 65 Sep 25, 2025, 10:25 AM
Between Rock Springs (mp 104.790) and Rawlins (mp 215.570) 105.65 107.9 65 Sep 25, 2025, 10:25 AM
131.41 133.93 65 Sep 25, 2025, 10:25 AM
133.93 137.55 65 Sep 25, 2025, 10:25 AM
137.55 140.09 65 Sep 25, 2025, 10:25 AM
143.14 145.44 65 Sep 25, 2025, 10:25 AM
145.44 146.51 65 Sep 25, 2025, 10:25 AM


Interstate 80 - Westbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between Rawlins (mp 215.570 ) and Rock Springs (mp 104.790) 146.51 143.14 65 Sep 25, 2025, 10:25 AM
143.14 141.62 65 Sep 25, 2025, 10:25 AM
138.89 136.37 65 Sep 25, 2025, 10:25 AM
136.37 132.49 65 Sep 25, 2025, 10:25 AM
132.49 130.32 65 Sep 25, 2025, 10:25 AM
Between Rock Springs (mp 104.790 ) and the Utah State Line (mp 0.000) 104.55 103.2 65 Sep 25, 2025, 10:25 AM
90.45 88.85 35 Sep 25, 2025, 10:25 AM
Interstate 90 - Eastbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.


Interstate 90 - Westbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.


Wyoming Highway 28 - Eastbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.


Wyoming Highway 28 - Westbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.