Interstate 80 in Wyoming

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Interstate 80
Dwight D. Eisenhower Highway (from US 101 in San Francisco to I-25 in Cheyenne) Purple Heart Trail
I-80 highlighted in red
Route information
Maintained by WYDOT
Length	402.76 mi[1] (648.18 km)
NHS	Entire route
Major junctions
West end	I-80 / US 189 at Utah state line
Major intersections	US 189 near Evanston US 30 near Granger US 191 in Rock Springs US 287 in Rawlins US 287 in Laramie I-25 / US 87 near Cheyenne I-180 / US 85 in Cheyenne
East end	I-80 at Nebraska state line
Location
Country	United States
State	Wyoming
Counties	Uinta, Sweetwater, Carbon, Albany, Laramie
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Wyoming State Highway System Interstate US State
← WYO 78 → US 85

Interstate 80 (I-80) is a part of the Interstate Highway System that runs from San Francisco, California, to Teaneck, New Jersey. In Wyoming, the Interstate Highway runs 402.76 miles (648.18 km) from the Utah state line near Evanston east to the Nebraska state line in Pine Bluffs. I-80 connects Cheyenne, Wyoming's capital and largest city, with several smaller cities along the southern tier of Wyoming, including Evanston, Green River, Rock Springs, Rawlins, and Laramie. The highway also connects those cities with Salt Lake City to the west and Omaha to the east. In Cheyenne, I-80 intersects I-25 and has Wyoming's only auxiliary Interstate, I-180. The Interstate runs concurrently with US Highway 30 (US 30) for most of their courses in Wyoming. I-80 also has shorter concurrencies with US 189 near Evanston, US 191 near Rock Springs, and US 287 and Wyoming Highway 789 (WYO 789) near Rawlins. The Interstate has business loops through all six cities along its course as well as a loop serving Fort Bridger and Lyman east of Evanston.