Wyoming Highway 377

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Wyoming Highway 377 marker

Wyoming Highway 377
Point of Rocks Road
Route information
Maintained by WYDOT
Length: 1.96 mi[1] (3.15 km)
Major junctions
West end: I‑80 / US 30 in Point of Rocks
East end: 9 Mile Road near Jim Bridger Power Plant
Counties: Sweetwater
Highway system

State highways in Wyoming

WYO 376 WYO 387
WYO 28 US 30.svg WYO 30

Wyoming Highway 377 is a fairly short 1.96-mile (3.2 km) Wyoming state road in central Sweetwater County that serves the community of Point of Rocks and the Jim Bridger Power Plant.

Route description[edit]

Wyoming Highway 377 begins its western end at exit 130 of Interstate 80/US 30 in Point of Rocks, a Census-designated place located east of Rock Springs. WYO 377 travels eastward along the north side of Interstate 80/US Route 30, which it parallels. At just under 2 miles, Highway 377 ends, as state maintenance ends, however the roadway will continue north, as 9 Mile Road, providing access to and from the Jim Bridger Power Station. [2][3]The Jim Bridger Power Station is a 2,110 megawatt facility owned by PacifiCorp is one of the largest coal-fired electric power generation facilities in the western United States.[4]


Highway 377 is the former alignment of US 30 (Lincoln Highway) through this area and parallels Interstate 80 which carries the present day routing of US 30.[3]

Major intersections[edit]

The entire route is in Sweetwater County.

Location Mile km Destinations Notes
Point of Rocks 0.00 0.00 I‑80 / US 30 Western terminus of WYO 377
Exit 130 (I-80/US 30)
near Jim Bridger Power Plant 1.96 3.15 9 Mile Road Eastern terminus of WYO 377
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


External links[edit]