Business Loop I-80 - Green River


Business Loop I-80 serves Green River via Flaming Gorge Way, from Exits 89 to 91 along Interstate 80. With the exception of the western interchange with I-80, this business route follows the historic route of U.S. 30 and the Lincoln Highway.
Home to over 12,000, the city of Green River was incorporated in 1868 as part of Dakota Territory, and again in 1891 as part of the new state of Wyoming. The city is a hub for the trona mining industry, which is located west of Green River. Additionally, the railroad, tourism to the Flaming Gorge, and Interstate traffic augment the economy of this vibrant region. There are no coal mines near Green River; those are primary located near Rock Springs. Green River is also the seat of Sweetwater County, with the courthouse located along Business Loop I-80 in Downtown. The annual Flaming Gorge Days is a concert festival held every June.
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
![]() ![]() |
89.45 | Junction ![]() ![]() |
52 | 0.00 | 0.00 |
89.45 | Begin ![]() ![]() |
52 | 0.00 | 0.00 | |
89.60 | West City Limits Green River; End Divided Section | 52 | 0.15 | 0.15 | |
89.69 | Junction ![]() |
52 | 0.09 | 0.24 | |
89.76 | 89.76BK=89.75AH | 52 | 0.07 | 0.31 | |
91.10 | Union Pacific Railroad Separation | 52 | 1.35 | 1.66 | |
91.22 | Junction ![]() |
52 | 0.12 | 1.78 | |
91.65 | Begin Divided Section | 52 | 0.43 | 2.21 | |
91.96 | Junction ![]() ![]() |
52 | 0.31 | 2.52 | |
91.96 | End ![]() ![]() |
52 | 0.00 | 2.52 |


Confirming markers for Business Loop I-80 & U.S. 30 Business include trailblazers for Wyoming 530. Wyoming 530 intersects the business loop on the east end of Downtown Green River.
09/07/05
Reassurance shield assembly for Business Loop I-80 & U.S. 30 Business posted along Flaming Gorge Way ahead of Downtown Green River.
09/07/05
Although anchored by the county court house and ancillary government buildings for Sweetwater County, Downtown Green River is fairly small.
09/07/05
Eastbound Business Loop I-80 and U.S. 30 Business reach the intersection with Wyoming 530 (Uinta Drive). Wyoming 530 southbound initially leads north as the state highway takes an adjacent switchback to span the railroad across a tall viaduct. The business route ends a half mile east of here.
09/07/05


Business Loop I-80 & U.S. 30 Business west next approach Wyoming 374, followed by the trumpet interchange with I-80 & U.S. 30.
09/07/05
A frontage road, Wyoming 374 follows the old alignment of U.S. 30 west to Jamestown. It connects with Interstate 80 again at the interchange with Wyoming 372 (LaBarge Road). Further west, Wyoming 374 proceeds toward an array of trona mines and Little America.
09/07/05
The Green River Palisades rise along the south side of the exchange joining Business Loop I-80 with I-80 & U.S. 30.
09/07/05
Photo Credits:
- AARoads: 09/07/05
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Page Updated Thursday January 18, 2018.