Interstate 80 in Wyoming

This article is about the section of Interstate 80 in Wyoming. For the entire route, see Interstate 80.

Interstate 80
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Route information
Maintained by WYDOT
Length:	402.780 mi (648.212 km)
Major junctions
West end:	I-80 / US-189 at the Utah state line near Evanston
	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 in Cheyenne US 85 in Cheyenne
East end:	I-80 at the Nebraska state line in Pine Bluffs
Location
Counties:	Uinta, Sweetwater, Carbon, Albany, Laramie
Highway system
Interstate Highway System Main Auxiliary Suffixed Business State highways in Wyoming ← WYO 78 US 85 →

Interstate 80 (I-80) is a part of the Interstate Highway System that runs from San Francisco to Teaneck, New Jersey. In Wyoming, the Interstate Highway runs 402.780 miles (648.212 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 U.S. Route 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.

Route description

Evanston to Rock Springs

I-80 enters Uinta County concurrent with US 189 from Summit County, Utah, west of Evanston, the county seat of Uinta County. The Interstate parallels the Union Pacific Railroad's Evanston Subdivision rail line to Yellow Creek, east of which the railroad parallels the creek northeast and the highway heads east into the city of Evanston. I-80 Bus. and US 189 Bus. split northeast onto Harrison Drive. I-80 has an interchange with WYO 150 (Front Street) just south of downtown Evanston and cross over the railroad line and the Bear River shortly before the business routes, which use Bear River Drive) rejoin the Interstate on the eastern edge of the city. I-80 and US 189 continue east through interchanges with Painter Road and Divide Road before the U.S. Highway splits northeast toward Kemmerer.

I-80 continues east through interchanges with Coal Road and Bar Hat Road and crosses over the Union Pacific rail line just west of the Leroy Road interchange. The highway has more minor junctions with French Road, Bigelow Road, and Union Road before I-80 Bus. splits southeast toward Fort Bridger. I-80 parallels Blacks Fork of the Green River through interchanges with WYO 412 and WYO 414 north of Mountain View and WYO 413 north of Lyman before crossing over the river. The Interstate crosses over Smiths Fork, a tributary of Blacks Fork, before I-80 Bus. rejoins the mainline. I-80 has a junction with Church Butte Road before entering Sweetwater County. The highway meets the western end of WYO 374 south of Granger and has a trumpet interchange with US 30, which joins the Interstate in the first of several concurrencies east to Nebraska. A second segment of WYO 374 begins at the first interchange east of US 30 that serves Little America.

Green River Tunnel in Green River, Wyoming, one of three sets of tunnels along the interstate from California to New Jersey

I-80 and US 30 parallel WYO 374 through a junction with Westvaco Road, across Blacks Fork again, and across the railroad before an interchange with WYO 374 and WYO 372. The Interstate has an interchange with Covered Wagon Road just west of its crossing of the Green River at James Town. I-80 and US 30 parallel the river and WYO 374 to the city of Green River, the county seat of Sweetwater County. The highway has trumpet interchanges with I-80 Bus. and US 30 Bus. on either side of the city; between the interchanges, the Interstate passes through the dual Green River Tunnel. The business route connects I-80 with WYO 530 (Uinta Drive). East of town, the highways follow Bitter Creek along the southern flank of White Mountain. US 191 joins I-80 and US 30 at Purple Sage; the three highways continue into the city of Rock Springs. I-80 Bus. and US 30 Bus. split east onto Dewar Drive. The mainline Interstate has partial cloverleaf interchanges with College Drive, which serves Western Wyoming Community College, and Elk Street, which US 191 joins to head north. The business routes, here named Pilot Butte Avenue, rejoin I-80 and US 30 on the east side of the city.

Rock Springs to Laramie

I-80 and US 30 continue east from Rock Springs parallel to the Union Pacific's Rawlins Subdivision and Bitter Creek. The Interstate has interchanges with WYO 370, which leads south to Rock Springs–Sweetwater County Airport; and WYO 371, which heads north toward Superior; and WYO 372 at Point of Rocks. At Point of Rocks, I-80 and US 30 veer away from the railroad and Bitter Creek and cross the Red Desert. Within the desert, the Interstate has interchanges with a string of minor roads: Black Butte Road, Red Hill Road, Bitter Creek Road, Patrick Draw Road, Table Rock Road, Bar X Road, BLM Road, GL Road, Tipton Road, an exit simply labelled Red Desert, and Rasmussen Road. The only place of significance within this stretch is Table Rock, where the highway rejoins the railroad and enters the Great Divide Basin, an endorheic basin between two branches of the Continental Divide. I-80 and US 30 pass by the only town in the basin, Wamsutter, which is accessed by an interchange with Kelly Street. The freeway has a junction with Continental Divide Road and an interchange with WYO 789, which joins the Interstate eastbound.

I-80, US 30, and WYO 789 intersect Riner Road before entering Carbon County. The freeway continues through minor interchanges with Daley Road, Knobs Road, Hadsell Road, and Johnson Road; the freeway leaves the Great Divide Basin and enters the Mississippi River watershed west of Hadsell Road. WYO 789, I-80 Bus., and US 30 Bus. split from I-80 and US 30 at the west end of the city of Rawlins, the county seat of Carbon County. The Interstate crosses over the Rawlins Subdivison rail line and has an interchange with WYO 71 (Higley Boulevard). I-80 and US 30 cross back to the north side of the railroad and have a trumpet interchange with the two business routes and US 287, which joins the freeway heading east from Rawlins; WYO 76 splits east from the eastbound loop of the interchange. The Interstate has a trumpet interchange with Lincoln Avenue at the west end of Sinclair, then crosses over the railroad and WYO 76. I-80 and the two U.S. Highways meet the eastern end of WYO 76 east of Sinclair. The three highways cross the North Platte River just east of the Fort Steele interchange.

US 30 and US 287 diverge from I-80 southwest of Hanna; WYO 130 heads south from the same interchange. I-80 continue east along the northern edge of the Medicine Bow Mountains and has junctions with Peterson Road and WYO 72, then crosses the Medicine Bow River. The Interstate continues through interchanges with Elk Mountain Medicine Bow Road, Wagonhound Road, and WYO 13 at Arlington, where the freeway crosses Rock Creek. I-80 intersects Cooper Cove Road before entering Albany County. The Interstate has interchanges with Quealy Dome Road and WYO 12 (Herrick Lane) around its crossing of the Little Laramie River. I-80 passes along the southern edge of Bamforth National Wildlife Refuge before entering Laramie, the county seat of Albany County. The freeway enters the city from the north, and I-80 Bus. splits east along Curtis Street. I-80 has interchanges with WYO 130 and WYO 230 (Snowy Range Road) and with US 287 (Third Street) and crossings of the Laramie River and the Union Pacific Railroad's Laramie Subdivision as it curves east. The Interstate receives its business route and US 30 at a trumpet interchange on the eastern edge of the city.

Laramie to Pine Bluffs

East of Laramie, I-80 and US 30 head southeast and cross the Laramie Mountains. The two highways reach their national high point at Sherman Summit, where they have an interchange with WYO 210 (Happy Jack Road). I-80 and US 30 have interchanges with Vedauwoo Road and Buford Road, the latter at the settlement of Buford just before the freeway enters Laramie County. The Interstate and U.S. highways rejoin the railroad and pass through minor junctions with Remount Road, Harriman Road, and Warren Road. I-80 and US 30 meet the western end of WYO 225 (Otto Road), which they parallel east to Cheyenne. The two highways have an interchange with WYO 222 (Roundtop Road) just west of a three-ramp partial cloverleaf interchange with the eastern end of WYO 225 (Otto Road) and the western end of I-80 Bus. (Lincolnway), onto which US 30 exits. The missing movement from the surface highway to eastbound I-80 is made via the business route's nearby interchange with I-25 and US 87.

I-80 continues east across the Union Pacific Railroad to a full cloverleaf interchange with I-25 and US 87, where the highway enters the city of Cheyenne, the county seat and state capital. The Interstate crosses over a BNSF Railway line and has a diamond interchange with US 85 and the southern end of I-180, a non-freeway spur into downtown Cheyenne. East of I-180, I-80 receives the eastern end of its business route at its junction with WYO 212 (College Drive). East of its interchange with Campstool Road, the freeway leaves the city of Cheyenne and collects the eastern end of US 30 (Archer Boulevard). I-80 and US 30 have interchanges serves Hillsdale and Egbert around a junction with WYO 213 and WYO 214, which serve Burns and Carpenter, respectively. I-80 and US 30 reapproach the Union Pacific Railroad's Sidney Subdivision east of Burns and parallel it to Pine Bluffs, the easternmost town in Wyoming. There, US 30 splits north and immediately meets the southern terminus of WYO 215. At the eastern town limit of Pine Bluffs, I-80 enters Kimball County, Nebraska.

Exit list

County	Location	mi	km	Exit	Destinations	Notes
Uinta	​	0.000	0.000	—	I-80 west / US-189 south – Salt Lake City	Western terminus of I-80 in Wyoming; Utah state line
	Evanston	3.453	5.557	3	I-80 Bus. east / US 189 Bus. north to WYO 89 (Harrison Drive)
		5.263	8.470	5	WYO 89 north / WYO 150 south (Front Street)
		6.257	10.070	6	I-80 Bus. west / US 189 Bus. south to WYO 89 (Bear River Drive)
	​	10.683	17.193	10	Painter Road
	​	13.862	22.309	13	Divide Road
	​	18.293	29.440	18	US 189 north – Kemmerer	East end of concurrency with US 189
	​	21.751	35.005	21	Coal Road
	​	23.120	37.208	23	Bar Hat Road
	​	23.906	38.473	24	Leroy Road
	​	28.713	46.209	28	French Road
	​	30.398	48.921	30	Bigelow Road
	​	33.182	53.401	33	Union Road
	​	34.741	55.910	34	I-80 Bus. east – Fort Bridger
	​	39.896	64.206	39	WYO 412 north / WYO 414 south – Carter, Mountain View
	​	41.987	67.572	41	WYO 413 south – Lyman
	​	48.303	77.736	48	I-80 Bus. west – Lyman, Fort Bridger
	​	53.306	85.788	53	Church Butte Road
Sweetwater	​	61.591	99.121	61	WYO 374 east (Cedar Mountain Road) – Granger
	Little America	66.120	106.410	66	US 30 west – Kemmerer, Pocatello	West end of concurrency with US 30
		68.972	111.000	68	WYO 374 east – Little America
	​	72.296	116.349	72	Westvaco Road
	James Town	83.007	133.587	83	WYO 374 / WYO 372 (La Barge Road)
		85.697	137.916	85	Covered Wagon Road
	Green River	89.445	143.948	89	I-80 Bus. east / US 30 Bus. east / WYO 374 to WYO 530 – Green River
		91.532	147.306	91	I-80 Bus. west / US 30 Bus. west to WYO 530 – Green River
	Purple Sage	99.138	159.547	99	US 191 south (East Flaming Gorge Road)	West end of concurrency with US 191
	Rock Springs	102.358	164.729	102	I-80 Bus. (Dewar Drive) / US 30 Bus. east
		103.819	167.080	103	College Drive
		104.825	168.699	104	US 191 north (Elk Street)	East end of concurrency with US 191
		107.056	172.290	107	I-80 Bus. / US 30 Bus. (Pilot Butte Avenue) to WYO 430
	​	111.161	178.896	111	WYO 370 south (Airport Road) / Baxter Road – Rock Springs–Sweetwater County Airport
	​	122.272	196.778	122	WYO 371 north – Superior
	Point of Rocks	130.840	210.567	130	WYO 377 east – Point of Rocks
	​	136.958	220.413	136	Black Butte Road
	​	139.509	224.518	139	Red Hill Road
	​	142.170	228.800	142	Bitter Creek Road
	​	146.848	236.329	146	Patrick Draw Road
	Table Rock	150.807	242.700	150	Table Rock Road
		152.455	245.353	152	Bar X Road
		154.055	247.927	154	BLM Road
		156.025	251.098	156	GL Road
		158.545	255.153	158	Tipton Road
	​	165.582	266.478	165	Red Desert
	​	170.676	274.676	170	Rasmussen Road
	Wamsutter	173.413	279.081	173	Kelly Street – Wamsutter
	​	184.288	296.583	184	Continental Divide Road
	​	187.204	301.276	187	WYO 789 south – Creston Junction, Baggs	West end of concurrency with WYO 789
	​	196.157	315.684	196	Riner Road
Carbon	​	201.164	323.742	201	Daley Road
	​	204.175	328.588	204	Knobs Road
	​	206.182	331.818	206	Hadsell Road
	​	209.459	337.092	209	Johnson Road
	Rawlins	211.780	340.827	211	I-80 Bus. / US 30 Bus. east / WYO 789 north to US 287 – Rawlins	East end of concurrency with WYO 789
		214.111	344.578	214	WYO 71 south (Higley Boulevard)
		215.570	346.926	215	I-80 Bus. / US 30 Bus. west / US 287 north to WYO 789 – Rawlins	West end of concurrency with US 287
	Sinclair	219.594	353.402	219	Lincoln Avenue – Sinclair
		221.926	357.155	221	WYO 76 west – Sinclair
	​	228.341	367.479	228	Fort Steele
	​	235.280	378.646	235	US 30 east / US 287 south / WYO 130 east – Walcott, Saratoga	East end of concurrencies with US 30 and US 287
	​	238.150	383.265	238	Peterson Road
	​	255.602	411.352	255	WYO 72 – Hanna, Elk Mountain
	​	260.232	418.803	260	County Road 402 (Elk Mountain Medicine Bow Road)
	​	267.186	429.994	267	Wagonhound Road
	Arlington	272.056	437.832	272	WYO 13 north – Arlington
	​	279.859	450.389	279	Cooper Cove Road
Albany	​	290.438	467.415	290	Quealy Dome Road
	​	297.663	479.042	297	WYO 12 (Herrick Lane)
	Laramie	310.452	499.624	310	I-80 Bus. east (Curtis Street)
		311.756	501.723	311	WYO 130 / WYO 230 (Snowy Range Road)
		313.191	504.032	313	US 287 (Third Street) – Fort Collins
		316.702	509.682	316	I-80 Bus. / US 30 west (Grand Avenue)	West end of concurrency with US 30
	Sherman Summit	323.049	519.897	323	WYO 210 east (Happy Jack Road)	Highest point on I-80
	​	329.316	529.983	329	Vedauwoo Road
	Buford	335.106	539.301	335	Buford Road – Buford
Laramie	​	339.317	546.078	339	Remount Road
	​	342.560	551.297	342	Harriman Road
	​	345.501	556.030	345	Warren Road
	​	348.363	560.636	348	WYO 225 east (Otto Road)
	​	357.680	575.630	357	WYO 222 (Roundtop Road)
	Cheyenne	358.076	576.267	358	I-80 Bus. / US 30 east (Lincolnway) / WYO 225 west (Otto Road)	No eastbound entrance; east end of concurrency with US 30
		359.599	578.718	359	I-25 / US 87 – Casper, Fort Collins	Split into exits 359A (south) and 359C (north); I-25 exits 8B-D
		362.037	582.642	362	I-180 north / US 85 (Central Avenue) – Greeley
		364.000	585.801	364	I-80 Bus. west (College Drive) / WYO 212 / to Lincolnway
		367.424	591.312	367	Campstool Road
		370.394	596.091	370	US 30 west (Archer Boulevard)	West end of concurrency with US 30
	​	377.353	607.291	377	Hillsdale
	​	386.389	621.833	386	WYO 213 north / WYO 214 south – Burns, Carpenter
	​	391.385	629.873	391	Egbert
	Pine Bluffs	401.456	646.081	401	US 30 east to WYO 215 – Pine Bluffs	East end of concurrency with US 30
		402.780	648.212	—	I-80 east – Omaha	Eastern terminus of I-80 in Wyoming; Nebraska state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

Business routes

I-80 has seven Interstate business loops in Wyoming:

• Interstate 80 Business (Evanston, Wyoming) runs 3.150 miles (5.069 km) through Evanston in western Uinta County. The business route is coexistent with US 189 Bus. for its entire length. I-80 Bus. begins at I-80 Exit 3; the ramp from westbound I-80 to the business route lies east of the other three ramps of the diamond interchange. The business routes heads east along Harrison Drive, which veers northeast onto 11th Street at the western edge of the city street grid. In the downtown area, I-80 Bus. turns southeast onto Front Street. At the intersection of Front Street and Sixth Street, which is the northern terminus of WYO 150 and the southern terminus of WYO 89, the business route turns north and crosses the Union Pacific Railroad's Evanston Subdivision rail line. I-80 Bus. crosses the Bear River, then turns east onto Bear River Drive while WYO 89 continues north. The business route follows Bear River Drive east until it rejoins I-80 at Exit 6.
• Interstate 80 Business (Fort Bridger–Lyman, Wyoming) has a length of 15.630 miles (25.154 km) through Fort Bridger and Lyman in eastern Uinta County. The business route begins at I-80 Exit 34. The highway heads east across Blacks Fork of the Green River and passes through the unincorporated town of Fort Bridger, which contains the namesake historic fort. I-80 Bus. intersects WYO 414 in the hamlet of Urie then curves north onto the town of Lyman. The business route follows Main Street, then intersects the southern end of WYO 413 within a sharp curve east onto Clark Street. I-80 Bus. leaves the town and curves northeast, then crosses Smiths Fork, a tributary of Blacks Fork, before rejoining I-80 at Exit 48.
• Interstate 80 Business (Green River, Wyoming) spans 2.510 miles (4.039 km) through Green River in western Sweetwater County. The business route is coexistent with US 30 Bus. for its entire length. I-80 Bus. begins at Exit 89, a trumpet interchange that connects with the eastern terminus of WYO 374. The highway heads southeast parallel to the Green River along Flaming Gorge Way through the center of Green River. Near the east end of the city, I-80 Bus. parallels a Union Pacific Railroad rail yard that serves as the western end of the railroad's Rawlins Subdivision and the eastern end of the Evanston Subdivision. Next to the railyard, the business route has an intersection with WYO 530 (Uinta Drive), which heads north, then curves back south and bridges the business route and the rail yard on its way to the portion of the city south of the Green River. Immediately east of WYO 530, I-80 Bus. rejoins the mainline Interstate at Exit 91, another trumpet interchange.
• Interstate 80 Business (Rock Springs, Wyoming) runs 4.120 miles (6.630 km) through Rock Springs in central Sweetwater County. The business route is coexistent with US 30 Bus. for its entire length. I-80 Bus. begins at Exit 102 and heads east along Dewar Drive. The highway curves northeast and passes to the north of downtown Rock Springs. Downtown is served by WYO 430, which I-80 Bus. intersects just east of a rail line that branches north from the Union Pacific Railroad's Rawlins Subdivision. The business route follows Center Street west of WYO 430 and Bridger Avenue to the east, then follows Pilot Butte Avenue through the eastern part of the city to its eastern junction with I-80 at Exit 107.
• Interstate 80 Business (Rawlins, Wyoming) has a length of 3.770 miles (6.067 km) through Rawlins in western Carbon County. The business route is coexistent with US 30 Bus. for its entire length. I-80 Bus. begins at I-80 Exit 211 on the western edge of the city and heads east concurrently with WYO 789 along Spruce Street. In downtown Rawlins, at the intersection of Spruce Street and Third Street, the business route turns south onto Third Street, WY 789 turns north onto Third Street, and the business route begins to run concurrently with US 287. Three blocks to the south, I-80 Bus. and US 287 turn east onto Cedar Street and parallel the Union Pacific Railroad along its Rawlins rail yard, which serves as the boundary between the Rawlins Subdivision to the west and the Laramie Subdivision to the east. The highway meets the southern end of US 287 Bypass (Higley Boulevard) shortly before reaching its eastern end at I-80 Exit 215. Within the trumpet interchange on the south side of I-80, the interchange ramps meet the western end of WYO 76, which heads east toward Sinclair.
• Interstate 80 Business (Laramie, Wyoming) spans 6.357 miles (10.231 km) through Laramie in southern Albany County. I-80 Bus. begins at I-80 Exit 310 and heads east along Curtis Street, which crosses over the Laramie River and the Union Pacific Railroad's Laramie Subdivision. The business route turns south onto Third Street, along which the highway runs concurrently with US 30 and US 287. In downtown Laramie, I-80 Bus. and US 30 turn east onto Grand Avenue, which runs along the southern edge of the University of Wyoming campus. The highway curves southeast and leaves the city of Laramie just north of its end at the trumpet interchange of I-80 Exit 316.
• Interstate 80 Business (Cheyenne, Wyoming) runs 6.935 miles (11.161 km) through Cheyenne in central Laramie County. I-80 Bus. begins at I-80 Exit 358, a three-ramp partial cloverleaf interchange next to the Union Pacific Railroad's Laramie Subdivision rail line at the western city limits of Cheyenne. WYO 225 (Otto Road) heads southwest from the interchange and I-80 Bus. and US 30 head east along Lincolnway. The interchange has no ramp to eastbound I-80; that movement is made via the business route's four-ramp partial cloverleaf interchange with I-25 and US 87 a short distance to the east. I-80 Bus. and US 30 intersect Missile Drive, cross Crow Creek, and have an at-grade crossing of a BNSF Railway line before entering downtown Cheyenne. In the center of downtown, north of the Cheyenne rail yard and the Cheyenne Depot Museum, the highways intersect US 85, I-25 Bus., and the northern end of I-180. Those north–south highways use Central Avenue southbound and Warren Avenue northbound. I-80 Bus. and US 30 leave downtown Cheyenne and the vicinity of the railroad as they pass Holiday Park. On the east side of Cheyenne at Lincolnway's intersection with WYO 212 (College Drive), US 30 continues east and I-80 Bus. turns south onto WYO 212. The business route and state highway cross over Union Pacific's Sidney Subdivision on the way to the eastern terminus of I-80 Bus. at I-80 Exit 364.

External links

Interstate 80
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