Interstate 90 in Wyoming

Interstate 90
Route information
Maintained by WYDOT
Length:	208.80 mi[1] (336.03 km)
Major junctions
West end:	I‑90 at Montana state line
	I-25 near Buffalo
East end:	I-90 at South Dakota state line
Location
Counties:	Sheridan, Johnson, Campbell, Crook
Highway system
Interstate Highway System Main Auxiliary Suffixed Business State highways in Wyoming ← US 89 WYO 90 →

In the U.S. state of Wyoming, Interstate 90 traverses the northeastern corner of the state, passing through the cities and communities of Sheridan, Buffalo, and Gillette.^[2]

Route description

Interstate 90 enters Wyoming from Montana and heads south concurrent with US 87 through hilly grasslands. It curves to the southeast and meets an interchange that serves the small community of Parkman. Continuing southeast, the highway intersects US 14 at a diamond interchange. US 14 joins I-90 and US 87 and the three routes curve east. After the freeway bends back to the southeast, it intersects the eastern end of WYO 345, then crosses the BNSF Railway^[3] (formerly the Chicago, Burlington and Quincy Railroad) and the Tongue River. The highway serves as the western terminus of WYO 339 and then passes over WYO 338 without an intersection just before it crosses Goose Creek. Just south of Goose Creek, US 14 and US 87 split off to the south of I-90 via a trumpet interchange. This road is also signed as a business loop of I-90 (BL 90).^[4]

View of south Sheridan from I-90

The freeway turns due south and skirts around the eastern edge of Sheridan. It intersects WYO 336, then crosses over the BNSF Railway again^[3] before intersecting US 14 farther south. South of Sheridan, I-90 continues to travel south roughly parallel to US 87. The highway intersects WYO 342 and Prairie Dog Creek Road at diamond interchanges before US 87 merges back into and becomes concurrent with I-90. The highway runs southwest of Lake Desmet. Here it meets Lake Ridge Road, which leads to the lake.^[4]

Southeast of Lake Desmet, I-90/US 87 comes to a diamond interchange with Rock Creek Road. It then intersects the business loops of US 87 and I-25 at an incomplete diamond interchange; only traffic heading southbound can exit, and traffic from the business loops can only access I-90 northbound. Just southeast of this interchange, I-90 meets the northern terminus of I-25. US 87 follows I-25 southbound toward Buffalo, while I-90 bends to the southeast and intersects US 16 at a diamond interchange.^[4]

Southeast of Buffalo, I-90 continues in a general southeasterly direction through hilly grasslands. The highway intersects several minor farm roads, then curves to the northeast toward Gillette. Just west of the city, the freeway turns due east. Within Gillette, I-90 comes to a diamond interchange with WYO 50 and its own business loop, then dips to the southeast and meets another diamond interchange, this one with WYO 59. I-90 then has one last exit in Gillette: a partial cloverleaf interchange with US 14, US 16, and WYO 51. The first two of those routes become concurrent with I-90 and follow it east.^[4]

The freeway crosses the BNSF Railway^[3] and then turns to the east. It meets a diamond interchange with Garner Lake Road, then leaves Gillette and intersects American Road before crossing the BNSF Railway again.^[3] The highway travels east, parallel to WYO 51 and then meets Adon Road, then curves to the southeast toward Moorcroft. I-90 has two exits in Moorcroft; at the first exit, US 14 and US 16 leave I-90, and I-90's business loop begins. The highway passes over US 14 with no access and then meets its second exit in the city: the eastern terminus of its business loop. East of this exit, I-90 leaves the city.^[4]

East of Moorcroft, I-90 intersects several more minor rural roads while it bends to the northeast toward Sundance. As it nears Sundance, it shares a diamond interchange with US 14 and BL 90. The route then curves to the east and enters the city, intersecting WYO 585 at a diamond interchange. I-90 then meets US 14 and the eastern terminus of BL 90; the former becomes concurrent with I-90, and the two routes head northeast, leaving Sundance. Northeast of Sundance, I-90/US 14 parallels the former alignment of the latter. The highway intersects Sundance-Moskee Road, then bends north and meets WYO 111. I-90/US 14 then has one last exit, with Sand Creek Road, before crossing into South Dakota.^[4]

Exit list

County	Location	mi[5]	km	Exit	Destinations	Notes
Sheridan		0.00	0.00		I‑90 west / US 87 north	Continuation into Montana
		1.79	2.88	1	Parkman
	Ranchester	9.88	15.90	9	US 14 west – Greybull, Lovell, Ranchester, Dayton, Yellowstone National Park, Grand Teton National Park	West end of US 14 overlap
		14.62	23.53	14	WYO 345 – Acme
		16.34	26.30	16	WYO 339 – Decker
	Sheridan	20.92	33.67	20	I-90 Bus. east (Main Street)
		23.15	37.26	23	WYO 336 (Fifth Street)
		25.40	40.88	25	I-90 Bus. west / US 14 east – Sheridan, Big Horn, Ucross	East end of US 14 overlap
		32.98	53.08	33	Meade Creek Road – Big Horn
		37.16	59.80	37	Prairie Dog Creek Road
Johnson		44.69	71.92	44	Piney Creek Road
		47.71	76.78	47	Shell Creek Road
		51.36	82.66	51	Lake de Smet
		53.83	86.63	53	Rock Creek Road
	Buffalo	56.36	90.70	56A	I-25 Bus. south / I-90 Bus. east – Buffalo	Eastbound exit and westbound entrance
		56.85	91.49	56B	I-25 south / US 87 south – Casper	East end of US 87 overlap; I-25 to 90 east exit 300
		58.65	94.39	58	I-90 Bus. west / US 16 – Buffalo, Ucross
		65.98	106.18	65	Red Hills Road, Tipperary Road
		69.64	112.07	69	Dry Creek Road
		73.01	117.50	73	Crazy Woman Creek Road
		77.91	125.38	77	Schoonover Road
		82.83	133.30	82	Indian Creek Road
		88.67	142.70	88	Powder River Road
		91.49	147.24	91	Dead Horse Creek Road
Campbell		102.52	164.99	102	Barber Creek Road
		106.14	170.82	106	Kingsbury Road
		113.97	183.42	113	Wild Horse Creek Road
		116.24	187.07	116	Force Road
	Gillette	124.26	199.98	124	I-90 Bus. east / WYO 50 to US 14 west / US 16 west – Gillette
		126.39	203.40	126	WYO 59 – Douglas
		128.09	206.14	128	I-90 Bus. west / US 14 west / US 16 west – Gillette	West end of US 14/US 16 overlap
		129.10	207.77	129	Garner Lake Road
	Wyodak	132.99	214.03	132	Wyodak Road
		141.24	227.30	141	Rozet
Crook	Moorcroft	153.41	246.89	153	US 14 east / US 16 east – Moorcroft, Newcastle	East end of US 14/US 16 overlap
		154.77	249.08	154	To US 14 / US 16 – Moorcroft
		160.66	258.56	160	Wind Creek Road
		165.68	266.64	165	Pine Ridge Road – Pine Haven
		172.09	276.95	172	Inyan Kara Road
		178.92	287.94	178	Coal Divide Road
		185.73	298.90	185	I-90 Bus. east / US 14 to WYO 116 – Sundance
	Sundance	187.53	301.80	187	WYO 585 – Sundance, Newcastle
		189.00	304.17	189	I-90 Bus. west / US 14 west – Sundance	West end of US 14 overlap
		191.92	308.87	191	Moskee Road
		199.31	320.76	199	WYO 111 – Aladdin
	Beulah	205.90	331.36	205	Beulah
		208.80	336.03		I-90 east / US 14 east	Continuation into South Dakota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

Business routes

Business routes are present in Sheridan (also carries US 14 Business and US 87 Business), Buffalo, Gillette, and Sundance (also part of US 14).

References

1. "Route Log- Main Routes of the Eisenhower National System Of Interstate and Defense Highways - Table 1". Federal Highway Administration. October 31, 2002. Retrieved 31 October 2010.
2. Wyoming Department of Transportation Travel Information Service - Web Cameras
3. (PDF) (PDF). Wyoming Department of Transportation. October 2004 http://www.dot.state.wy.us/files/live/sites/wydot/files/shared/Planning/Wyoming%20State%20Rail%20Plan.pdf. Retrieved January 30, 2014. Missing or empty |title= (help)
4. Google (31 October 2010). "Interstate 90" (Map). Google Maps. Google. Retrieved 31 October 2010.
5. "Reference Marker Book" (PDF). Wyoming Department of Transportation. November 2004. Retrieved 31 October 2010.

External links

Route map: Bing / Google