Interstate 25 in Wyoming

Interstate 25 Main route of the Interstate Highway System
Maintained by WYDOT
Length:	300.99 mi[1] (484.40 km)
South end:	I-25 / US 87 at Colorado state line
Major junctions:	I-80 in Cheyenne US 20 / US 26 in Casper
North end:	I-90 / US 87 near Buffalo
State highways in Wyoming < WYO 24 WYO 26 >

In the U.S. state of Wyoming, Interstate 25 follows the mostly north–south corridor through Cheyenne and Casper. It replaced U.S. Highway 87 for through traffic. (Between Glendo, Wyoming and Casper, Wyoming it runs east–west as well.)

Exit list

County	Location	Mile[1]	#	Destinations	Notes
Laramie		2.66	2	Terry Ranch Road (WYO 223)
		7.85	7	I-25 Bus. north (College Drive, US 87 Bus. north, WYO 212)
		8.84	8	I-80 to US 85  – Omaha, Laramie	Signed as exits 8B (west) and 8D (east)
	Cheyenne	9.14	9	US 30 (West Lincolnway)
		10.59	10D	WYO 210 (Happy Jack Road) / Missile Drive
		10.59	10B	Warren AFB Gate 2
		11.24	11	Pershing Boulevard, Randall Avenue – Warren Air Force Base Gate 1
		12.70	12	I-25 Bus. south / US 85 south (Central Avenue, US 87 Bus. south, WYO 224) – Cheyenne, Cheyenne Regional Airport	South end of US 85 overlap
		13.83	13	Vandehei Avenue
		16.23	16	WYO 211 (Horse Creek Road)
		17.24	17	US 85 north – Torrington	North end of US 85 overlap; southbound exit is via a U-turn at exit 16
		21.32	21	Ridley Road, Little Bear Road
		25.45	25	(no name)
		29.51	29	Whitaker Road
		34.44	34	Nimmo Road
		39.24	39	Little Bear Community
Platte		47.25	47	Bear Creek Road
	Chugwater	54.59	54	I-25 Bus. north (WYO 211, WYO 313) – Chugwater
		57.65	57	I-25 Bus. south (Ty Basin Road, WYO 321) – Chugwater
		65.25	65	Slater Road (WYO 314)
		66.20	66	Hunton Road
		68.45	68	Antelope Road
		70.62	70	Bordeaux Road
		73.03	73	WYO 34 west – Laramie
	Wheatland	78.93	78	I-25 Bus. north / US 87 Bus. north – Wheatland
		80.85	80	I-25 Bus. south / US 87 Bus. south – Wheatland
		84.74	84	Laramie River Road
		87.51	87	Johnson Road
		92.37	92	US 26 east – Guernsey, Torrington	South end of US 26 overlap
		94.83	94	El Rancho Road
		100.13	100	Cassa Road (WYO 319)
		104.04	104	Middle Bear
	Glendo	111.68	111	Glendo (WYO 319)
Converse		126.47	126	US 18 east / US 20 east – Lusk	South end of US 20 overlap
		135.47	135	I-25 Bus. north – Douglas
	Douglas	140.10	140	I-25 Bus. south to WYO 59 (WYO 94) – Gillette, Douglas
		146.00	146	La Prele Road (WYO 96)
		150.44	150	Inez Road
		151.17	151	Natural Bridge
		154.24	154	Barber Road
		156.18	156	Bixby Road
		160.87	160	I-25 Bus. north / US 20 west / US 26 west / US 87 north – East Glenrock	North end of US 20 / US 26 / US 87 overlap
		165.91	165	I-25 Bus. south (WYO 95) – Glenrock, Rolling Hills
Natrona		182.53	182	Hat Six Road (WYO 253) – Brooks
	Casper	185.35	185	Casper, Evansville (WYO 258)
		186.79	186	I-25 Bus. / US 20 Bus. / US 26 Bus. / US 87 Bus. (North Beverly Street) / Bryan Stock Trail	South end of US 20 / US 26 / US 87 overlap
		187.53	187	McKinley Street
		188.19	188A	I-25 Bus. south / US 87 Bus. south (Center Street, WYO 255)
		188.60	188B	WYO 220 west (Poplar Street)
		189.51	189	US 20 west / US 26 west – Shoshoni	North end of US 20 / US 26 overlap
		191.64	191	Wardwell Road (WYO 254)
		197.52	197	Ormsby Road
		210.41	210	WYO 259 (Horse Ranch Creek Road)
		216.61	216	Ranch Road
		223.78	223	(no name)
		227.99	227	WYO 387 north – Midwest, Edgerton
Johnson		235.38	235	Tisdale Mountain Road
		246.56	246	Powder River Road
		249.69	249	TTT Road (WYO 196)
		254.25	254	Kaycee (WYO 191)
		265.48	265	Reno Road
		280.18	280	Middle Fork Road
		291.08	291	Trabing Road
		298.02	298	I-25 Bus. north / US 87 Bus. north – Buffalo
		299.32	299	US 16 (I-90 Bus.) – Buffalo
		300.56	300	I-90 east – Gillette	Northbound exit and southbound entrance
		300.56		I-90 west / US 87 north – Sheridan	Northbound exit and southbound entrance

References

Interstate 25
Previous state: Colorado	Wyoming	Next state: Terminus

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