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Interstate 90 in Montana: Wikis

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I-90 (big).svg
Interstate 90
Main route of the Interstate Highway System
Maintained by Montana Department of Transportation
Length: 551.68 mi (887.84 km)
West end: I-90 at Idaho state line
Major
junctions:
I-15 in Butte
I-115 in Butte
I-94 in Billings
East end: I-90 at Wyoming state line
Montana Highways
< MT 89 US 91 >

In the U.S. state of Montana, Interstate 90 traverses much of the east–west length at nearly 552 miles (888 km), connecting motorists between northern Idaho and Wyoming.

History

Until 1995 in Montana near the Idaho border, I-90 was not a divided highway for a few stretches, having only a narrow paved median. From 1995 until 1999, the speed limit in Montana was "reasonable and prudent"; it is now 75 mph (120 km/h). On I-90, at Exit 0 (right on the MT/ID border) is the Lookout Pass Ski Area, one exit east of there is the Hiawatha Trail (rails-to-trails).

Exit list

County Location Mile # Destinations Notes
Mineral 0 Lookout Pass
5 Taft Area
10 Saltese
16 Haugan
18 De Borgia
22 Henderson
25 Drexel
26 Ward Creek Road Eastbound exit and entrance only
30 Two Mile Road
33 MT 135St. Regis
37 Sloway Area
43 Dry Creek Road
Superior 47 S-257Superior
55 Lozeau, Quartz
61 Tarkio
66 Fish Creek Road
70 Cyr Westbound exit and eastbound entrance
Alberton 75 Alberton
Missoula 77 S-507 (Petty Creek Road) – Alberton
82 Nine Mile Road
85 Huson
89 Frenchtown
96 US 93 north / MT 200 west – Kalispell West end of US 93/MT 200 overlap
99 Airway Boulevard
Missoula 101 I-90 Bus. east / US 93 south (Reserve Street) – Hamilton East end of US 93 overlap
104 Orange Street
105 I-90 Bus. west / US 12 west (Van Buren Street) West end of US 12 overlap
107 East Missoula
109 MT 200 east – Bonner, Great Falls East end of MT 200 overlap
113 Turah
120 Clinton
126 Rock Creek Road
Granite 130 Beavertail Road
138 Bearmouth Area
Drummond 153 MT 1Drummond, Phillipsburg Eastbound exit and westbound entrance
154 To MT 1Drummond, Phillipsburg Westbound exit and eastbound entrance
Powell 162 Jens
166 Gold Creek
170 Phosphate
174 US 12 east – Garrison, Helena East end of US 12 overlap; eastbound exit and westbound entrance
175 To US 12 east – Garrison, Helena No westbound entrance
179 Beck Hill Road
Deer Lodge 184 I-90 Bus. east – Deer Lodge
187 I-90 Bus. west – Deer Lodge No westbound entrance
195 Racetrack
Deer Lodge 197 S-273 – Galen
201 Warm Springs
208 MT 1Anaconda, Opportunity
Silver Bow 211 S-441 – Gregson, Fairmont, Hot Springs
216 Ramsay
219 I-15 south – Dillon, Idaho Falls West end of I-15 overlap
122 Rocker
124 I-115 east (I-15 Bus. north, I-90 Bus. east)  – City Center Eastbound exit and westbound entrance
Butte 126 Montana Street
127 I-15 Bus. south / I-90 Bus. west (Harrison Avenue, MT 2) Signed as exits 127A (south) and 127B (north) eastbound
227 I-15 north – Helena East end of I-15 overlap
228 Continental Drive
233 Homestake
Jefferson 241 Pipestone
Whitehall 249 MT 55 to MT 69Whitehall
256 S-359Cardwell, Boulder
267 Milligan Canyon Road
Broadwater 274 US 287Helena, Ennis
Gallatin 278 MT 2 / S-205Three Forks, Trident
283 Logan, Trident
288 S-288 to S-346Manhattan, Amsterdam
Belgrade 298 File:MT-sec-291.svg MT 85 / S-291Amsterdam, Belgrade, West Yellowstone
Bozeman 305 S-412 (North 19th Avenue) / Springhill Road
306 I-90 Bus. east / S-205 (North 7th Avenue) to US 191 south
309 I-90 Bus. south / US 191 (Main Street) West end of US 191 overlap
313 Bear Canyon Road
316 Trail Creek Road
319 Jackson Creek Road
324 Ranch Access
Park 330 I-90 Bus. east – Livingston
Livingston 333 US 89 south – Yellowstone National Park, Livingston City Center West end of US 89 overlap
337 I-90 Bus. west – Livingston
340 US 89 north – White Sulphur Springs East end of US 89 overlap
343 Mission Creek Road
350 East End Access
352 Ranch Access
Sweet Grass 354 S-563 – Springdale
362 De Hart
367 I-90 Bus. east / US 191 north – Big Timber, Harlowton East end of US 191 overlap
370 I-90 Bus. west to US 191 north – Big Timber, Harlowton
377 Greycliff
384 Bridger Creek Road
Stillwater 392 Reed Point
396 Ranch Access
400 Springtime Road
408 MT 78Columbus
426 Park City
Yellowstone 433 I-90 Bus. east – West Laurel Eastbound exit and westbound entrance
Laurel 434 US 212 west / US 310Laurel, Red Lodge West end of US 212 overlap
437 I-90 Bus. west / South Frontage Road – East Laurel
Billings 443 Zoo Drive
446 I-90 Bus. east / King Avenue West, Mullowney Lane – West Billings
447 South Billings Boulevard – Billings City Center
450 MT 3 (27th Street) – Billings City Center
452 I-90 Bus. west / US 87 north – Roundup, Lockwood West end of US 87 overlap
455 Johnson Lane
456 I-94 east – Miles City, Bismarck
462 Pryor Creek Road
469 Arrow Creek Road
Big Horn 478 Fly Creek Road
484 Frontage Road – Toluca
Hardin 495 I-90 Bus. east / MT 47Hardin City Center
497 I-90 Bus. west (Third Street) – Hardin
503 Dunmore
509 Crow Agency
510 US 212 east – Little Bighorn Battlefield, Broadus East end of US 212 overlap
514 Garryowen
530 S-463Lodge Grass
544 Wyola
549 Aberdeen

References

Interstate 90
Previous state:
Idaho
Montana Next state:
Wyoming
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