U.S. Route 87 in Montana

This article is about the section of highway in Montana. For the entire length of highway, see U.S. Route 87.

U.S. Highway 87 marker
U.S. Highway 87
Map
US 87 highlighted in red
Route information
Maintained by MDT
Length444.376 mi[1] (715.154 km)
Existed1926–present
Major junctions
South end I-90 / US 87 at the Wyoming state line near Ranchester, WY
Major intersections
North end US 2 near Havre
Location
CountryUnited States
StateMontana
CountiesBig Horn, Yellowstone, Musselshell, Petroleum, Fergus, Judith Basin, Cascade, Chouteau, Hill
Highway system
← MT 86→ MT 87

U.S. Route 87 (US 87) is a part of the U.S. Highway System that travels Port Lavaca, Texas, north to Havre, Montana. In the state of Montana, It extends approximately 444 miles (715 km) from the Wyoming state line near Wyola north to its terminus at US 2 near Havre.

Route description

US 87 enters Montana running concurrently with Interstate 90 (I-90) and travels westward for 45.3 miles (72.9 km) to Crow Agency, where US 212 merges with the route. The three routes continue westward for another 54.6 miles (87.9 km) to Billings, where it intersects with the western terminus of I-94 in suburban Lockwood. US 87 follows the I-90/US 212 concurrency for another 3.3 miles (5.3 km) before it heads north, following Main Street through Billings Heights. US 87 continues north for 51 miles (82 km) and intersects US 12, sharing a 2.1-mile (3.4 km) concurrency through Roundup. US 87 continues north with a slight bend to the northwest for 44.7 miles (71.9 km) until it intersects Montana State Highway 200 (MT 200) near Grass Range and takes a sharp turn west; US 87 remains concurrent with MT 200 until Great Falls. US 87 and MT 200 travel west for 30.6 miles (49.2 km) to Lewistown, where they merge with US 191 and continue heading generally westward. About 14.3 miles (23.0 km) west of Lewistown near Moore, it breaks with US 191 and merges with MT 3, where they head northwest for 64.7 miles (104.1 km) and merge with US 89 near Armington. The four-route concurrency of US 87/US 89/MT 3/MT 200 continues northwest for 22.7 miles (36.5 km) to Great Falls, where US 87 leaves all three and travels north through the city. North of Great Falls, US 87 travels northeast for 37.4 miles (60.2 km) to Fort Benton and a final 70 miles (110 km) to its terminus with US 2, about two miles (3.2 km) west of Havre.[1]

History

US 87 originally ran northwest out of Great Falls towards the eastern border of Glacier National Park to the Canadian Border at the Piegan Border Crossing. This was changed in 1934, when US 89 was diverted to US 87's routing north of Great Falls. US 87 terminated in Great Falls until c. 1945 when it was extended to its current northern terminus near Havre.[2]

Major intersections

CountyLocationmi[1]kmDestinationsNotes
Big Horn​0.0000.000

 I-90 east / US 87 south – Sheridan		Continuation into Wyoming
Module:Jctint/USA warning: Unused argument(s): exit
See I-90 (exits 452-549)
YellowstoneBillings103.288166.226


 I-90 west / US 212 west / I-90 BL begins – Butte		I-90 exit 452; north end of I-90 / US 212 concurrency; south end of I-90 BL concurrency
104.552168.260
 I-90 BL west (1st Avenue N) – Billings City Center		North end of I-90 BL concurrency
MusselshellCamp Three152.198244.939
 US 12 west – Harlowton		South end of US 12 concurrency
Roundup154.266248.267
 US 12 east – Forsyth		North end of US 12 concurrency
​174.686281.130
 S-244 north – Winnett
Petroleum
 No major junctions
Fergus​198.930320.147

 MT 19 east / MT 200 north – Malta, Jordan		South end of MT 200 concurrency; southern terminus of MT 19
Lewistown229.517369.372


 US 87 Byp. north (Truck Bypass) to US 191 / S-238 south (1st Avenue) – Great Falls		Former US 191 Bus.
232.456374.102
 US 191 north / US 87 Byp. south (Truck Bypass)		South end of US 191 concurrency
Eddies Corner246.791397.172

 US 191 south / MT 3 south – Harlowton		North end of US 191 concurrency; south end of MT 3 concurrency
Judith Basin​252.944407.074
 S-239 west – Hobson, Utica
Moccasin256.720413.151
 S-426 north
​261.737421.225
 S-207 north – Benchland
268.684432.405
 S-541 south
274.789442.230
 MT 80 north – Stanford, Fort Benton		MT 80 southern terminus
Geyser290.081466.840
 S-551 north – Geyser
​300.961484.350
 S-427 south – White Sulphur Springs
CascadeArmington Junction311.488501.291
 US 89 south – Monarch, White Sulphur Springs		South end of US 89 concurrency
​315.091507.090
 S-331 north – Belt
327.947527.780

 S-227 north / S-228 south – Sand Coulee, Highwood
Great Falls330.966532.638

 US 87 Byp. north (57th Street) – Malmstrom AFB
334.146537.756



 US 89 north / MT 3 west / MT 200 west (10th Avenue S) to I-15		North end of US 89 / MT 3 / MT 200 concurrency
335.893540.567River Drive (US 87 Byp. south)
337.008542.362




 Northwest Bypass to I-15 / US 89 north / MT 200 west
337.130542.558
 S-225 north (Bootlegger Trail)
ChouteauCarter360.532580.220
 S-564 north
​372.817599.991
 S-386 east
374.400602.538

 S-223 north / MT 80 south – Tiber Dam, Chester, Fort Benton		MT 80 northern terminus
376.909606.576
 S-387 south – Fort Benton
Big Sandy412.379663.660

 S-432 north (Kenilworth Road) / S-236 south (Judith Landing Road)
HillBox Elder423.354681.322
 S-448 east
​434.741699.648
 S-334 south – Rocky Boy's Agency
West Havre444.376715.154 US 2 – Shelby, HavreUS 87 northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Main article: Special routes of U.S. Route 87

See also

References

  1. ^ a b c Road Inventory and Mapping Section (2013). Montana Road Log (PDF). Helena: Montana Department of Transportation. pp. 16–18, 63–66, 95–96, 70–72, 95–96, 100–101. Archived from the original (PDF) on January 1, 2020. Retrieved November 27, 2020.
  2. ^ Sanderson, Dale (April 13, 2020). "End of US Highway 87". US Ends.com. Retrieved December 1, 2020.[self-published source]
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Template:Attached KML/U.S. Route 87 in Montana
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allikas: http://en.wikipedia.org/wiki/Montana_Highway_29