Montana Highway 3 marker

Montana Highway 3

MT 3 highlighted in red
Route information
Maintained by MDT
Length221.770 mi[1] (356.904 km)
Major junctions
South end I-90 / US 212 in Billings
Major intersections
North end I-15 / US 89 in Great Falls
Location
CountryUnited States
StateMontana
Highway system
MT 2 MT 5

Montana Highway 3 (MT 3) is a highway in central Montana extending north from Billings to Great Falls.[2][3]

Route description

At its southern end, MT 3 begins at I-90 in Billings and travels northwest 47 miles (76 km) to US 12 near Lavina – this is the only section of MT 3 that is not concurrent with a US highway. MT 3 joins US 12 and travels 45 miles (72 km) west to Harlowton, where it leaves US 12 and joins US 191, and travels north for 39 miles (63 km) to Eddie's Corner (near Moore). At Eddie's Corner, MT 3 turns west, leaving US 191 and joining the US 87 / MT 200 concurrency, and travels west 65 miles (105 km) to Armington where US 89 joins the highway. The four highways continue 23 miles (37 km) to Great Falls, where it follows a 0.8-mile (1.3 km) concurrency with I-315 and ends at I-15.[1][3]

MT 3 is part of the Camino Real Corridor (Corridor 27), a High Priority Corridor that connects El Paso, Texas to the Canada–United States border at Sweet Grass, Montana. The corridor is anchored by Interstate 25 and is part of the larger Ports-to-Plains Alliance. MT 3 is connected to the Canadian border via I-15, and is connected to I-25 in Buffalo, Wyoming via I-90.[4]

Major intersections

CountyLocationmi[1]kmDestinationsNotes
YellowstoneBillings0.0000.000
I-90 / US 212 to I-94 Butte, Sheridan
I-90 exit 450; US 212 is unsigned
1.298–
1.369
2.089–
2.203
I-90 BL (Montana Avenue / 1st Avenue North)One-way couplet
3.4995.631
Main Street to US 87 Billings Logan International Airport
Roundabout
Golden Valley47.01075.655
US 12 east Roundup, Forsyth
Southern end of US 12 concurrency
Ryegate63.285101.847

S-238 north / S-300 south – Ryegate Airport
WheatlandShawmut76.929123.805
S-297 north
Harlowton92.188148.362

US 12 west / US 191 south Harlowton, Big Timber
Northern end of US 12 concurrency; southern end of US 191 concurrency
Judith Gap109.990177.012
S-297 south
FergusEddies Corner131.421211.502


US 87 south / US 191 north / MT 200 east Lewistown
Northern end of US 191 concurrency; southern end of US 87/MT 200 concurrency
Judith Basin137.574221.404
S-239 west Hobson, Utica
Moccasin141.350227.481
S-426 north
146.367235.555
S-207 north Benchland
153.314246.735
S-541 south
159.419256.560
MT 80 north Stanford, Fort Benton
Geyser174.711281.170
S-551 north Geyser
185.591298.680
S-427 south White Sulphur Springs
CascadeArmington Junction196.118315.621
US 89 south Monarch, White Sulphur Springs
Southern end of US 89 concurrency
199.721321.420
S-331 north Belt
212.577342.110

S-227 north / S-228 south Sand Coulee, Highwood
Great Falls215.596346.968

US 87 Byp. north (57th Street) Malmstrom AFB
218.696–
218.776
351.957–
352.086

US 87 north (14th Street S / 15th Street S) Black Eagle, Havre
Northern end of US 87 concurrency; one-way couplet
219.429–
219.514
353.137–
353.274

I-15 BL north (5th Street S / 6th Street S)
Southern end of I-15 Bus. concurrency; one-way couplet
220.942355.572I-315 west / Fox Farm Road, 6th Street SWEastern terminus of unsigned I-315; southern end of I-315 concurrency; southern end of freeway
221.435356.36514th Street SouthwestI-315 exit 0
221.770356.904

I-15 / US 89 north / MT 200 west Helena, Shelby

I-315 south / I-15 BL south
Northern end of I-315/I-15 Bus./US 89/MT 200 concurrency; I-15 exit 278
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

Template:Attached KML/Montana Highway 3
KML is from Wikidata
  1. 1 2 3 "Montana Road Log" (PDF). Montana Department of Transportation. 2011. Retrieved September 14, 2011.
  2. "Montana Highway 3". Montana Code Annotated 2009. State of Montana. Retrieved 2011-09-13.
  3. 1 2 Official 2009-2010 Montana Highway Travel Map (PDF) (Map). Montana Department of Transportation. Retrieved 2011-09-13.
  4. "Statutory Listing of Corridor Descriptions". High Priority Corridors - National Highway System. FHWA. January 15, 2020. Retrieved January 10, 2021.
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