Montana Highway 1

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Montana Highway 1 marker

Montana Highway 1
MT 1 highlighted in red
Route information
Maintained by MDT
Length63.652 mi (102.438 km)
ExistedOctober 9, 1922[1]–present
Major junctions
South end I-90 at the Anaconda I-90 Junction
  MT 48 in Anaconda
MT 38 in Porter's Corner
North end I-90 in Drummond
Location
CountiesDeer Lodge, Granite
Highway system
US 287US 2

Montana State Highway 1 (MT 1) is a state highway located in southwestern Montana, extending west and north from the Anaconda I-90 Junction to Drummond. Both the beginning and endpoints of the road are on Interstate 90. It is known as the Pintler Scenic Loop and provides access to the community of Philipsburg as well as the Georgetown Lake area and the Discovery Ski Area.[2]

Montana Highway 1 was one of the first roads to be paved in its entirety in Montana and has seen many changes over the years. This road was formerly designated as U.S. Highway 10 Alternate (US 10 ALT). It received its current number after US 10 was decommissioned through the area in 1986.

History[edit]


U.S. Route 10 Alternate
LocationOpportunity–Drummond
Length63.5 mi[4] (102.2 km)
Existedc. 1937[5]c. 1986[3]

MT 1 was first designated on October 9, 1922, near its present location.[1] By 1924, its route had been designated as part of the National Parks Highway Auto Trail. This route followed the general path of MT 1, traveling from Opportunity through Anaconda and Philipsburg to Drummond. The overall length of the routing was approximately 76 miles (122 km), and was generally an unimproved dirt road.[6] By the next year, the National Parks Highway had been rerouted away from this route. The unsigned MT 1 had been rerouted, now with an overall length of approximately 78 miles (126 km). Also by 1925, the portion of MT 1 traveling from its southern terminus to Anaconda had been paved. Also, the section of the highway near the town of Brown traveling to Stone had been graded, while the rest of the route remained unimproved dirt.[7] By at least 1927, MT 1 had been rerouted, with an overall length of approximately 71 miles (114 km), and the portion of the highway traveling from Stone to its northern terminus had been graded.[8] At least two years later, the entire length of the route had been graded.[9] In 1934, the portion of MT 1 that traveled from modern-day milepost 24.190 to the Deer Lodge–Granite County border was reconstructed along its current route.[10]

By 1937, MT 1 had been concurrently numbered as US 10, and later that year, US 10 was rerouted, and MT 1 was renumbered as US 10 ALT. Also by that time, the route had been rerouted so that the overall length was approximately 70 miles (110 km), and the entire length of the route had at least a graded gravel surface.[5] By 1948, the portion of the route that traveled from Philipsburg to Drummond had been paved.[11] In 1951, the entire length of MT 1/US 10 ALT was paved, with an overall length of approximately 66 miles (106 km).[12] Also, the portion of MT 1/US 10 ALT traveling from present day mileposts 9.426 to 9.940 was reconstructed along its current route.[10] In 1957, the sections of MT 1/US 10 ALT traveling from modern route mileposts 16.757 to 21.934 and 30.703 to 38.405 were reconstructed along the present route.[10] In 1960, the portions of the highway traveling from current mileposts 21.935 to 24.189 and 38.406 to 48.106 were reconstructed along the present road.[10] The next year, the portion of MT 1/US 10 ALT traveling from the junction with S-441 to the junction with Elm Street (U-203) were rebuilt along the highway's present location.[10] In 1964, the portion of the road traveling from the southern terminus to the junction with S-441 were reconstructed to the present day routing.[10][13] Two years later, the portion traveling from modern milepost 62.323 to the northern terminus were reconstructed.[14] In 1975, the portion traveling from Elm Street to Sycamore Street (U-201) was reconstructed to the modern route.[10] In 1976, the route had an approximate length of 63.5 miles (102.2 km).[4]

In 1986, U.S. Route 10 was replaced in Montana by Interstate 90. This caused the removal of the concurrent U.S. Route 10 Alternate numbering from MT 1.[3] In 2000, the portion of MT 1 traveling from modern mileposts 48.107 to 62.322 was reconstructed to the current routing.[10][14] In 2008, the small portion traveling from mileposts 10.058 to 16.756 was reconstructed.[10] The route has not been changed since.[15]

Major intersections[edit]

CountyLocationmi[15]kmDestinationsNotes
Deer Lodge0.0000.000 I-90Exit 208 on I-90
AnacondaOpportunity line2.7724.461 S-441
4.3907.065 S-274 (Mill Creek Road)
5.5468.925 MT 48Western terminus of MT 48
GranitePorter's Corner31.46350.635 MT 38 (Skalkaho Pass Road)Eastern terminus of MT 38
Philipsburg38.21961.508 S-348
Hall57.21392.075 S-513 / S-512
Drummond63.652102.438 I-90Exit 153 on I-90
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]

Route map:

KML is from Wikidata

References[edit]

Footnotes
  1. ^ a b Montana Road Log p. 102
  2. ^ Google (August 16, 2012). "Overview Map of Montana Highway 1" (Map). Google Maps. Google. Retrieved August 16, 2012.
  3. ^ a b Western United States (Map) (1986 ed.). Cartography by General Drafting Company. Exxon. 1986. § D2–D3.
  4. ^ a b Highway Map of Montana with Mileages (Map) (1976 ed.). Cartography by H.M. Gousha Company. Shell Oil. 1976. § D5-E6.
  5. ^ a b Idaho, Montana, Wyoming (Map) (1937 ed.). Cartography by Rand McNally. Texaco. 1937. § D5–E6.
  6. ^ Auto Trails Map: District No. 13 (Map) (1924 ed.). Cartography by Rand McNally and Company. Rand McNally and Company. 1924. § AL–BE.
  7. ^ Auto Trails map Idaho–Montana–Wyoming (Map) (1925 ed.). Cartography by Rand McNally and Company. Rand McNally and Company. 1925. § D5–E6.
  8. ^ Junior Auto Road Map Montana (Map) (1927 ed.). Cartography by Rand McNally and Company. Rand McNally and Company. 1927. § D3–E4.
  9. ^ Montana, North Dakota, South Dakota, Wyoming, Nebraska (Map) (1929 ed.). Cartography by Touring Club Italiano Cartography Division. Touring Club Italiano. 1929. § I9–K11.
  10. ^ a b c d e f g h i Montana Road Log p. 148
  11. ^ Montana (Map) (1948 ed.). Cartography by C.S. Hammond. National Atlas. 1948. § C3, D3.
  12. ^ Highway Map of Montana (Map) (1951 ed.). Cartography by H.M. Gousha Company. Shell Oil. 1951. § D5–E6.
  13. ^ Montana Road Log p. 147
  14. ^ a b Montana Road Log p. 149
  15. ^ a b Montana Road Log pp. 147-9
Bibliography

Staff (2011). Montana Road Log (PDF) (Report) (2011 ed.). Montana Department of Transportation. pp. 102, 147–9. Retrieved August 13, 2012.