Talk:List of state highways in Montana

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Montana

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Wikipedia:State route naming conventions poll/Part2

This state's highway naming convention is up for debate above. Feel free to participate. --Rschen7754 (talk - contribs) 05:46, 4 September 2006 (UTC)[reply]

Other numbers

Maps such as [1] show an additional layer of numbering (N- and P- numbers) that often agree with the state highway numbers. They may be related to the functional classification.

1: US 2; ID to ND
2: BL 94, US 12; I-94 west of Miles City to ND
3: US 89; I-15 to US 2
4: US 310, BL 90; WY to I-90 east of Laurel
5: US 93; I-90 to Canada
6: MT 200; ID to US 93
7: US 93, US 12; ID to I-90
8: US 12, US 287; BL 90 Garrison to MT 2
9: US 287; I-15 to US 89
10: US 87; US 89 to US 2
11: US 89, BL 90; Yellowstone to I-90 east of Livingston
12: US 20; ID to Yellowstone
13: MT 87, US 287, MT 2; ID to I-90 east of Three Forks
14: US 12; US 287 to I-94
15: I-15
16: US 87; I-90 to US 12
17: MT 117; MT 24 to US 2
18: MT 59; BL 94 to MT 200
19: MT 1; I-90 to I-90
20: MT 16, MT 200; BL 94 to ND
21: BL 15 Conrad
22: MT 5, MT 16; MT 13 to US 2
23: MT 59, US 212; BL 94 to WY
24: MT 200; I-90 to US 89
25: MT 13, MT 25; MT 200 to US 2
26: MT 23; MT 200 to ND
27: MT 7; Ekalaka to BL 94
28: US 212; Yellowstone to US 310
29: MT 287, MT 41, MT 2, BL 15/90; US 287 to I-115
30: MT 5; MT 16 to ND
31: MT 24; MT 42 to Canada
32: MT 13; MT 25 to Canada
33: MT 37; US 2 to US 93
34: MT 16; MT 5 to Canada
35: MT 135; I-90 to MT 200
36: MT 28; MT 200 to US 93
37: US 212; I-90 to MT 59
38: MT 40; US 93 to US 2
39: MT 39; US 212 to I-94
40: ?
41: MT 141; US 12 to MT 200
42: MT 24, MT 42; MT 200 to US 2
43: US 191; US 87 to MT 19
44: MT 44; US 89 to I-15
45: US 191; BL 90 to US 12
46: MT 43; US 93 to I-15
47: MT 48; MT 1 to I-90
48: BL 90, MT 47; I-90 east of Hardin to I-94
49: MT 41; BL 15 to MT 287
50: US 191; US 20 to I-90
51: MT 200; MT 200S to MT 20
52: MT 35; US 93 to US 2
53: MT 3; I-90 to US 12
54: MT 59; WY to US 212
55: MT 55; MT 41 to I-90
56: MT 56; MT 200 to US 2
57: MT 200, MT 200S, BL 94; US 89 to I-94 east of Glendive
58: US 89; US 2 to Canada
59: US 89; I-90 to US 12
60: US 89; US 12 to I-315
61: US 87, MT 19, US 191; US 12 to US 2
62: MT 16; US 2 to MT 200
63: US 191; US 12 to US 87
64: ?
65: Going to the Sun Highway; US 2 to Glacier
66: MT 66; US 191 to US 2
67: BL 15 Shelby
68: MT 68; I-15 to I-15
69: MT 69; MT 55 to I-15
70: ?
71: ?
72: MT 72; WY to US 310
73: ?
74: ?
75: US 87 Bus. Lewistown
76: ?
77: ?
78: MT 78; US 212 to I-90
79: ?
80: MT 80; US 87 to US 87
81: MT 81; MT 80 to US 191
82: MT 82; US 93 to MT 35
83: MT 83; MT 200 to MT 35
84: MT 84; US 287 to US 191
85: MT 85; US 191 to I-90
86: MT 86; I-90 to US 89
87: US 287; MT 87 to US 191
88: BL 90 Garrison
89: BL 15 Dillon
90: I-90
91: BL 90 Big Timber
92: US 93; I-90 to US 12
93: US 12; ID to US 93
94: I-94
95: Cartersville Road north of Forsyth
96: BL 90 Drummond
97: BL 94 Wibaux
98: BL 94 Glendive west of MT 200S
99: US 191; US 2 to Canada
100: ?
101: ?
102: Great Falls Northeast Bypass

--NE2 00:52, 28 March 2008 (UTC)[reply]

The functional classification designations refer to the various funding pots available for maintenance funding. "I" is used exclusively for federal Interstates. "N" is used for all other National Highway System-funded routes, even those completely signed as state highways. "P" routes are generally Primary State Highway System, "S" routes are Secondary State Highway System, and "U" routes are Urban routes through city and urban limits. Older editions of the road log also listed "X" for off-system routes eligible for other funding, e.g. MT 38 is X-81024, even though it has a Primary route number, because most of its route is through National Forest land. (MT 49 is also affected this way.) Off-system routes are still listed in the state GIS database. 184.166.187.64 (talk) 10:35, 4 May 2017 (UTC)[reply]

Missing primary state route info

Just an FYI, I can't find any trace of MT-10 or MT-89 on Google Maps or other sources. Perhaps they're decommissioned routes? Someone who's native to Montana and/or knows how to read the MT route logs may be able to figure this out.71.58.106.195 (talk) 05:30, 4 March 2017 (UTC)[reply]

I have been doing extensive research on the historical Montana state highway maps dating back to 1935, and based on this research, it appears MT 10 and MT 89 have never been assigned. Very rarely has Montana used state route numbers when an active federal route with the same number exists. The only historical exceptions are MT 287 (established before the US 287 designation replacing most of MT 287), 1935-era MT 191 (replaced by US 287) from US 191 to near Three Forks, MT 87 (nowhere near the US route), and MT 2 (replaced a section of old US 10 from Butte to Three Forks, but nowhere near the US route). 184.166.187.64 (talk) 10:06, 4 May 2017 (UTC)[reply]