Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Boulder River Bridge | Bridge | 1474 | Jefferson | 46 12 40 N | 112 05 29 W |
| Box Elder Creek Bridge | Bridge | 861 | Petroleum | 47 04 11 N | 108 17 02 W |
| Brundage Bridge | Bridge | 2016 | Beaverhead | 44 39 27 N | 111 58 59 W |
| Buckhouse Bridge | Bridge | 951 | Missoula | 46 49 54 N | 114 03 16 W |
| Buckingham Coulee Bridge | Bridge | 835 | Treasure | 46 15 16 N | 107 17 02 W |
| Bucks Bridge | Bridge | 885 | Chouteau | 47 51 20 N | 110 58 03 W |
| Buffalo Bridge | Bridge | 805 | Lake | 47 38 56 N | 114 20 45 W |
| Burlington Northern Overpass Bridge | Bridge | 699 | Phillips | 48 23 52 N | 108 14 37 W |
| Cadotte Creek Bridge | Bridge | 1566 | Lewis and Clark | 47 03 35 N | 112 25 03 W |
| California Street Bridge (historical) | Bridge | 964 | Missoula | 46 52 32 N | 114 00 43 W |
| Calipso Bridge (historical) | Bridge | 665 | Prairie | 46 46 46 N | 105 24 42 W |
| Cameron Bridge | Bridge | 1372 | Gallatin | 45 44 37 N | 111 13 31 W |
| Carter Bridge | Bridge | 1386 | Park | 45 35 49 N | 110 34 02 W |
| Central Park Bridge | Bridge | 1319 | Gallatin | 45 49 25 N | 111 16 18 W |
| Chicago Milwaukee Saint Paul and Pacific Overpass Bridge | Bridge | 1257 | Fergus | 47 03 20 N | 109 28 24 W |
| Chicago Milwaukee Saint Paul and Pacific Railroad Bridge | Bridge | 1038 | Cascade | 47 30 57 N | 111 15 52 W |
| Chouteau County Memorial Bridge | Bridge | 798 | Chouteau | 47 48 55 N | 110 40 03 W |
| Circle Bridge | Bridge | 839 | Liberty | 48 15 34 N | 110 53 28 W |
| Circle Diamond Coulee Bridge | Bridge | 752 | Phillips | 48 24 60 N | 107 51 02 W |
| Clark Fork Bridge | Bridge | 969 | Missoula | 46 52 18 N | 114 00 01 W |
| Clark Fork River Bridge | Bridge | 890 | Mineral | 47 00 50 N | 114 30 26 W |
| Clark Fork River Bridge | Bridge | 975 | Missoula | 46 51 60 N | 113 59 17 W |
| Clark Fork River Bridge | Bridge | 1319 | Powell | 46 31 12 N | 112 48 31 W |
| Clark Fork River Bridge | Bridge | 1377 | Powell | 46 23 26 N | 112 44 13 W |
| Clark Fork River Bridge | Bridge | 712 | Sanders | 47 37 18 N | 115 23 29 W |
| Clarks Fork of the Yellowstone Bridge | Bridge | 1073 | Carbon | 45 23 30 N | 108 53 43 W |
| Clarks Fork of the Yellowstone River Bridge | Bridge | 1159 | Carbon | 45 09 24 N | 109 00 21 W |
| Clear Creek Bridge | Bridge | 1108 | Blaine | 48 18 02 N | 109 29 34 W |
| Coal Banks Bridge | Bridge | 776 | Chouteau | 48 02 22 N | 110 13 60 W |
| Coram Bridge | Bridge | 932 | Flathead | 48 24 32 N | 114 03 09 W |
| Cottonwood Creek Bridge | Bridge | 818 | Custer | 46 16 09 N | 106 02 06 W |
| Cottonwood Creek Bridge | Bridge | 1392 | Powell | 46 23 45 N | 112 43 48 W |
| Cow Creek Bridge | Bridge | 1139 | Blaine | 48 05 11 N | 109 18 25 W |
| Craig Bridge | Bridge | 1049 | Lewis and Clark | 47 04 28 N | 111 57 41 W |
| Culbertson Missouri River Bridge | Bridge | 577 | Roosevelt | 48 07 24 N | 104 28 30 W |
| Cyr Bridge | Bridge | 875 | Mineral | 47 00 23 N | 114 34 42 W |
| Dale Creek Bridge | Bridge | 1570 | Stillwater | 45 25 20 N | 109 44 23 W |
| David Thompson Bridge | Bridge | 802 | Lincoln | 48 21 57 N | 115 18 34 W |
| Dearborn River High Bridge | Bridge | 1387 | Lewis and Clark | 47 17 39 N | 112 26 48 W |
| Dent Bridge | Bridge | 933 | Chouteau | 47 52 37 N | 111 11 50 W |
| Dickie Bridge | Bridge | 1735 | Beaverhead | 45 50 47 N | 113 03 31 W |
| Dodson South Canal Bridge | Bridge | 689 | Phillips | 48 20 58 N | 107 52 27 W |
| Drummond Bridge | Bridge | 1208 | Granite | 46 39 37 N | 113 08 46 W |
| Dry Channel Bridge | Bridge | 732 | Sanders | 47 35 38 N | 115 21 34 W |
| Dry Wolf Creek Bridge | Bridge | 1617 | Judith Basin | 47 02 14 N | 110 27 35 W |
| Durnam Bridge | Bridge | 1771 | Gallatin | 45 19 60 N | 111 10 18 W |
| East Fork of the Bitterroot River Bridge | Bridge | 1244 | Ravalli | 45 55 01 N | 114 06 12 W |
| East Rosebud Creek Bridge | Bridge | 1524 | Carbon | 45 20 58 N | 109 29 47 W |
| Eightmile Bridge | Bridge | 1354 | Sweet Grass | 45 43 24 N | 109 59 48 W |
| Elbow Creek Bridge | Bridge | 1069 | Carbon | 45 26 60 N | 108 52 55 W |
| Emigrant Creek Bridge | Bridge | 1510 | Park | 45 19 52 N | 110 45 13 W |
| Erskine Bridge (historical) | Bridge | 1463 | Gallatin | 45 39 50 N | 111 09 13 W |
| F Bridge | Bridge | 922 | Toole | 48 23 01 N | 111 43 07 W |
| Ferry Creek Bridge | Bridge | 1362 | Park | 45 42 05 N | 110 31 13 W |
| Fifteenth Street Bridge | Bridge | 1010 | Cascade | 47 31 18 N | 111 16 53 W |
| First Avenue North Bridge | Bridge | 1010 | Cascade | 47 30 25 N | 111 18 43 W |
| Flannery Bridge | Bridge | 1360 | Gallatin | 45 46 35 N | 111 06 33 W |
| Flathead River Bridge | Bridge | 911 | Flathead | 48 21 42 N | 114 11 03 W |
| Flathead River Bridge | Bridge | 756 | Sanders | 47 20 10 N | 114 38 51 W |
| Flemming Bridge | Bridge | 1707 | Sweet Grass | 45 24 14 N | 110 11 32 W |
| Florence Bridge | Bridge | 979 | Ravalli | 46 37 54 N | 114 02 56 W |
| Fort Benton Bridge | Bridge | 798 | Chouteau | 47 48 60 N | 110 39 58 W |
| Fort Keogh Bridge | Bridge | 714 | Custer | 46 23 53 N | 105 53 44 W |
| Gallatin Golden Gate Bridge | Bridge | 1787 | Gallatin | 45 17 55 N | 111 12 13 W |
| Gallatin River Bridge | Bridge | 1267 | Gallatin | 45 53 30 N | 111 20 12 W |
| Gateway Bridges | Bridge | 1499 | Gallatin | 45 35 28 N | 111 12 48 W |
| Gillies Bridge | Bridge | 1499 | Granite | 46 19 48 N | 113 32 11 W |
| Great Northern Railway Overpass | Bridge | 1002 | Toole | 48 30 30 N | 111 51 39 W |
| Greycliff Bridge | Bridge | 1181 | Sweet Grass | 45 45 36 N | 109 46 20 W |
| Hardy Bridge | Bridge | 1031 | Cascade | 47 10 01 N | 111 50 04 W |
| Harper Bridge | Bridge | 930 | Missoula | 46 55 53 N | 114 12 34 W |
| Harringer Bridge | Bridge | 1563 | Gallatin | 45 31 20 N | 111 15 01 W |
| Harvat Bridge | Bridge | 1361 | Park | 45 40 30 N | 110 32 12 W |
| Haskin Bridge (historical) | Bridge | 1245 | Gallatin | 45 52 60 N | 111 36 33 W |
| Henneberry Bridge | Bridge | 1638 | Beaverhead | 45 03 19 N | 112 48 55 W |
| Higgins Bridge | Bridge | 973 | Missoula | 46 52 04 N | 113 59 47 W |
| Highs Bridge | Bridge | 1787 | Gallatin | 45 17 55 N | 111 12 13 W |
| Highwood Creek Bridge | Bridge | 1142 | Chouteau | 47 30 25 N | 110 44 38 W |
| Hutchins Bridge | Bridge | 1792 | Madison | 44 53 20 N | 111 34 51 W |
| Ironrod Bridge | Bridge | 1388 | Madison | 45 38 34 N | 112 18 37 W |
| Irwin Bridge | Bridge | 1351 | Gallatin | 45 46 22 N | 111 14 21 W |
| Jack Smith Bridge | Bridge | 1822 | Gallatin | 45 16 55 N | 111 13 29 W |
| Jacobs Crossing (historical) | Bridge | 1468 | Gallatin | 45 40 47 N | 111 02 19 W |
| Jefferson River Bridge | Bridge | 1238 | Gallatin | 45 54 51 N | 111 32 34 W |
| Joslin Bridge | Bridge | 886 | Fergus | 47 25 55 N | 108 43 47 W |
| Judith River Bridge | Bridge | 1007 | Fergus | 47 14 27 N | 109 40 52 W |
| Kelly Canyon Bridge | Bridge | 1489 | Gallatin | 45 40 10 N | 110 58 13 W |
| Kerr Bridge | Bridge | 987 | Teton | 47 55 52 N | 111 33 10 W |
| Kinkle Bridge | Bridge | 1290 | Gallatin | 45 51 38 N | 111 17 27 W |
| Kinsey Bridge | Bridge | 696 | Custer | 46 31 55 N | 105 42 50 W |
| Kircher Creek Bridge | Bridge | 741 | Custer | 46 25 50 N | 105 46 14 W |
| Koocanusa Bridge | Bridge | 751 | Lincoln | 48 49 35 N | 115 16 04 W |
| Kountz Bridge | Bridge | 1318 | Jefferson | 45 50 40 N | 112 03 31 W |
| La Beau Bridge (historical) | Bridge | 1514 | Gallatin | 45 34 30 N | 111 12 58 W |
| Lemon Bridge | Bridge | 1884 | Gallatin | 45 11 40 N | 111 14 08 W |
| Lewis and Clark Bridge | Bridge | 600 | Roosevelt | 48 04 00 N | 105 32 07 W |
| Little Blackfoot River Bridge | Bridge | 1395 | Powell | 46 34 24 N | 112 39 51 W |
| Little Blackfoot River Bridge | Bridge | 1434 | Powell | 46 35 43 N | 112 35 30 W |
| Little Prickly Pear Creek Bridge | Bridge | 1081 | Lewis and Clark | 47 00 15 N | 112 04 03 W |
| Little Prickly Pear Creek Bridge | Bridge | 1188 | Lewis and Clark | 46 53 30 N | 112 07 43 W |
| Locate Creek Bridge | Bridge | 731 | Custer | 46 28 30 N | 105 18 16 W |
| Logan Bridge | Bridge | 1247 | Gallatin | 45 53 10 N | 111 26 31 W |
| Loma Bridge | Bridge | 781 | Chouteau | 47 55 55 N | 110 30 25 W |
| Lyons Bridge | Bridge | 2007 | Beaverhead | 44 38 18 N | 112 08 18 W |
| Maclay Bridge | Bridge | 964 | Missoula | 46 43 20 N | 114 02 47 W |
| Maclay Bridge | Bridge | 949 | Missoula | 46 51 12 N | 114 05 48 W |
| Madison River Bridge | Bridge | 1996 | Gallatin | 44 42 57 N | 111 06 10 W |
| Madison River Bridge | Bridge | 1356 | Madison | 45 36 25 N | 111 34 27 W |
| Main Channel Bridge | Bridge | 732 | Sanders | 47 35 38 N | 115 21 34 W |
| Main Street Bridge | Bridge | 1367 | Park | 45 39 29 N | 110 33 21 W |