| S 67 over Front St-rr | Fair | 381.9 ft | 2,161 | 1938 |
| I 15 over Sep County Road | Fair | 77.1 ft | 1,520 | 1976 |
| I 15 over Sep County Road | Fair | 75.1 ft | 1,520 | 1976 |
| I 15 over Int Shelby-rr | Fair | 428.8 ft | 1,021 | 1960 |
| I 15 over Int Shelby-rr | Fair | 428.8 ft | 1,021 | 1960 |
| I 15 over Int Kevin HWY | Fair | 120.1 ft | 972 | 1964 |
| I 15 over Int 1st ST NE | Fair | 169.9 ft | 955 | 1961 |
| I 15 over Rr | Fair | 336.0 ft | 955 | 1977 |
| I 15 over Rr | Fair | 313.0 ft | 955 | 1961 |
| Marias Valley RD over Sep I 15 010 | Fair | 295.6 ft | 511 | 1976 |
| Marias Valley RD over Marias River 001 | Fair | 544.9 ft | 511 | 1936 |
| Oilmont HWY over West Fork Willow Creek | Fair | 71.9 ft | 106 | 1967 |
| Bootlegger Trail over Willow Creek 009 | Fair | 30.8 ft | 100 | 1987 |
| Potter RD over Int Potter RD I 15 004 | Fair | 232.9 ft | 100 | 1980 |
| Nutter Lease RD over Sep I 15 008 | Fair | 224.7 ft | 100 | 1971 |
| Lincoln RD over Int Marias Valley RD 007 | Fair | 286.7 ft | 100 | 1976 |
| S 67 over Int N Shelby I 15 | Fair | 280.8 ft | 100 | 1960 |
| F Bridge RD over Marias River | Fair | 455.1 ft | 55 | 1953 |
| S 214-3rd AVE over Int Sweetgrass-i 15 | Fair | 257.9 ft | 48 | 1964 |
| N Devon RD over West Fork Willow CR 005 | Fair | 36.1 ft | 29 | 1980 |
| Swayze RD over Int Swayze Road I 15 002 | Fair | 223.8 ft | 13 | 1971 |
| I 15 over Marias River | Good | 483.9 ft | 1,311 | 1976 |
| I 15 over Marias River | Good | 483.9 ft | 1,311 | 1976 |
| I 15 over Int Kevin HWY | Good | 144.0 ft | 972 | 1980 |
| I 15 over Int 1st ST NE | Good | 147.0 ft | 955 | 1977 |
| US 2 over West Fork Willow Creek | Good | 158.8 ft | 931 | 2019 |
| US 2 over N Fork Willow Creek | Good | 149.9 ft | 931 | 1989 |
| Oilmont HWY over Willow Creek | Good | 113.8 ft | 106 | 1971 |
| Oilmont HWY over Miners Coulee | Good | 111.9 ft | 106 | 1974 |
| Oilmont HWY over Trail Creek | Good | 145.0 ft | 106 | 1974 |
| Jap Evans RD over Willow Creek | Good | 30.2 ft | 100 | 2020 |
| Bronken RD over Int Bronken RD I 15 003 | Good | 246.1 ft | 100 | 1964 |
| Helsa RD over Sep I 15 012 | Good | 224.7 ft | 100 | 1971 |
| Gus Blaze RD over Sep Gus Blase Road 011 | Good | 232.0 ft | 100 | 1980 |
| Mcvey-mcalpine RD over Int Mcvey Co Road 006 | Good | 257.9 ft | 22 | 1977 |