Browse Bridge Database
5,235 bridges in the FHWA National Bridge Inventory in Montana.
National Bridge Inventory Database
Browse 5,235 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| NINEMILE CREEK 029 | Montana | Fair | 1972 | 19.5 m | 486 |
| FISHTRAP CREEK | Montana | Good | 1941 | 17.4 m | 485 |
| LAMARCHE CREEK | Montana | Good | 1941 | 24.7 m | 485 |
| DEEP CREEK | Montana | Fair | 2006 | 27.3 m | 485 |
| SEYMOUR CREEK | Montana | Good | 2006 | 16.3 m | 485 |
| BIG TIMBER CREEK | Montana | Fair | 2004 | 23.8 m | 484 |
| ALKALI CREEK | Montana | Good | 2021 | 29.6 m | 484 |
| ALKALI CREEK | Montana | Good | 2021 | 14.2 m | 484 |
| ALKALI CREEK 053 | Montana | Fair | 1969 | 7.3 m | 484 |
| MISSOURI RIVER 054 | Montana | Poor | 1933 | 154.5 m | 484 |
| SHEEP CREEK 117 | Montana | Fair | 1933 | 19.5 m | 484 |
| OTTER CREEK | Montana | Good | 2000 | 19.8 m | 484 |
| ALKALI CREEK 034 | Montana | Fair | 1989 | 11.3 m | 484 |
| CHIPPEWA CREEK | Montana | Good | 1962 | 25.0 m | 483 |
| MCDONALD CREEK | Montana | Good | 1962 | 28.0 m | 483 |
| DRAINAGE | Montana | Fair | 1955 | 9.4 m | 483 |
| SAGEHEN CREEK | Montana | Fair | 1973 | 36.9 m | 483 |
| MUSSELSHELL RIVER | Montana | Fair | 1973 | 114.0 m | 483 |
| DOG CREEK | Montana | Fair | 1985 | 8.5 m | 483 |
| CALF CREEK | Montana | Good | 1968 | 40.2 m | 483 |
| FORDS CREEK | Montana | Good | 1962 | 28.0 m | 483 |
| LITTLE BOX ELDER CREEK | Montana | Good | 1962 | 25.0 m | 483 |
| RED LODGE CREEK | Montana | Poor | 1953 | 8.2 m | 481 |
| POPLAR RIVER | Montana | Fair | 2002 | 77.6 m | 481 |
| DRAINAGE | Montana | Good | 2003 | 7.3 m | 480 |
| Russell Creek | Montana | Good | 2019 | 12.3 m | 480 |
| RUSSELL CREEK 035 | Montana | Fair | 1940 | 17.5 m | 480 |
| BOYLE-O`HANLON COULEES | Montana | Fair | 1939 | 22.9 m | 479 |
| MILK RIVER | Montana | Fair | 1957 | 112.7 m | 479 |
| DRAINAGE | Montana | Fair | 1954 | 11.6 m | 477 |
| DOG CREEK | Montana | Fair | 1954 | 11.6 m | 477 |
| DOG CREEK | Montana | Fair | 1953 | 11.6 m | 477 |
| SUN RIVER | Montana | Good | 1983 | 115.5 m | 475 |
| SAND CREEK | Montana | Fair | 1953 | 46.8 m | 474 |
| SKALKAHO CR OVERFLOW 040 | Montana | Fair | 1935 | 6.7 m | 474 |
| SKALKAHO CREEK 102 | Montana | Fair | 1972 | 16.8 m | 474 |
| DRAINAGE | Montana | Poor | 1940 | 12.0 m | 473 |
| LITTLE PIPESTONE CREEK | Montana | Fair | 1934 | 23.2 m | 473 |
| PABLO 3A CANAL 037 | Montana | Poor | 1985 | 9.1 m | 471 |
| VALIER CANAL | Montana | Good | 1965 | 25.3 m | 470 |
| SPRING CREEK 111 | Montana | Fair | 1960 | 8.8 m | 468 |
| QUARTZ CREEK 037 | Montana | Good | 1987 | 18.9 m | 465 |
| SOUTH FORK BEAR CREEK | Montana | Good | 1960 | 28.0 m | 465 |
| NORTH FORK BEAR CREEK | Montana | Good | 1960 | 25.0 m | 465 |
| DRAINAGE | Montana | Fair | 2004 | 7.7 m | 462 |
| DRAINAGE-STOCKPASS | Montana | Good | 2023 | 7.9 m | 462 |
| PADEN COULEE | Montana | Good | 2023 | 7.5 m | 462 |
| BIG DRY CREEK | Montana | Fair | 2013 | 133.8 m | 462 |
| MAXWELL COULEE | Montana | Fair | 2012 | 31.8 m | 462 |
| L-S CREEK | Montana | Good | 2016 | 52.7 m | 462 |
Frequently Asked Questions
The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.
ADT stands for Average Daily Traffic, the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.
Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.