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 |
|---|---|---|---|---|---|
| BIG CREEK | Montana | Fair | 1980 | 37.8 m | 461 |
| TRAIL CREEK | Montana | Good | 2021 | 22.1 m | 461 |
| TRAIL CREEK | Montana | Good | 2021 | 22.1 m | 461 |
| TRAIL CREEK | Montana | Fair | 1961 | 18.3 m | 461 |
| TRAIL CREEK | Montana | Good | 1961 | 11.6 m | 461 |
| RUBY CREEK | Montana | Fair | 1961 | 18.3 m | 461 |
| JOCKO RIVER 054 | Montana | Fair | 1970 | 24.4 m | 460 |
| VALLEY CREEK 055 | Montana | Fair | 1960 | 9.4 m | 460 |
| DEARBORN RIVER | Montana | Fair | 1963 | 91.1 m | 460 |
| NORTH FORK FLATHEAD RIVE | Montana | Fair | 1964 | 122.7 m | 460 |
| BELT CREEK | Montana | Good | 2009 | 83.0 m | 459 |
| SUPPLY DITCH 023 | Montana | Fair | 1978 | 10.7 m | 459 |
| CRIPPLE HORSE CREEK | Montana | Poor | 1974 | 42.7 m | 458 |
| FIVE MILE CREEK | Montana | Fair | 1974 | 82.9 m | 458 |
| BERGMAN SLOUGH 019 | Montana | Fair | 1934 | 7.9 m | 457 |
| ALKALI CREEK | Montana | Fair | 1994 | 55.8 m | 456 |
| PETTY CREEK 117 | Montana | Good | 2013 | 22.6 m | 455 |
| PETTY CREEK 038 | Montana | Good | 1990 | 11.6 m | 455 |
| SEP RAPELJE-I 90 | Montana | Fair | 1971 | 150.2 m | 453 |
| KEYSER CREEK | Montana | Fair | 1976 | 28.7 m | 453 |
| APIKUNI CREEK | Montana | Fair | 1931 | 11.5 m | 452 |
| WINDY CREEK | Montana | Fair | 1931 | 11.2 m | 452 |
| GREENFIELD SOUTH CANAL | Montana | Fair | 1969 | 16.8 m | 452 |
| DRAINAGE 117 | Montana | Fair | 1939 | 8.2 m | 452 |
| BELT CREEK | Montana | Good | 1967 | 44.0 m | 451 |
| DRY FORK BELT CREEK | Montana | Good | 2014 | 9.8 m | 451 |
| BELT CREEK | Montana | Good | 1951 | 30.5 m | 451 |
| BLAINE SPRING CREEK | Montana | Good | 2016 | 39.6 m | 449 |
| MADISON RIVER | Montana | Good | 2020 | 78.0 m | 449 |
| DRY WASH | Montana | Fair | 1936 | 18.0 m | 449 |
| DRAINAGE | Montana | Fair | 1935 | 23.0 m | 448 |
| TWIN COULEE | Montana | Fair | 1935 | 17.6 m | 448 |
| TWIN COULEE | Montana | Fair | 1935 | 17.2 m | 448 |
| BIG HOLE RIVER | Montana | Fair | 1960 | 99.0 m | 448 |
| SEP I 15 12 | Montana | Fair | 1973 | 90.8 m | 448 |
| DRAINAGE | Montana | Poor | 1956 | 10.4 m | 446 |
| DRAINAGE | Montana | Fair | 2008 | 7.5 m | 446 |
| DEAN CREEK | Montana | Fair | 1935 | 23.5 m | 441 |
| CURRANT CREEK | Montana | Fair | 1936 | 28.5 m | 441 |
| DRAINAGE | Montana | Good | 2006 | 8.1 m | 441 |
| CHERRY CREEK | Montana | Fair | 2007 | 100.5 m | 441 |
| YELLOWSTONE RIVER | Montana | Fair | 1959 | 273.2 m | 441 |
| BIG SHOULDER CREEK | Montana | Fair | 1963 | 6.2 m | 440 |
| HORSETHIEF CREEK | Montana | Good | 2015 | 27.8 m | 440 |
| ELK CREEK | Montana | Good | 2008 | 24.7 m | 439 |
| ELK CREEK OVERFLOW | Montana | Good | 2008 | 24.7 m | 439 |
| BIG SPRING CREEK 133 | Montana | Poor | 1962 | 15.5 m | 437 |
| CAINS COULEE | Montana | Fair | 1964 | 10.8 m | 437 |
| DRAINAGE | Montana | Fair | 1964 | 15.7 m | 437 |
| FLAT CREEK | Montana | Good | 2007 | 22.3 m | 429 |
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.