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 |
|---|---|---|---|---|---|
| POORMAN CREEK 153 | Montana | Good | 2009 | 12.9 m | 301 |
| JACK CREEK 028 | Montana | Poor | 1952 | 8.2 m | 301 |
| JACK CREEK 029 | Montana | Good | 2011 | 8.4 m | 301 |
| JACK CREEK 027 | Montana | Fair | 1952 | 7.9 m | 301 |
| ST. MARY RIVER | Montana | Fair | 1964 | 55.6 m | 300 |
| SWIFT CURRENT CREEK | Montana | Fair | 1966 | 51.8 m | 300 |
| LODGE GRASS CREEK | Montana | Fair | 1962 | 18.2 m | 300 |
| SWIFT CURRENT CREEK | Montana | Good | 2014 | 25.9 m | 300 |
| PASS CREEK | Montana | Fair | 1949 | 19.8 m | 299 |
| CLARK FORK 015 | Montana | Fair | 1982 | 130.9 m | 299 |
| DRY CREEK 002 | Montana | Good | 1962 | 13.7 m | 299 |
| PASS CREEK | Montana | Good | 1949 | 19.8 m | 299 |
| BEAVERHEAD RIVER 047 | Montana | Fair | 1995 | 30.9 m | 298 |
| LOCAL DRAINAGE 048 | Montana | Fair | 1959 | 8.2 m | 298 |
| CANYON DITCH | Montana | Fair | 1982 | 15.5 m | 298 |
| LITTLE DRY CREEK | Montana | Fair | 1976 | 37.3 m | 295 |
| THOMPSON CREEK | Montana | Fair | 1997 | 11.4 m | 295 |
| SMITH RIVER | Montana | Fair | 1950 | 39.6 m | 294 |
| SMITH RIVER | Montana | Good | 1962 | 43.9 m | 294 |
| DRAINAGE-STOCKPASS | Montana | Good | 2000 | 6.7 m | 294 |
| BIG CALIFORNIA CREEK | Montana | Good | 2019 | 25.3 m | 293 |
| FRENCH GULCH 042 | Montana | Good | 2015 | 28.4 m | 293 |
| FRENCH CREEK 043 | Montana | Fair | 1950 | 17.4 m | 293 |
| Dry fork Creek | Montana | Good | 2024 | 43.0 m | 292 |
| West Fk Porcupine Creek | Montana | Good | 2024 | 34.7 m | 292 |
| WHITETAIL CREEK | Montana | Fair | 1983 | 7.9 m | 292 |
| PABLO 31A CANAL 036 | Montana | Poor | 2009 | 24.4 m | 292 |
| BIRCH CREEK | Montana | Fair | 1965 | 87.1 m | 292 |
| DRAINAGE | Montana | Fair | 1939 | 17.7 m | 292 |
| GRASSHOPPER CREEK 016 | Montana | Good | 1998 | 21.0 m | 292 |
| CLARKS FK YELLOWSTONE024 | Montana | Good | 1997 | 125.2 m | 290 |
| MISSOURI RIVER | Montana | Fair | 1954 | 199.0 m | 289 |
| BITTERROOT RIVER 074 | Montana | Fair | 1917 | 50.0 m | 289 |
| POPLAR RIVER | Montana | Good | 1988 | 57.6 m | 285 |
| NEGRO COULEE | Montana | Good | 1988 | 27.1 m | 285 |
| GREENFIELD MAIN CANAL | Montana | Fair | 1959 | 18.0 m | 285 |
| GREENFIELD MAIN CANAL | Montana | Fair | 1959 | 17.4 m | 285 |
| WARM SPRINGS CREEK 009 | Montana | Fair | 1960 | 7.3 m | 283 |
| IRRIGATION DITCH 001 | Montana | Poor | 1933 | 7.9 m | 281 |
| LITTLE BLACKFOOT R 019 | Montana | Fair | 1960 | 10.5 m | 281 |
| CLARK FORK RIVER 038 | Montana | Fair | 1989 | 34.6 m | 280 |
| CLARK FORK RIVER 03 | Montana | Fair | 1989 | 34.9 m | 280 |
| MIDDLE FORK ROCK CR 032 | Montana | Good | 2004 | 26.0 m | 278 |
| ROCK CREEK 013 | Montana | Good | 1989 | 42.9 m | 278 |
| DRAINAGE | Montana | Good | 1999 | 6.5 m | 275 |
| SPREAD CREEK | Montana | Good | 1989 | 41.1 m | 274 |
| PETE CREEK | Montana | Good | 1989 | 22.3 m | 274 |
| RESERVATION CREEK 043 | Montana | Fair | 1936 | 30.5 m | 273 |
| IRRIGATION DITCH 024 | Montana | Fair | 1933 | 17.8 m | 273 |
| WYANT COULEE 044 | Montana | Fair | 1932 | 20.0 m | 273 |
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.