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 |
|---|---|---|---|---|---|
| YELLOWSTONE RIVER | Montana | Fair | 1962 | 222.5 m | 6,397 |
| SEP S 295 | Montana | Fair | 1962 | 39.0 m | 6,397 |
| STILLWATER RIVER | Montana | Fair | 1980 | 66.7 m | 6,375 |
| FAU 5225-14TH ST SW | Montana | Good | 1967 | 45.7 m | 6,326 |
| RR | Montana | Good | 1967 | 63.4 m | 6,326 |
| RR | Montana | Good | 1946 | 54.2 m | 6,326 |
| FAU 5225-14TH ST SW | Montana | Good | 1967 | 45.6 m | 6,326 |
| FIVE MILE CREEK | Montana | Good | 1977 | 23.8 m | 6,235 |
| BBWA CANAL | Montana | Good | 1977 | 19.2 m | 6,235 |
| BLACKFOOT RIVER | Montana | Good | 2018 | 148.2 m | 6,216 |
| ABANDONED RAILROAD | Montana | Fair | 1964 | 46.6 m | 6,216 |
| RR | Montana | Fair | 1963 | 109.4 m | 6,216 |
| ABANDONED RAILROAD | Montana | Fair | 1964 | 46.6 m | 6,216 |
| SEP RUSTIC ROAD | Montana | Fair | 1964 | 36.5 m | 6,216 |
| BLACK FOOT RIVER | Montana | Good | 2019 | 142.7 m | 6,216 |
| RR | Montana | Fair | 1963 | 100.2 m | 6,216 |
| SEP RUSTIC ROAD | Montana | Fair | 1964 | 36.5 m | 6,216 |
| TEN MILE CREEK | Montana | Good | 1962 | 15.7 m | 6,202 |
| SEP SIERRA RD E | Montana | Good | 1962 | 36.7 m | 6,202 |
| SEP SIERRA RD E | Montana | Good | 1962 | 36.7 m | 6,202 |
| TEN MILE CREEK | Montana | Good | 1962 | 15.7 m | 6,202 |
| RR | Montana | Fair | 2015 | 115.9 m | 6,197 |
| HYALITE CREEK | Montana | Fair | 2011 | 13.4 m | 6,192 |
| PRICKLY PEAR CREEK | Montana | Fair | 1941 | 10.4 m | 6,170 |
| SEP YOUNGS POINT ROAD | Montana | Good | 1970 | 41.5 m | 6,161 |
| INT COLUMBUS-9TH ST N | Montana | Fair | 1971 | 43.0 m | 6,161 |
| HENSLEY CR-HENSLEY CR RD | Montana | Fair | 1970 | 74.5 m | 6,161 |
| SEP YOUNGS POINT ROAD | Montana | Fair | 1970 | 41.5 m | 6,161 |
| PINE CREST ROAD | Montana | Fair | 1970 | 24.1 m | 6,161 |
| SEP VALLEY CREEK ROAD | Montana | Fair | 1970 | 38.4 m | 6,161 |
| INT COLUMBUS-9TH ST N | Montana | Fair | 1971 | 43.0 m | 6,161 |
| VALLEY CREEK | Montana | Fair | 1970 | 42.7 m | 6,161 |
| BIG DITCH | Montana | Fair | 1970 | 22.3 m | 6,161 |
| PINE CREST ROAD | Montana | Fair | 1970 | 24.1 m | 6,161 |
| SEP YEGENS COUNTY ROAD | Montana | Fair | 1970 | 24.1 m | 6,161 |
| SEP VALLEY CREEK ROAD | Montana | Fair | 1970 | 38.4 m | 6,161 |
| VALLEY CREEK | Montana | Fair | 1970 | 42.7 m | 6,161 |
| SEP YEGENS COUNTY ROAD | Montana | Fair | 1970 | 24.1 m | 6,161 |
| RONAN RANCH ROAD | Montana | Fair | 1970 | 24.1 m | 6,161 |
| HENSLEY CR-HENSLEY CR RD | Montana | Fair | 1970 | 68.4 m | 6,161 |
| RONAN RANCH ROAD | Montana | Fair | 1970 | 24.1 m | 6,161 |
| BIG DITCH | Montana | Fair | 1970 | 22.3 m | 6,161 |
| GALT AVE-RR | Montana | Fair | 1967 | 164.0 m | 6,158 |
| GALT AVE-RR | Montana | Fair | 1967 | 168.6 m | 6,158 |
| UPPER DEER CREEK | Montana | Fair | 1980 | 52.4 m | 6,153 |
| LOWER DEER CREEK | Montana | Fair | 1980 | 21.8 m | 6,153 |
| UPPER DEER CREEK | Montana | Fair | 1980 | 52.4 m | 6,153 |
| LOWER DEER CREEK | Montana | Good | 1980 | 21.8 m | 6,153 |
| BBWA CANAL 040 | Montana | Fair | 1971 | 20.4 m | 6,121 |
| RR - MRL | Montana | Fair | 1993 | 119.1 m | 6,113 |
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.