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 |
|---|---|---|---|---|---|
| SOUTH FORK SPRING CREEK | Montana | Fair | 1979 | 8.4 m | 50 |
| WARM SPRINGS CR | Montana | Good | 1979 | 16.0 m | 50 |
| RACETRACK CR | Montana | Fair | 1981 | 10.0 m | 50 |
| BOULDER RIVER | Montana | Fair | 1957 | 21.8 m | 50 |
| BISON CREEK | Montana | Fair | 1986 | 12.4 m | 50 |
| MIDDLE FORK ROCK CR | Montana | Fair | 1956 | 15.6 m | 50 |
| COPPER CR | Montana | Fair | 1956 | 14.2 m | 50 |
| SPILLWAY | Montana | Fair | 1958 | 34.3 m | 50 |
| WEST FORK ROCK CR | Montana | Fair | 1965 | 15.4 m | 50 |
| BOWLES CR | Montana | Fair | 1971 | 10.0 m | 50 |
| ROSS FORK | Montana | Fair | 1962 | 21.2 m | 50 |
| ROSS FORK | Montana | Poor | 1967 | 12.3 m | 50 |
| SWAMP GUL | Montana | Poor | 1987 | 8.6 m | 50 |
| BOULDER CR | Montana | Poor | 1949 | 94.2 m | 50 |
| BEEFSTRAIGHT CR | Montana | Fair | 1963 | 7.5 m | 50 |
| GERMAN GULCH | Montana | Good | 1966 | 7.5 m | 50 |
| HELLS CANYON CREEK | Montana | Good | 1998 | 7.0 m | 50 |
| SWAN RIVER | Montana | Good | 2012 | 49.8 m | 50 |
| HALL CREEK | Montana | Good | 1997 | 8.5 m | 50 |
| CONDON CREEK | Montana | Fair | 2010 | 14.1 m | 50 |
| JIM CREEK | Montana | Good | 2016 | 20.4 m | 50 |
| CLAYTON CREEK | Montana | Good | 2007 | 7.3 m | 50 |
| RYLE CREEK | Montana | Fair | 2015 | 7.7 m | 50 |
| ALDER CREEK | Montana | Good | 1983 | 13.7 m | 50 |
| GRIFFIN CREEK | Montana | Good | 2001 | 23.3 m | 50 |
| HAND CREEK | Montana | Fair | 2010 | 17.7 m | 50 |
| E. BOULDER RIVER | Montana | Good | 2007 | 17.4 m | 50 |
| TRESPASS CREEK | Montana | Fair | 1970 | 7.3 m | 50 |
| WEST FORK MILL CREEK | Montana | Fair | 1971 | 11.1 m | 50 |
| W.FORK MILL CREEK | Montana | Fair | 1971 | 9.8 m | 50 |
| W.FORK MILL CREEK | Montana | Fair | 1971 | 8.6 m | 50 |
| ROCK CREEK | Montana | Fair | 1987 | 7.6 m | 50 |
| BIG CREEK | Montana | Poor | 1961 | 12.5 m | 50 |
| SHIELDS RIVER | Montana | Good | 1976 | 22.3 m | 50 |
| MILL CREEK | Montana | Poor | 1952 | 8.7 m | 50 |
| CREEK | Montana | Good | 2000 | 25.3 m | 50 |
| MILL CREEK | Montana | Good | 2009 | 18.0 m | 50 |
| DEEP CREEK | Montana | Good | 2009 | 7.0 m | 50 |
| SIX MILE CREEK | Montana | Good | 2014 | 15.2 m | 50 |
| TOM MINER CREEK | Montana | Fair | 1976 | 7.4 m | 50 |
| CEDAR CREEK | Montana | Fair | 1999 | 8.6 m | 50 |
| SHIELDS RIVER | Montana | Good | 2016 | 9.8 m | 50 |
| SHIELDS RIVER | Montana | Fair | 2016 | 10.1 m | 50 |
| MILL CREEK | Montana | Good | 2024 | 19.2 m | 50 |
| WAPITI CREEK | Montana | Poor | 1954 | 8.7 m | 50 |
| STORMCASTLE CREEK | Montana | Fair | 1957 | 10.0 m | 50 |
| HYALITE CREEK | Montana | Fair | 1952 | 12.5 m | 50 |
| STORMCASTLE CREEK | Montana | Fair | 1957 | 9.9 m | 50 |
| STORMCASTLE CREEK | Montana | Fair | 1954 | 8.1 m | 50 |
| STORMCASTLE CREEK | Montana | Fair | 1948 | 9.3 m | 50 |
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.