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 |
|---|---|---|---|---|---|
| E FK FISHTRAP | Montana | Poor | 1973 | 7.5 m | 20 |
| NO DATA ENTERED | Montana | Good | 1994 | 12.5 m | 20 |
| NO DATA ENTERED | Montana | Good | 1994 | 11.9 m | 20 |
| RUBY CR | Montana | Poor | 1968 | 7.3 m | 20 |
| RUBY CR | Montana | Poor | 1952 | 7.3 m | 20 |
| BLODGETT CR | Montana | Fair | 1967 | 12.2 m | 20 |
| CAMP CR | Montana | Fair | 1979 | 10.2 m | 20 |
| BOULDER CREEK | Montana | Good | 1979 | 19.8 m | 20 |
| W F BITTERROOT | Montana | Fair | 1957 | 49.7 m | 20 |
| SWAN RIVER | Montana | Fair | 1956 | 70.4 m | 20 |
| SKYLAND CREEK | Montana | Fair | 1963 | 9.1 m | 20 |
| RED MEADOW CREEK | Montana | Fair | 1960 | 8.5 m | 20 |
| RED MEADOW CREEK | Montana | Fair | 1966 | 10.4 m | 20 |
| GOOD CREEK | Montana | Poor | 1962 | 10.0 m | 20 |
| GRIFFIN CREEK | Montana | Good | 1980 | 16.8 m | 20 |
| CROW CREEK | Montana | Fair | 1983 | 7.3 m | 20 |
| TEN MILE CREEK | Montana | Poor | 1957 | 7.3 m | 20 |
| POORMAN CREEK | Montana | Fair | 1979 | 7.2 m | 20 |
| POORMAN CREEK | Montana | Good | 2013 | 8.8 m | 20 |
| OBRIEN CR | Montana | Good | 1979 | 8.7 m | 20 |
| OBRIEN CREEK | Montana | Good | 1966 | 12.5 m | 20 |
| S FK CALLAHAN CR | Montana | Fair | 1976 | 17.8 m | 20 |
| NO FK CALLAHAN CR | Montana | Good | 1978 | 24.7 m | 20 |
| FISHER RIVER | Montana | Fair | 1986 | 16.8 m | 20 |
| N BRANCH MARTEN CREEK | Montana | Fair | 1967 | 8.1 m | 20 |
| BEAVER CREEK | Montana | Fair | 1965 | 10.0 m | 20 |
| EAST FK BULL RIVER | Montana | Fair | 1963 | 7.5 m | 20 |
| BIG BEAVER | Montana | Good | 1976 | 23.3 m | 20 |
| MILLER CR | Montana | Fair | 1956 | 8.5 m | 20 |
| BELT CREEK | Montana | Fair | 1960 | 45.5 m | 20 |
| ARMELLS CREEK | Montana | Good | 2017 | 23.8 m | 20 |
| BEAR CREEK | Montana | Good | 1999 | 10.2 m | 20 |
| BEAR CREEK | Montana | Good | 1999 | 9.1 m | 20 |
| BENCH SOUTH CANAL 066 | Montana | Fair | 1950 | 9.8 m | 19 |
| LITTLE BLACKFOOT R 027 | Montana | Poor | 1914 | 18.6 m | 19 |
| DRAINAGE 053 | Montana | Fair | 1989 | 9.1 m | 19 |
| MUDDY CREEK 115 | Montana | Good | 1982 | 9.1 m | 19 |
| LARB CREEK 106 | Montana | Fair | 1987 | 22.6 m | 19 |
| PENNEL CREEK 036 | Montana | Fair | 1982 | 15.2 m | 18 |
| JUDITH RIVER 011 | Montana | Good | 2006 | 32.0 m | 18 |
| GREENFIELD CANAL 053 | Montana | Good | 1938 | 16.2 m | 18 |
| GREENFIELD CANAL 052 | Montana | Fair | 1966 | 16.9 m | 18 |
| PONDERA COULEE | Montana | Fair | 1984 | 25.0 m | 18 |
| USBR MAIN CANAL 091 | Montana | Fair | 2001 | 22.3 m | 17 |
| BIG PORCUPINE CREEK 011 | Montana | Fair | 2006 | 19.7 m | 17 |
| BIG MUDDY CREEK 016 | Montana | Good | 2004 | 42.5 m | 17 |
| IRRIGATION DITCH 005 | Montana | Poor | 1979 | 8.8 m | 17 |
| IRRIGATION DITCH 020 | Montana | Fair | 1978 | 16.2 m | 17 |
| TETON RIVER | Montana | Fair | 1944 | 24.4 m | 16 |
| ROSS FORK CREEK 018 | Montana | Poor | 1925 | 21.6 m | 16 |
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.