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 |
|---|---|---|---|---|---|
| TONGUE RIVER 041 | Montana | Fair | 1988 | 59.6 m | 36 |
| ROSS FORK CREEK 026 | Montana | Fair | 1987 | 9.8 m | 36 |
| BULL MTN RR 023 | Montana | Good | 2009 | 68.3 m | 36 |
| N FK BIG HOLE RIVER 069 | Montana | Fair | 2024 | 16.8 m | 35 |
| W FK MADISON RIVER | Montana | Fair | 1957 | 9.9 m | 35 |
| SWAMP CREEK 070 | Montana | Fair | 1975 | 9.8 m | 35 |
| IRRIGATION CANAL 068 | Montana | Fair | 1994 | 8.8 m | 35 |
| JUDITH RIVER 015 | Montana | Good | 2014 | 28.0 m | 35 |
| OTTER CREEK | Montana | Fair | 1999 | 37.6 m | 35 |
| COPPER CREEK | Montana | Fair | 1962 | 9.9 m | 34 |
| TULLOCK CREEK 029 | Montana | Fair | 2006 | 20.1 m | 34 |
| TULLOCK CREEK 030 | Montana | Good | 1985 | 21.9 m | 34 |
| ELK CREEK 021 | Montana | Good | 2002 | 18.0 m | 34 |
| MUSSELSHELL RIVER 015 | Montana | Fair | 1916 | 43.6 m | 34 |
| WEST BURNT CREEK 019 | Montana | Fair | 1970 | 6.4 m | 34 |
| EAST FK ROBERTS CR 006 | Montana | Fair | 1962 | 11.0 m | 34 |
| BIG SANDY CREEK 021 | Montana | Good | 2016 | 29.8 m | 33 |
| PUMPKIN CREEK 043 | Montana | Fair | 1968 | 9.2 m | 33 |
| DODSON SOUTH CANAL 116 | Montana | Poor | 1938 | 20.7 m | 33 |
| BOX ELDER CREEK | Montana | Fair | 2000 | 43.2 m | 33 |
| NORTH WILLOW CREEK | Montana | Good | 1975 | 36.0 m | 33 |
| CABIN CREEK 057 | Montana | Poor | 1980 | 25.9 m | 32 |
| PENNEL CREEK 013 | Montana | Good | 2009 | 6.3 m | 32 |
| O`FALLON CREEK 017 | Montana | Good | 2003 | 61.6 m | 32 |
| WHITETAIL CREEK | Montana | Fair | 2010 | 31.0 m | 32 |
| CORRAL CREEK | Montana | Fair | 2000 | 34.5 m | 32 |
| FORK OF BEAVER CREEK | Montana | Good | 2016 | 32.3 m | 31 |
| BIRCH CREEK | Montana | Good | 2011 | 12.2 m | 31 |
| NO NAME DITCH 074 | Montana | Good | 2023 | 10.6 m | 31 |
| BLACKFOOT RIVER | Montana | Good | 2011 | 50.1 m | 31 |
| ROCK CREEK 029 | Montana | Fair | 1979 | 42.4 m | 31 |
| ASH CREEK 017 | Montana | Fair | 1983 | 14.6 m | 31 |
| COTTONWOOD CREEK 022 | Montana | Good | 2013 | 22.4 m | 31 |
| BEAVER CREEK 138 | Montana | Good | 2013 | 15.8 m | 31 |
| DEARBORN RIVER 011 | Montana | Fair | 1896 | 76.5 m | 31 |
| DRY FK MARIAS RIVER 073 | Montana | Good | 1988 | 30.2 m | 31 |
| ROANWOOD CREEK | Montana | Fair | 1957 | 8.7 m | 31 |
| O`FALLON CREEK | Montana | Good | 1990 | 57.8 m | 31 |
| RED ROCK RIVER 037 | Montana | Good | 2018 | 16.8 m | 30 |
| NORTH FORK WHITETAIL CRK | Montana | Good | 1979 | 14.3 m | 30 |
| BADGER CREEK | Montana | Fair | 1979 | 41.2 m | 30 |
| NORTH FORK JOCKO RIVER | Montana | Good | 2003 | 18.4 m | 30 |
| WEST MAGPIE CREEK | Montana | Good | 2003 | 12.3 m | 30 |
| REVIAS CREEK | Montana | Good | 2014 | 12.3 m | 30 |
| REVAIS CREEK | Montana | Fair | 2014 | 20.5 m | 30 |
| REVIAS CREEK | Montana | Good | 2002 | 15.1 m | 30 |
| MISSION DAM CREEK | Montana | Good | 2010 | 17.3 m | 30 |
| W FK MADISON RIVER | Montana | Fair | 1970 | 15.7 m | 30 |
| W F BITTERROOT COAL | Montana | Fair | 1960 | 12.2 m | 30 |
| WATCHTOWER CR | Montana | Good | 1990 | 8.5 m | 30 |
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.