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 |
|---|---|---|---|---|---|
| DRY CREEK | Montana | Good | 2012 | 12.2 m | 204 |
| DRY CREEK | Montana | Fair | 1929 | 8.2 m | 204 |
| FT. PECK SPILLWAY | Montana | Fair | 1937 | 310.2 m | 203 |
| TONGUE RIVER 054 | Montana | Fair | 1976 | 93.2 m | 203 |
| HANGING WOMAN CREEK 056 | Montana | Fair | 1986 | 23.8 m | 203 |
| TEN MILE CREEK 009 | Montana | Fair | 1977 | 9.1 m | 202 |
| LOGAN CREEK 175 | Montana | Fair | 1981 | 39.6 m | 202 |
| STILLWATER RIVER | Montana | Good | 2021 | 47.6 m | 201 |
| WILLOW CREEK 160 | Montana | Good | 2015 | 18.5 m | 200 |
| ROTTEN GRASS CREEK | Montana | Fair | 1980 | 20.6 m | 200 |
| ROTTEN GRASS CREEK | Montana | Fair | 1980 | 19.1 m | 200 |
| ROTTEN GRASS CREEK | Montana | Fair | 1986 | 23.7 m | 200 |
| BIG HORN CANAL | Montana | Good | 1986 | 14.4 m | 200 |
| PEOPLES CREEK | Montana | Poor | 1976 | 52.1 m | 200 |
| PEOPLES CREEK | Montana | Fair | 1976 | 44.8 m | 200 |
| POPLAR RIVER | Montana | Good | 2000 | 67.5 m | 200 |
| BOX ELDER CREEK | Montana | Good | 2012 | 8.0 m | 200 |
| MID FK PORCUPINE CREEK | Montana | Good | 2018 | 49.8 m | 200 |
| ROCK CREEK | Montana | Good | 2023 | 7.9 m | 200 |
| TIGER CREEK | Montana | Good | 1965 | 9.4 m | 200 |
| FELIX CREEK | Montana | Good | 1997 | 6.1 m | 200 |
| SLEEPING CHILD CREEK 075 | Montana | Fair | 1972 | 10.1 m | 200 |
| MCDONALD CREEK | Montana | Good | 2024 | 67.0 m | 200 |
| ALKALI CREEK | Montana | Fair | 1935 | 23.5 m | 200 |
| PUMPKIN CREEK | Montana | Fair | 1959 | 42.4 m | 199 |
| SAWMILL CREEK | Montana | Fair | 1940 | 15.5 m | 199 |
| MUDDY CR DIVERSION 045 | Montana | Fair | 1970 | 25.6 m | 198 |
| HORSE CREEK | Montana | Fair | 1950 | 30.9 m | 198 |
| SHEEP CREEK | Montana | Fair | 1956 | 15.7 m | 197 |
| W FK POPLAR RV OVERFLOW | Montana | Fair | 1948 | 23.2 m | 194 |
| DRAINAGE | Montana | Good | 2023 | 7.3 m | 194 |
| W FORK POPLAR RIVER | Montana | Fair | 1948 | 61.2 m | 194 |
| Drainage | Montana | Good | 2023 | 20.6 m | 194 |
| MARTIN COULEE | Montana | Fair | 1948 | 23.2 m | 194 |
| W FK POPLAR RV OVERFLOW | Montana | Fair | 1948 | 15.5 m | 194 |
| IRRIGATION DITCH 006 | Montana | Fair | 1955 | 9.8 m | 194 |
| BIG HOLE OVERFLOW 055 | Montana | Fair | 1973 | 30.5 m | 191 |
| BIG HOLE RIVER 008 | Montana | Fair | 2001 | 67.0 m | 191 |
| PIPE CREEK 027 | Montana | Good | 1950 | 12.1 m | 190 |
| LITTLE PORCUPINE CR 014 | Montana | Fair | 1978 | 28.0 m | 190 |
| FRENCHTOWN IRR CANAL 094 | Montana | Fair | 1960 | 7.3 m | 190 |
| MEDICINE LODGE CREEK | Montana | Fair | 1963 | 21.6 m | 189 |
| DRAINAGE | Montana | Fair | 2003 | 44.8 m | 188 |
| BEAVER CREEK OVERFLOW | Montana | Fair | 2003 | 44.8 m | 188 |
| DRAINAGE | Montana | Fair | 1936 | 35.1 m | 188 |
| DRAINAGE | Montana | Fair | 1936 | 11.9 m | 188 |
| DRAINAGE | Montana | Fair | 2003 | 44.8 m | 188 |
| INT LEDGER-I 15 | Montana | Fair | 1972 | 89.0 m | 187 |
| DRAINAGE | Montana | Fair | 1954 | 7.9 m | 187 |
| E FORK ROCK CREEK 030 | Montana | Good | 1950 | 9.4 m | 186 |
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.