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 |
|---|---|---|---|---|---|
| BEAVERHEAD RIVER | Montana | Good | 1973 | 43.6 m | 1,958 |
| BEAVERHEAD RIVER | Montana | Good | 1973 | 43.6 m | 1,958 |
| MILL DITCH | Montana | Fair | 1958 | 14.9 m | 1,955 |
| FIFTEEN MILE CREEK | Montana | Fair | 1948 | 33.8 m | 1,943 |
| ROSE CREEK | Montana | Good | 2013 | 12.8 m | 1,942 |
| ROES CREEK | Montana | Fair | 1965 | 11.2 m | 1,942 |
| BARING CREEK | Montana | Fair | 1932 | 21.9 m | 1,942 |
| DRY RAVINE | Montana | Fair | 1934 | 18.9 m | 1,942 |
| HAYSTACK CREEK | Montana | Fair | 1935 | 6.1 m | 1,942 |
| PAINTED ROBE CREEK | Montana | Good | 1993 | 31.1 m | 1,940 |
| RR | Montana | Fair | 1969 | 152.9 m | 1,939 |
| O`FALLON CREEK | Montana | Good | 1969 | 84.1 m | 1,939 |
| RR | Montana | Fair | 1969 | 134.1 m | 1,939 |
| RR | Montana | Fair | 1977 | 69.2 m | 1,939 |
| O`FALLON CREEK | Montana | Fair | 1969 | 84.1 m | 1,939 |
| TWO MEDICINE RIVER | Montana | Fair | 2012 | 463.6 m | 1,939 |
| JOCKO RIVER-RR | Montana | Fair | 1998 | 150.4 m | 1,938 |
| BLACKTAIL DEER CREEK 131 | Montana | Good | 2010 | 14.0 m | 1,937 |
| CLARKS FK YELLOWSTONE | Montana | Fair | 1971 | 88.1 m | 1,932 |
| BRIDGER CREEK | Montana | Fair | 1971 | 26.5 m | 1,932 |
| TEN MILE CREEK 071 | Montana | Poor | 1962 | 15.5 m | 1,929 |
| MIDVALE CREEK | Montana | Fair | 2001 | 42.5 m | 1,928 |
| BOULDER RIVER | Montana | Fair | 1980 | 51.9 m | 1,928 |
| BOULDER RIVER | Montana | Fair | 1980 | 53.6 m | 1,928 |
| BOULDER RVR-ACCESS RD | Montana | Fair | 1980 | 60.7 m | 1,928 |
| BOULDER RVR-ACCESS RD | Montana | Fair | 1980 | 61.2 m | 1,928 |
| BOULDER RIVER | Montana | Fair | 1980 | 56.1 m | 1,928 |
| BOULDER RIVER | Montana | Fair | 1979 | 57.0 m | 1,928 |
| SEP DEPOT HILL ROAD | Montana | Fair | 1973 | 25.3 m | 1,928 |
| SEP DEPOT HILL ROAD | Montana | Fair | 1973 | 25.3 m | 1,928 |
| INT APEX-BIRCH CR RD | Montana | Fair | 1973 | 51.8 m | 1,926 |
| INT APEX-BIRCH CR RD | Montana | Fair | 1973 | 51.8 m | 1,926 |
| SEP COUNTY RD 203 | Montana | Fair | 1973 | 36.3 m | 1,926 |
| SEP COUNTY RD 203 | Montana | Good | 1973 | 36.3 m | 1,926 |
| INT ROCK CR-BROWNES BR R | Montana | Fair | 1973 | 40.5 m | 1,926 |
| INT ROCK CR-BROWNES BR R | Montana | Fair | 1973 | 40.5 m | 1,926 |
| BIG HOLE RIVER | Montana | Fair | 1973 | 135.6 m | 1,926 |
| BIG HOLE RIVER | Montana | Fair | 1973 | 138.0 m | 1,926 |
| RR-HWY 91- DRAINAGE | Montana | Fair | 1974 | 174.0 m | 1,926 |
| RR-HWY 91-DRAINAGE | Montana | Fair | 1974 | 164.0 m | 1,926 |
| SEP MELROSE RD | Montana | Fair | 1973 | 23.2 m | 1,926 |
| SEP MELROSE RD | Montana | Fair | 1973 | 23.2 m | 1,926 |
| INT E HARDIN I 90 | Montana | Fair | 1971 | 81.0 m | 1,916 |
| USBR MAIN CANAL 054 | Montana | Good | 2013 | 20.0 m | 1,907 |
| SPRING CREEK 095 | Montana | Fair | 1994 | 18.9 m | 1,903 |
| WISCONSIN CREEK | Montana | Fair | 1999 | 12.9 m | 1,901 |
| BUTCHER CREEK | Montana | Good | 2010 | 18.3 m | 1,898 |
| ALDER CREEK | Montana | Fair | 1940 | 11.6 m | 1,897 |
| RAMSHORN CREEK | Montana | Fair | 1940 | 11.8 m | 1,897 |
| HELENA VALLEY CANAL 086 | Montana | Good | 2000 | 14.4 m | 1,893 |
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.