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 |
|---|---|---|---|---|---|
| USRS MAIN CANAL | Montana | Fair | 1953 | 22.9 m | 351 |
| ROTTEN GRASS CREEK | Montana | Fair | 1970 | 20.5 m | 350 |
| TWO BEAR CREEK 110 | Montana | Good | 2010 | 12.2 m | 349 |
| SLEEPING CHILD CREEK 073 | Montana | Good | 1972 | 8.2 m | 349 |
| COOPER CREEK | Montana | Fair | 2012 | 45.7 m | 347 |
| FLAGSTAFF CREEK | Montana | Fair | 2012 | 35.7 m | 347 |
| WHETSTONE CREEK | Montana | Good | 2012 | 39.1 m | 347 |
| COFFEE CREEK | Montana | Fair | 1952 | 11.6 m | 347 |
| TEN MILE CREEK | Montana | Fair | 1974 | 70.1 m | 346 |
| ROCK GUT | Montana | Poor | 1974 | 82.0 m | 346 |
| SUTTON CREEK | Montana | Fair | 1974 | 201.7 m | 346 |
| SPRING CREEK 035 | Montana | Fair | 1936 | 7.6 m | 344 |
| BRIDGER CREEK 040 | Montana | Fair | 1931 | 29.3 m | 344 |
| LOWER DEER CREEK 006 | Montana | Fair | 1928 | 12.2 m | 344 |
| USBR MAIN CANAL 025 | Montana | Fair | 2003 | 27.4 m | 341 |
| FIRST HAY CREEK 024 | Montana | Fair | 1997 | 18.3 m | 341 |
| USBR MAIN CANAL 073 | Montana | Good | 2008 | 11.0 m | 341 |
| STILLWATER RIVER 084 | Montana | Fair | 1980 | 75.3 m | 339 |
| BIG CHERRY CREEK 119 | Montana | Fair | 1977 | 30.5 m | 334 |
| DODSON SOUTH CANAL | Montana | Fair | 1966 | 23.2 m | 332 |
| CANAL 058 | Montana | Poor | 1941 | 15.3 m | 331 |
| STICKNEY CREEK 057 | Montana | Fair | 1968 | 28.0 m | 329 |
| WEGNER CREEK 055 | Montana | Fair | 1934 | 12.5 m | 329 |
| E FORK BIG SPRING CREEK | Montana | Fair | 1966 | 23.2 m | 328 |
| BIG SPRING CREEK | Montana | Good | 1996 | 24.3 m | 328 |
| JUDITH RIVER | Montana | Good | 1961 | 19.8 m | 324 |
| LIBBY CREEK | Montana | Fair | 1972 | 31.1 m | 324 |
| EAGLE CREEK | Montana | Fair | 2011 | 58.2 m | 323 |
| DRAINAGE | Montana | Good | 2011 | 6.1 m | 323 |
| LOWER SEVEN MILE CREEK | Montana | Fair | 1952 | 7.6 m | 321 |
| CEDAR CREEK 051 | Montana | Good | 2005 | 19.8 m | 319 |
| MADISON RIVER 032 | Montana | Fair | 1990 | 96.9 m | 318 |
| BOX ELDER CREEK | Montana | Fair | 1957 | 56.0 m | 316 |
| PRICKLY PEAR CREEK 083 | Montana | Good | 1982 | 17.4 m | 316 |
| NOVAK CREEK 005 | Montana | Fair | 1931 | 13.4 m | 316 |
| MISSOURI RIVER-RR 069 | Montana | Poor | 1931 | 167.6 m | 316 |
| PREWETT CREEK 070 | Montana | Fair | 1931 | 24.4 m | 316 |
| E FORK BITTERROOT R 009 | Montana | Fair | 1947 | 25.6 m | 309 |
| E FORK BITTERROOT R 107 | Montana | Good | 1991 | 23.8 m | 309 |
| MAIN CREEK | Montana | Poor | 1939 | 29.6 m | 309 |
| DAHL CREEK | Montana | Poor | 1939 | 18.0 m | 309 |
| DRY CREEK | Montana | Fair | 1939 | 8.2 m | 309 |
| NEVADA CREEK | Montana | Fair | 1947 | 12.4 m | 308 |
| S FORK MUSSELSHELL RIVER | Montana | Fair | 2010 | 43.8 m | 307 |
| DRAINAGE | Montana | Poor | 1959 | 17.4 m | 307 |
| DRAINAGE | Montana | Fair | 1958 | 8.8 m | 307 |
| MARTINSDALE SUPPLY CANAL | Montana | Fair | 2010 | 19.0 m | 307 |
| JACK CREEK 029 | Montana | Good | 2011 | 8.4 m | 301 |
| JACK CREEK 030 | Montana | Good | 2011 | 8.4 m | 301 |
| JACK CREEK 028 | Montana | Poor | 1952 | 8.2 m | 301 |
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.