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 |
|---|---|---|---|---|---|
| OLIVER COULEE | Montana | Good | 2004 | 7.5 m | 520 |
| ROARING LION CREEK | Montana | Fair | 1972 | 6.7 m | 519 |
| DRY FORK MARIAS RIVER | Montana | Good | 2006 | 29.7 m | 518 |
| MATCHETT COULEE | Montana | Good | 2006 | 9.1 m | 518 |
| S FK DRY FK MARIAS RIVER | Montana | Good | 2013 | 11.8 m | 518 |
| JENSEN COULEE | Montana | Good | 2006 | 28.0 m | 518 |
| COTTONWOOD CREEK | Montana | Fair | 1960 | 10.3 m | 518 |
| HAY CREEK | Montana | Fair | 1932 | 17.8 m | 516 |
| RED MEADOW CREEK 037 | Montana | Fair | 1980 | 31.4 m | 516 |
| O`FALLON CREEK | Montana | Fair | 1971 | 57.0 m | 516 |
| HAY CREEK 054 | Montana | Good | 1979 | 21.0 m | 516 |
| LITTLE BIGHORN RIVER | Montana | Fair | 1962 | 56.4 m | 514 |
| MARIAS RIVER 001 | Montana | Fair | 1936 | 166.1 m | 511 |
| PONDERA CANAL 081 | Montana | Fair | 1931 | 20.1 m | 511 |
| DRY FORK MARIAS 080 | Montana | Fair | 1931 | 34.7 m | 511 |
| REDSTONE CREEK | Montana | Good | 2011 | 30.8 m | 511 |
| BIG MUDDY CREEK | Montana | Fair | 2012 | 45.5 m | 511 |
| SEP I 15 010 | Montana | Fair | 1976 | 90.1 m | 511 |
| KENNEDY CREEK | Montana | Good | 1976 | 43.9 m | 510 |
| SILVER CREEK 144 | Montana | Good | 2005 | 7.3 m | 510 |
| BIG DRY CREEK | Montana | Fair | 1992 | 37.6 m | 509 |
| DAISY DEAN CREEK | Montana | Fair | 1933 | 17.4 m | 508 |
| N FORK MUSSELSHELL R | Montana | Fair | 2014 | 39.3 m | 508 |
| ARMELLS CREEK 077 | Montana | Fair | 1981 | 22.1 m | 508 |
| ROSEBUD CREEK | Montana | Good | 1989 | 36.0 m | 507 |
| MACKS CREEK 038 | Montana | Poor | 1929 | 12.0 m | 507 |
| O`FALLON CREEK 043 | Montana | Fair | 1948 | 68.3 m | 507 |
| POWDER RIVER 040 | Montana | Fair | 1945 | 193.8 m | 507 |
| CONN`S COULEE 021 | Montana | Fair | 1930 | 17.6 m | 507 |
| RR 046 | Montana | Fair | 1934 | 45.0 m | 507 |
| DRAINAGE 022 | Montana | Fair | 1930 | 11.9 m | 507 |
| WILLIAMS COULEE 007 | Montana | Poor | 1930 | 23.6 m | 507 |
| MILES CREEK 037 | Montana | Poor | 1929 | 17.8 m | 507 |
| COTTONWOOD CREEK 083 | Montana | Poor | 1928 | 52.6 m | 507 |
| INDIAN SERVICE CANAL | Montana | Fair | 1962 | 20.4 m | 503 |
| LITTLE PRICKLY PEAR CR | Montana | Fair | 1949 | 17.7 m | 501 |
| CANYON CREEK | Montana | Fair | 1949 | 18.0 m | 501 |
| CANYON CREEK | Montana | Fair | 1949 | 19.2 m | 501 |
| FOUR HORNS CANAL | Montana | Good | 1972 | 14.5 m | 500 |
| WHITETAIL CREEK | Montana | Fair | 1972 | 14.4 m | 500 |
| CUT BANK CREEK | Montana | Fair | 1965 | 50.3 m | 500 |
| DORIS CREEK | Montana | Fair | 1976 | 6.2 m | 500 |
| SPRING CREEK | Montana | Fair | 1981 | 14.0 m | 499 |
| SANDSTONE CREEK | Montana | Fair | 1971 | 43.5 m | 498 |
| GALLATIN RIVER | Montana | Fair | 1975 | 56.1 m | 496 |
| INT POWER I 15 | Montana | Fair | 1972 | 105.9 m | 493 |
| MUDDY CREEK | Montana | Good | 1970 | 28.3 m | 493 |
| HELENA VALLEY CANAL 114 | Montana | Good | 1958 | 7.6 m | 491 |
| NINEMILE CREEK 030 | Montana | Fair | 1975 | 26.5 m | 486 |
| FOUR MILE CREEK | Montana | Fair | 1937 | 7.9 m | 486 |
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.