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 |
|---|---|---|---|---|---|
| SANDSTONE CREEK | Montana | Fair | 1964 | 40.4 m | 119 |
| RED ROCK RIVER | Montana | Fair | 2019 | 11.5 m | 118 |
| ARROW CREEK | Montana | Good | 2010 | 23.8 m | 118 |
| RED ROCK RIVER 007 | Montana | Fair | 1982 | 13.7 m | 118 |
| FALLS CREEK 049 | Montana | Fair | 1960 | 15.8 m | 118 |
| DEARBORN RIVER 048 | Montana | Good | 1982 | 15.8 m | 118 |
| BIG MUDDY CREEK 032 | Montana | Fair | 1970 | 18.9 m | 117 |
| OTTER CREEK 037 | Montana | Fair | 1987 | 9.1 m | 117 |
| DRAINAGE 086 | Montana | Good | 2019 | 12.8 m | 115 |
| JUDITH RIVER | Montana | Fair | 1970 | 69.5 m | 114 |
| USBR MAIN CANAL 010 | Montana | Fair | 1983 | 15.2 m | 114 |
| SUN RIVER | Montana | Fair | 1967 | 65.5 m | 113 |
| BLACKFOT RIVER 095 | Montana | Good | 2024 | 45.7 m | 112 |
| ELBOW CREEK 035 | Montana | Fair | 1979 | 18.9 m | 111 |
| FINLEY CREEK 013 | Montana | Good | 2009 | 18.6 m | 111 |
| SEP I 90 003 | Montana | Fair | 1964 | 75.0 m | 111 |
| SILVERBOW CREEK 012 | Montana | Fair | 1969 | 23.2 m | 111 |
| HELENA VALLEY CANAL 088 | Montana | Fair | 1957 | 13.4 m | 111 |
| PEOPLES CREEK | Montana | Fair | 1957 | 17.7 m | 110 |
| JEFFERSON RIVER | Montana | Fair | 2003 | 68.5 m | 110 |
| JEFFERSON RIVER OVERFLOW | Montana | Fair | 1977 | 11.0 m | 110 |
| LAKE CREEK 060 | Montana | Fair | 1965 | 28.2 m | 109 |
| PASS CREEK 021 | Montana | Fair | 1979 | 18.9 m | 109 |
| TENMILE CREEK | Montana | Good | 2023 | 12.9 m | 107 |
| TEN MILE CREEK 106 | Montana | Fair | 1962 | 10.4 m | 107 |
| LITTLE POWDER RIVER 028 | Montana | Fair | 1947 | 76.1 m | 107 |
| WILLOW CREEK | Montana | Good | 1971 | 34.7 m | 106 |
| THIRTY MILE CREEK | Montana | Fair | 1941 | 29.6 m | 106 |
| WEST FORK WILLOW CREEK | Montana | Fair | 1967 | 21.9 m | 106 |
| TRAIL CREEK | Montana | Good | 1974 | 44.2 m | 106 |
| MINERS COULEE | Montana | Good | 1974 | 34.1 m | 106 |
| DENWOODY CREEK | Montana | Fair | 1950 | 11.6 m | 104 |
| YELLOWSTONE RIVER 077 | Montana | Fair | 1980 | 143.8 m | 104 |
| HORSE CREEK | Montana | Fair | 1950 | 23.3 m | 104 |
| MILL CREEK 045 | Montana | Good | 1972 | 23.8 m | 104 |
| BAKER CREEK 080 | Montana | Fair | 1992 | 9.1 m | 104 |
| CUTBANK CREEK 035 | Montana | Good | 2017 | 26.8 m | 102 |
| SILVER BOW CREEK 014 | Montana | Fair | 2006 | 24.4 m | 102 |
| SMOKE CREEK | Montana | Poor | 1954 | 7.9 m | 101 |
| YELLOWSTONE RIVER 070 | Montana | Fair | 2011 | 62.3 m | 101 |
| SACAGAWEA RIVER | Montana | Good | 2015 | 24.1 m | 100 |
| SEP I 94 016 | Montana | Fair | 1976 | 85.9 m | 100 |
| FRED BURR CREEK 039 | Montana | Good | 1972 | 9.3 m | 100 |
| INT BIGHORN I 94 002 | Montana | Fair | 1963 | 78.3 m | 100 |
| MUGGINS CREEK 004 | Montana | Fair | 1970 | 7.3 m | 100 |
| INT BALLANTINE-I 90 003 | Montana | Fair | 1972 | 82.9 m | 100 |
| SARPY CREEK 033 | Montana | Fair | 1981 | 7.9 m | 100 |
| E FORK SARPY CREEK 028 | Montana | Fair | 1971 | 12.8 m | 100 |
| LITTLE BIGHORN RIVER 069 | Montana | Fair | 1958 | 47.2 m | 100 |
| OWL CREEK 085 | Montana | Fair | 2015 | 17.4 m | 100 |
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.