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 |
|---|---|---|---|---|---|
| SEP ACCESS RD-DRAINAGE | Montana | Fair | 1971 | 18.3 m | 2,232 |
| COTTONWOOD CREEK | Montana | Fair | 1971 | 47.7 m | 2,232 |
| SEP ACCESS RD-DRAINAGE | Montana | Fair | 1971 | 18.3 m | 2,232 |
| RR | Montana | Poor | 1956 | 110.3 m | 2,225 |
| RR | Montana | Fair | 1956 | 63.7 m | 2,225 |
| DODSON SOUTH CANAL | Montana | Fair | 2000 | 28.3 m | 2,221 |
| YELLOWSTONE RIVER | Montana | Fair | 1978 | 356.4 m | 2,219 |
| YELLOWSTONE RIVER | Montana | Fair | 1978 | 356.4 m | 2,219 |
| RR | Montana | Fair | 1977 | 70.7 m | 2,219 |
| INT HARDY-HARDY CREEK | Montana | Good | 1968 | 64.3 m | 2,218 |
| INT HARDY-HARDY CREEK | Montana | Good | 1968 | 64.3 m | 2,218 |
| SEP TINTINGER | Montana | Fair | 1961 | 40.8 m | 2,218 |
| SEP TINTINGER | Montana | Fair | 1978 | 38.1 m | 2,218 |
| SEP OLD US 91 | Montana | Fair | 1961 | 25.6 m | 2,218 |
| SEP OLD US 91 | Montana | Good | 1978 | 30.2 m | 2,218 |
| BEAR CREEK | Montana | Good | 2019 | 7.6 m | 2,211 |
| SANDSTONE CREEK | Montana | Poor | 1941 | 19.7 m | 2,209 |
| RR 015 | Montana | Fair | 1955 | 49.5 m | 2,202 |
| MISSOURI RIVER-LOCAL | Montana | Fair | 1971 | 249.6 m | 2,201 |
| MISSOURI RIVER-LOCAL | Montana | Fair | 1971 | 241.3 m | 2,201 |
| RR-MISSOURI RIVER | Montana | Fair | 1968 | 225.7 m | 2,201 |
| INT CRAIG | Montana | Good | 1967 | 37.9 m | 2,201 |
| RR | Montana | Good | 1967 | 111.5 m | 2,201 |
| RR | Montana | Good | 1967 | 111.5 m | 2,201 |
| SEP MISSOURI RVR-CO RD | Montana | Fair | 1967 | 234.9 m | 2,201 |
| SEP MISSOURI RVR-CO RD | Montana | Fair | 1967 | 234.9 m | 2,201 |
| STICKNEY CREEK | Montana | Fair | 1968 | 28.3 m | 2,201 |
| RR-MISSOURI RIVER | Montana | Fair | 1968 | 225.2 m | 2,201 |
| INT CRAIG | Montana | Good | 1967 | 37.9 m | 2,201 |
| STICKNEY CREEK | Montana | Good | 1968 | 28.3 m | 2,201 |
| MISSOURI RVR-RR-LOCAL | Montana | Fair | 1971 | 392.5 m | 2,201 |
| INT DEARBORN-MISSOURI R | Montana | Fair | 1971 | 259.0 m | 2,201 |
| INT DEARBORN-MISSOURI R | Montana | Fair | 1971 | 256.3 m | 2,201 |
| MISSOURI RVR-RR-LOCAL | Montana | Fair | 1971 | 380.9 m | 2,201 |
| MISSOURI RIVER | Montana | Fair | 1971 | 162.4 m | 2,201 |
| MISSOURI RIVER | Montana | Fair | 1971 | 162.4 m | 2,201 |
| PUMPKIN CREEK | Montana | Good | 2012 | 9.9 m | 2,197 |
| JEFFERSON RIVER | Montana | Fair | 1992 | 140.9 m | 2,195 |
| INT WYOLA-S 457 | Montana | Fair | 1985 | 39.9 m | 2,193 |
| INT WYOLA-S 457 | Montana | Fair | 1985 | 39.9 m | 2,193 |
| INT ABERDEEN | Montana | Fair | 1985 | 24.1 m | 2,193 |
| INT ABERDEEN | Montana | Fair | 1985 | 23.8 m | 2,193 |
| O`BRIEN CREEK 114 | Montana | Good | 1998 | 7.6 m | 2,192 |
| INT S CASCADE | Montana | Good | 1961 | 42.4 m | 2,190 |
| INT S CASCADE | Montana | Good | 1978 | 40.8 m | 2,190 |
| INT GRIFFITH CREEK | Montana | Fair | 1979 | 38.3 m | 2,188 |
| INT HODGES CO RD 159 | Montana | Fair | 1977 | 37.8 m | 2,188 |
| INT GRIFFITH CREEK | Montana | Fair | 1979 | 38.3 m | 2,188 |
| INT HODGES CO RD 159 | Montana | Fair | 1964 | 37.8 m | 2,188 |
| SEP COUNTY ROAD | Montana | Fair | 1977 | 23.8 m | 2,188 |
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.