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 |
|---|---|---|---|---|---|
| LITTLE WOLF CREEK | Montana | Fair | 1978 | 22.0 m | 1,468 |
| DRAINAGE | Montana | Fair | 1978 | 12.4 m | 1,468 |
| MIDDLE FK DEARBORN RIVER | Montana | Good | 1993 | 34.4 m | 1,467 |
| FIVE MILE CREEK 119 | Montana | Good | 1999 | 24.4 m | 1,465 |
| ROCK CREEK | Montana | Fair | 1984 | 24.1 m | 1,457 |
| SHIELDS RIVER | Montana | Fair | 1984 | 51.5 m | 1,457 |
| KAY CREEK | Montana | Fair | 1984 | 11.0 m | 1,457 |
| WILLOW CREEK | Montana | Good | 1984 | 11.0 m | 1,457 |
| BIGHORN RIVER | Montana | Fair | 2007 | 180.0 m | 1,455 |
| FISHER RIVER | Montana | Good | 1997 | 22.9 m | 1,455 |
| DRAINAGE | Montana | Poor | 1970 | 6.4 m | 1,452 |
| CLARK FORK RIVER 11 | Montana | Good | 1975 | 79.2 m | 1,451 |
| SEP 34TH ST-I 15 | Montana | Good | 1967 | 75.3 m | 1,447 |
| MILL COULEE CREEK | Montana | Fair | 1940 | 23.2 m | 1,437 |
| MILL COULEE CREEK | Montana | Fair | 1940 | 23.2 m | 1,437 |
| GRANITE CREEK | Montana | Good | 2023 | 21.7 m | 1,433 |
| STOCKPASS | Montana | Poor | 1949 | 6.4 m | 1,432 |
| DEARBORN RIVER | Montana | Fair | 1949 | 56.7 m | 1,432 |
| JEFFERSON RIVER | Montana | Fair | 1967 | 88.1 m | 1,429 |
| SOUTH BOULDER RIVER | Montana | Fair | 1958 | 15.2 m | 1,429 |
| FISHER RIVER | Montana | Fair | 1987 | 56.1 m | 1,429 |
| MCKILLOP RD | Montana | Fair | 1960 | 23.1 m | 1,429 |
| MILLER CREEK | Montana | Good | 1988 | 10.4 m | 1,429 |
| BRICKER SPARROW DITCH | Montana | Fair | 1958 | 11.6 m | 1,429 |
| FIRST HAY CREEK | Montana | Fair | 2004 | 32.6 m | 1,422 |
| WHITETAIL CREEK | Montana | Fair | 1955 | 19.5 m | 1,419 |
| MARIAS RIVER | Montana | Good | 1988 | 83.2 m | 1,417 |
| RR | Montana | Fair | 1949 | 62.1 m | 1,416 |
| LITTLE BLACKFOOT RIVER | Montana | Fair | 1952 | 42.8 m | 1,416 |
| ROCK CREEK CANAL | Montana | Fair | 1996 | 18.3 m | 1,414 |
| MILK RIVER OVERFLOW | Montana | Fair | 1966 | 43.9 m | 1,414 |
| BIG DITCH 029 | Montana | Fair | 1968 | 12.2 m | 1,412 |
| BEAVER CREEK | Montana | Fair | 2003 | 50.0 m | 1,409 |
| BEAVER CREEK OVERFLOW | Montana | Fair | 1968 | 27.9 m | 1,409 |
| BEAVER CREEK OVERFLOW | Montana | Fair | 1968 | 28.0 m | 1,409 |
| BEAVER CREEK | Montana | Fair | 1966 | 50.0 m | 1,409 |
| STOCKPASS-DRAINAGE | Montana | Fair | 1965 | 6.7 m | 1,408 |
| DRAINAGE | Montana | Good | 1970 | 6.5 m | 1,402 |
| BOX ELDER CREEK | Montana | Fair | 1992 | 6.4 m | 1,400 |
| RR | Montana | Poor | 1959 | 56.0 m | 1,397 |
| LITTLE PORCUPINE CREEK | Montana | Fair | 1960 | 62.7 m | 1,396 |
| BIG SPRING CREEK | Montana | Fair | 1962 | 15.8 m | 1,394 |
| SUN RIVER 056 | Montana | Good | 1987 | 67.1 m | 1,390 |
| SEP WEST HILL-I 15 127 | Montana | Poor | 1967 | 97.5 m | 1,364 |
| DODSON SOUTH CANAL | Montana | Fair | 1966 | 31.4 m | 1,363 |
| JEFFERSON RIVER SLOUGH | Montana | Fair | 1968 | 34.0 m | 1,362 |
| SAGE CREEK | Montana | Good | 1958 | 36.6 m | 1,360 |
| ABANDONED RAILROAD | Montana | Fair | 1966 | 50.3 m | 1,354 |
| RR | Montana | Fair | 1966 | 57.9 m | 1,354 |
| CLARK FORK | Montana | Poor | 1966 | 91.7 m | 1,354 |
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.