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 |
|---|---|---|---|---|---|
| SMART CREEK | Montana | Fair | 1970 | 10.0 m | 616 |
| BIG HOLE RIVER | Montana | Fair | 1968 | 92.7 m | 616 |
| RR | Montana | Poor | 1936 | 43.6 m | 612 |
| PINKHAM CREEK | Montana | Poor | 1971 | 63.4 m | 612 |
| BEAVERHEAD RIVER | Montana | Fair | 1945 | 42.6 m | 612 |
| POINDEXTER SLOUGH | Montana | Fair | 1936 | 23.5 m | 612 |
| CADETTE CREEK | Montana | Poor | 1971 | 29.6 m | 612 |
| HELENA VALLEY CANAL 150 | Montana | Fair | 1958 | 6.8 m | 611 |
| BIG MUDDY CREEK | Montana | Good | 2010 | 95.3 m | 609 |
| BIG PIPESTONE CREEK 062 | Montana | Fair | 1931 | 23.2 m | 608 |
| COLBERT CREEK 063 | Montana | Fair | 1931 | 11.6 m | 608 |
| SUNDAY CREEK | Montana | Fair | 1961 | 60.3 m | 607 |
| NORTH FORK SMITH RIVER | Montana | Fair | 1955 | 11.6 m | 607 |
| STONY CREEK 011 | Montana | Fair | 1999 | 15.3 m | 603 |
| RANCH CREEK 009 | Montana | Fair | 1977 | 9.6 m | 603 |
| ROCK CREEK 010 | Montana | Good | 1976 | 27.4 m | 603 |
| ROCK CREEK 054 | Montana | Good | 1987 | 24.7 m | 603 |
| CLARK FK-RR-HWY 106 | Montana | Fair | 1972 | 137.2 m | 603 |
| Canyon Ferry Spillway | Montana | Fair | 1950 | 70.2 m | 600 |
| THREE MILE CREEK | Montana | Good | 2014 | 30.1 m | 600 |
| RED ROCK CREEK | Montana | Fair | 1964 | 8.8 m | 600 |
| MILK RIVER | Montana | Fair | 1964 | 65.2 m | 600 |
| STILLWATER RIVER | Montana | Fair | 1945 | 53.6 m | 598 |
| W FORK STILLWATER RIVER | Montana | Good | 2003 | 24.0 m | 598 |
| W FORK STILLWATER RIVER | Montana | Good | 2003 | 24.0 m | 598 |
| 4TH OF JULY CREEK 013 | Montana | Good | 2001 | 8.0 m | 596 |
| PRYOR CREEK 014 | Montana | Fair | 2001 | 28.2 m | 596 |
| BIG DITCH 031 | Montana | Good | 1988 | 13.7 m | 594 |
| RED LODGE CREEK 013 | Montana | Fair | 1991 | 11.9 m | 593 |
| COONEY RES SPILLWAY 014 | Montana | Fair | 1982 | 22.6 m | 593 |
| ROCK CREEK 027 | Montana | Fair | 1973 | 46.9 m | 593 |
| USRS CANAL | Montana | Good | 2005 | 33.4 m | 591 |
| PLENTYWOOD CREEK | Montana | Good | 2001 | 9.5 m | 589 |
| MCCOY CREEK | Montana | Good | 2001 | 38.3 m | 589 |
| BENSLEY CREEK | Montana | Good | 1999 | 6.8 m | 585 |
| INT BAKER-I 94 | Montana | Fair | 1974 | 82.4 m | 585 |
| SEP I 90 006 | Montana | Fair | 1964 | 77.5 m | 583 |
| ASH CREEK | Montana | Fair | 1942 | 23.2 m | 581 |
| FIVE MILE CREEK 118 | Montana | Good | 2007 | 36.7 m | 575 |
| NORTH FORK SMITH RIVER | Montana | Fair | 1962 | 9.1 m | 575 |
| PONDERA COULEE | Montana | Good | 1971 | 30.5 m | 572 |
| SEP SOLLID ROAD-I 15 | Montana | Fair | 1972 | 102.8 m | 572 |
| E GALLATIN RIVER 059 | Montana | Fair | 1985 | 28.3 m | 571 |
| GALLATIN RIVER 084 | Montana | Poor | 1919 | 43.3 m | 569 |
| SQUIRREL CREEK | Montana | Fair | 1981 | 8.2 m | 568 |
| BEAVER CREEK | Montana | Good | 2003 | 24.7 m | 566 |
| BEAVER CREEK | Montana | Good | 2002 | 19.2 m | 566 |
| BEAVER CREEK | Montana | Good | 2003 | 19.2 m | 566 |
| BEAVER CREEK | Montana | Good | 2003 | 24.7 m | 566 |
| INT AUGUSTA I 15 | Montana | Fair | 1966 | 59.5 m | 564 |
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.