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 |
|---|---|---|---|---|---|
| DRAINAGE 112 | Montana | Fair | 1951 | 23.5 m | 16 |
| DODSON NORTH CANAL 014 | Montana | Fair | 1990 | 7.3 m | 16 |
| DRAINAGE | Montana | Poor | 1973 | 7.3 m | 16 |
| SWEET GRASS CREEK 01 | Montana | Good | 2017 | 31.1 m | 15 |
| NICHOLS COULEE | Montana | Fair | 1963 | 9.4 m | 15 |
| BIRCH CREEK | Montana | Good | 1995 | 7.4 m | 15 |
| BIG SWAMP CR | Montana | Fair | 1968 | 7.5 m | 15 |
| TIE CREEK | Montana | Poor | 1964 | 7.3 m | 15 |
| BIG SWAMP CR | Montana | Poor | 1968 | 7.5 m | 15 |
| BIG SWAMP CR | Montana | Poor | 1968 | 7.5 m | 15 |
| PINTLAR CREEK | Montana | Fair | 1981 | 8.5 m | 15 |
| MOOSE CREEK | Montana | Fair | 1974 | 7.3 m | 15 |
| JOHNSON CR. | Montana | Fair | 2002 | 8.1 m | 15 |
| RED ROCK RIVER 086 | Montana | Fair | 1909 | 19.5 m | 15 |
| BIG COULEE CREEK 010 | Montana | Fair | 1975 | 10.7 m | 15 |
| E FK SWEET GRASS CR 01 | Montana | Good | 2012 | 15.6 m | 15 |
| LOST HORSE CR | Montana | Fair | 1968 | 14.3 m | 14 |
| BEAVERHEAD RIVER 023 | Montana | Poor | 1908 | 29.3 m | 14 |
| WOLF CREEK 076 | Montana | Fair | 1979 | 12.5 m | 14 |
| CROW CREEK 043 | Montana | Fair | 1960 | 14.3 m | 14 |
| BLUFF CREEK 044 | Montana | Fair | 1973 | 15.2 m | 14 |
| ROCK CREEK 031 | Montana | Fair | 2013 | 66.8 m | 14 |
| SNAKE CREEK 046 | Montana | Fair | 1986 | 23.2 m | 14 |
| FLATWILLOW CREEK | Montana | Good | 1962 | 102.3 m | 14 |
| OTTER CREEK 125 | Montana | Fair | 1950 | 8.8 m | 13 |
| JUDITH RIVER 012 | Montana | Good | 2001 | 68.8 m | 13 |
| WOLF CREEK 013 | Montana | Fair | 1980 | 20.4 m | 13 |
| LEVINGS GULCH 158 | Montana | Fair | 1933 | 6.4 m | 13 |
| LITTLE PRICKLY PEAR 111 | Montana | Fair | 1962 | 19.2 m | 13 |
| WOODY ISLAND COULEE 074 | Montana | Fair | 1991 | 56.7 m | 13 |
| WOLF CREEK 061 | Montana | Fair | 1970 | 18.7 m | 13 |
| BIG MUDDY CREEK 034 | Montana | Fair | 1984 | 18.4 m | 13 |
| BIG MUDDY CREEK 033 | Montana | Fair | 1987 | 17.1 m | 13 |
| INT SWAYZE ROAD I 15 002 | Montana | Fair | 1971 | 68.2 m | 13 |
| UPPER LODGE GRASS CREEK | Montana | Poor | 1994 | 7.0 m | 12 |
| BIG BEAVER CR. | Montana | Good | 2006 | 13.7 m | 12 |
| HUNTLEY MAIN CANAL 154 | Montana | Fair | 1982 | 7.6 m | 12 |
| SANDSTONE CREEK 034 | Montana | Fair | 2005 | 18.5 m | 11 |
| SAGE CREEK 004 | Montana | Good | 2009 | 25.3 m | 11 |
| Frenchtown Main Canal | Montana | Fair | 1970 | 12.3 m | 10 |
| Anita Dam Spillway | Montana | Poor | 1937 | 13.0 m | 10 |
| TWO MEDICINE MAIN CANAL | Montana | Fair | 1990 | 18.7 m | 10 |
| ST MARY CANAL | Montana | Good | 2002 | 25.3 m | 10 |
| ROSEBUD CREEK | Montana | Fair | 1983 | 15.4 m | 10 |
| BOX ELDER CREEK | Montana | Good | 2003 | 7.5 m | 10 |
| MILL POCKET-CAMAS CANAL | Montana | Fair | 2004 | 11.3 m | 10 |
| BENDER CR. | Montana | Good | 2002 | 8.4 m | 10 |
| COTTONWOOD CR | Montana | Good | 2003 | 17.1 m | 10 |
| STORM LAKE CREEK | Montana | Good | 2011 | 10.7 m | 10 |
| STORM LAKE CREEK | Montana | Good | 2011 | 10.7 m | 10 |
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.