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 |
|---|---|---|---|---|---|
| SWEET GRASS CREEK 01 | Montana | Fair | 1957 | 33.5 m | 100 |
| SWEET GRASS CREEK 044 | Montana | Poor | 1970 | 14.6 m | 100 |
| SEP I 90 008 | Montana | Fair | 1981 | 87.1 m | 100 |
| BRIDGER CREEK 054 | Montana | Fair | 2004 | 9.6 m | 100 |
| WORK CREEK 050 | Montana | Fair | 1993 | 8.8 m | 100 |
| UPPER DEER CREEK 028 | Montana | Poor | 1975 | 13.4 m | 100 |
| BOULDER RIVER 030 | Montana | Good | 2002 | 36.1 m | 100 |
| E BOULDER RIVER 031 | Montana | Fair | 1965 | 12.5 m | 100 |
| E BOULDER RIVER 033 | Montana | Good | 1969 | 9.1 m | 100 |
| E BOULDER RIVER 034 | Montana | Fair | 1971 | 10.4 m | 100 |
| INT DEHART I 90 007 | Montana | Good | 1981 | 90.2 m | 100 |
| BRIDGER CREEK 053 | Montana | Fair | 1975 | 12.8 m | 100 |
| BOZEMAN CREEK 115 | Montana | Fair | 1982 | 7.8 m | 100 |
| BOULDER RIVER 045 | Montana | Fair | 1960 | 36.0 m | 100 |
| WEST BOULDER RIVER 025 | Montana | Poor | 1912 | 18.9 m | 100 |
| TETON RIVER 051 | Montana | Fair | 1930 | 30.8 m | 100 |
| TETON RIVER 061 | Montana | Fair | 1970 | 30.5 m | 100 |
| DOG CREEK 062 | Montana | Good | 2013 | 23.8 m | 100 |
| NORTH FORK WILLOW CR 066 | Montana | Fair | 1986 | 12.2 m | 100 |
| DOG CREEK 069 | Montana | Good | 2013 | 23.8 m | 100 |
| WILLOW CREEK 070 | Montana | Fair | 1970 | 18.9 m | 100 |
| DEEP CREEK 076 | Montana | Good | 1986 | 15.2 m | 100 |
| MUDDY CREEK 018 | Montana | Poor | 1938 | 26.8 m | 100 |
| FOSTER CREEK 026 | Montana | Good | 1984 | 15.5 m | 100 |
| MUDDY CREEK 025 | Montana | Good | 2009 | 39.5 m | 100 |
| NO NAME DITCH 011 | Montana | Good | 1938 | 8.5 m | 100 |
| NO NAME DITCH 012 | Montana | Good | 1995 | 6.1 m | 100 |
| MUDDY CREEK 010 | Montana | Good | 2007 | 12.3 m | 100 |
| GREENFIELD CANAL 058 | Montana | Good | 1978 | 19.2 m | 100 |
| BIG COULEE 059 | Montana | Fair | 1976 | 9.8 m | 100 |
| GREENFIELD SO CANAL 039 | Montana | Poor | 1966 | 11.9 m | 100 |
| SPRING CREEK 023 | Montana | Fair | 1969 | 10.4 m | 100 |
| CLARKS FK YELLOWSTONE026 | Montana | Fair | 1969 | 73.1 m | 100 |
| SUN RIVER SLOPE CANAL071 | Montana | Good | 2016 | 29.4 m | 100 |
| DEEP CREEK 065 | Montana | Good | 1976 | 25.6 m | 100 |
| TETON CANAL 030 | Montana | Fair | 1984 | 7.9 m | 100 |
| TETON RIVER 049 | Montana | Good | 1998 | 43.0 m | 100 |
| SEP I 15 001 | Montana | Good | 1977 | 90.8 m | 100 |
| GREENFIELD CANAL 042 | Montana | Fair | 1969 | 11.8 m | 100 |
| GREENFIELD CANAL 055 | Montana | Fair | 1994 | 18.8 m | 100 |
| DRAINAGE 057 | Montana | Fair | 1988 | 7.3 m | 100 |
| DRAINAGE 129 | Montana | Poor | 1974 | 6.9 m | 100 |
| TETON RIVER 067 | Montana | Good | 1976 | 43.9 m | 100 |
| SPRING VALLEY CANAL 047 | Montana | Fair | 1975 | 21.6 m | 100 |
| MUDDY CREEK 016 | Montana | Fair | 1980 | 45.7 m | 100 |
| GREENFIELD CANAL 043 | Montana | Fair | 1988 | 17.6 m | 100 |
| SPRING VALLEY CANAL 046 | Montana | Fair | 1986 | 19.2 m | 100 |
| TETON RIVER 068 | Montana | Fair | 1976 | 23.5 m | 100 |
| TETON RIVER 060 | Montana | Fair | 1938 | 29.3 m | 100 |
| TETON RIVER 064 | Montana | Fair | 1973 | 43.6 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.