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.

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BridgeLocationConditionYear BuiltLengthADT
BEATRICE CR Montana Fair 1959 15.7 m 50
THOMPSON RIVER Montana Good 1996 29.0 m 50
CAMAS CREEK Montana Good 1983 14.3 m 50
AKOKALA CREEK Montana Good 1983 9.8 m 50
BOWMAN CREEK Montana Fair 1965 18.3 m 50
KINTLA CREEK Montana Fair 1965 18.3 m 50
FORD CREEK Montana Fair 1965 9.1 m 50
CREEK Montana Fair 2001 8.5 m 50
CREEK Montana Fair 2001 8.4 m 50
UPPER DIVIDE CREEK Montana Fair 1970 30.5 m 50
LITTLE POWDER RIVER 011 Montana Fair 1970 18.9 m 50
N FK BLACKFOOT RIVER 005 Montana Fair 2000 43.5 m 50
BIG BLACKFOOT RIVER 006 Montana Fair 1953 57.6 m 50
LITTLE PORCUPINE CR 055 Montana Fair 1985 19.8 m 50
ROTTEN GRASS CREEK 008 Montana Good 1966 31.4 m 49
FISH CREEK 022 Montana Fair 1983 7.9 m 49
MUSSELSHELL RIVER 023 Montana Good 1983 36.9 m 49
BLACK COULEE 072 Montana Poor 1950 16.8 m 49
INT BECKHILL I 90 008 Montana Fair 1978 92.7 m 49
LITTLE BLACKFOOT R 023 Montana Good 2011 35.4 m 49
NORTH FORK HORSE CREEK Montana Good 2023 26.8 m 48
CROW CREEK 004 Montana Fair 1986 11.6 m 48
INT SWEETGRASS-I 15 Montana Fair 1964 78.6 m 48
UPPER SEVEN MILE CREEK Montana Fair 1986 11.1 m 48
PEOPLE`S CREEK 106 Montana Fair 1971 8.2 m 47
COW CREEK 091 Montana Good 1933 8.2 m 47
PUMPKIN CREEK 002 Montana Fair 1981 13.6 m 47
SAND CREEK 003 Montana Fair 1980 12.3 m 47
MIZPAH CREEK 020 Montana Fair 1931 23.2 m 47
SPRING CREEK 019 Montana Fair 1912 7.5 m 47
POWDER RIVER 016 Montana Fair 2008 143.4 m 47
BRIDGE CREEK Montana Good 2004 9.5 m 47
BEAVER CREEK 011 Montana Fair 2017 25.9 m 46
HOGUM CREEK Montana Fair 1962 7.9 m 46
BLACKFOOT RIVER Montana Fair 1965 14.2 m 46
LOGGING CREEK Montana Fair 1956 10.0 m 46
LOGGING CREEK Montana Fair 1956 8.4 m 46
BELT CREEK Montana Poor 1954 37.2 m 46
USBR MAIN CANAL 071 Montana Good 1991 35.2 m 46
SAGE CREEK 053 Montana Good 2009 25.3 m 46
MIDDLE FORK DEARBORN 010 Montana Good 2014 30.5 m 46
MCDONALD CREEK 003 Montana Fair 1940 12.2 m 46
BIG MUDDY CREEK 015 Montana Fair 1985 18.3 m 46
DALY CR Montana Fair 1947 9.4 m 45
LODGE GRASS CREEK 070 Montana Good 2015 19.5 m 45
COTTONWOOD CREEK 027 Montana Good 2012 36.9 m 45
COTTONWOOD CREEK 140 Montana Good 2013 19.7 m 45
BEAVER CREEK 049 Montana Poor 1983 24.7 m 45
RED ROCK COULEE 080 Montana Fair 1970 9.4 m 42
FT. BELKNAP CANAL 08 Montana Fair 1970 12.3 m 42

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.