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
E FK FISHTRAP Montana Poor 1973 7.5 m 20
NO DATA ENTERED Montana Good 1994 12.5 m 20
NO DATA ENTERED Montana Good 1994 11.9 m 20
RUBY CR Montana Poor 1968 7.3 m 20
RUBY CR Montana Poor 1952 7.3 m 20
BLODGETT CR Montana Fair 1967 12.2 m 20
CAMP CR Montana Fair 1979 10.2 m 20
BOULDER CREEK Montana Good 1979 19.8 m 20
W F BITTERROOT Montana Fair 1957 49.7 m 20
SWAN RIVER Montana Fair 1956 70.4 m 20
SKYLAND CREEK Montana Fair 1963 9.1 m 20
RED MEADOW CREEK Montana Fair 1960 8.5 m 20
RED MEADOW CREEK Montana Fair 1966 10.4 m 20
GOOD CREEK Montana Poor 1962 10.0 m 20
GRIFFIN CREEK Montana Good 1980 16.8 m 20
CROW CREEK Montana Fair 1983 7.3 m 20
TEN MILE CREEK Montana Poor 1957 7.3 m 20
POORMAN CREEK Montana Fair 1979 7.2 m 20
POORMAN CREEK Montana Good 2013 8.8 m 20
OBRIEN CR Montana Good 1979 8.7 m 20
OBRIEN CREEK Montana Good 1966 12.5 m 20
S FK CALLAHAN CR Montana Fair 1976 17.8 m 20
NO FK CALLAHAN CR Montana Good 1978 24.7 m 20
FISHER RIVER Montana Fair 1986 16.8 m 20
N BRANCH MARTEN CREEK Montana Fair 1967 8.1 m 20
BEAVER CREEK Montana Fair 1965 10.0 m 20
EAST FK BULL RIVER Montana Fair 1963 7.5 m 20
BIG BEAVER Montana Good 1976 23.3 m 20
MILLER CR Montana Fair 1956 8.5 m 20
BELT CREEK Montana Fair 1960 45.5 m 20
ARMELLS CREEK Montana Good 2017 23.8 m 20
BEAR CREEK Montana Good 1999 10.2 m 20
BEAR CREEK Montana Good 1999 9.1 m 20
BENCH SOUTH CANAL 066 Montana Fair 1950 9.8 m 19
LITTLE BLACKFOOT R 027 Montana Poor 1914 18.6 m 19
DRAINAGE 053 Montana Fair 1989 9.1 m 19
MUDDY CREEK 115 Montana Good 1982 9.1 m 19
LARB CREEK 106 Montana Fair 1987 22.6 m 19
PENNEL CREEK 036 Montana Fair 1982 15.2 m 18
JUDITH RIVER 011 Montana Good 2006 32.0 m 18
GREENFIELD CANAL 053 Montana Good 1938 16.2 m 18
GREENFIELD CANAL 052 Montana Fair 1966 16.9 m 18
PONDERA COULEE Montana Fair 1984 25.0 m 18
USBR MAIN CANAL 091 Montana Fair 2001 22.3 m 17
BIG PORCUPINE CREEK 011 Montana Fair 2006 19.7 m 17
BIG MUDDY CREEK 016 Montana Good 2004 42.5 m 17
IRRIGATION DITCH 005 Montana Poor 1979 8.8 m 17
IRRIGATION DITCH 020 Montana Fair 1978 16.2 m 17
TETON RIVER Montana Fair 1944 24.4 m 16
ROSS FORK CREEK 018 Montana Poor 1925 21.6 m 16

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.