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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.

Clear
BridgeLocationConditionYear BuiltLengthADT
SAWTOOTH CREEK Montana Fair 1972 16.5 m 972
INT KEVIN HWY Montana Good 1980 43.9 m 972
INT KEVIN HWY Montana Fair 1964 36.6 m 972
CAUSEWAY-LAKE HELENA 072 Montana Fair 1944 7.6 m 971
BUFFALO SPRING CREEK Montana Fair 1966 28.2 m 971
DUPUYER CREEK Montana Good 2003 75.9 m 968
ST MARY CANAL 046 Montana Good 1991 25.0 m 966
E FORK BITTERROOT RIVER Montana Good 2003 45.0 m 962
SEP I 90 Montana Fair 1980 120.4 m 958
INT 1ST ST NE Montana Good 1977 44.8 m 955
INT 1ST ST NE Montana Fair 1961 51.8 m 955
RR Montana Fair 1977 102.4 m 955
RR Montana Fair 1961 95.4 m 955
HUNTLEY MAIN CANAL 006 Montana Fair 1967 18.6 m 952
CLARK FORK 008 Montana Fair 1964 139.3 m 948
RR 076 Montana Fair 1982 82.0 m 948
BULL HOOK DIVERSION 017 Montana Good 1984 46.6 m 948
MILL CREEK-STOCKPASS Montana Fair 1986 9.8 m 942
NORTH WOMAN CREEK Montana Good 1986 8.4 m 942
HIGH DITCH 112 Montana Fair 1970 7.3 m 937
BIG DITCH 111 Montana Good 2008 13.7 m 937
JOCKO RIVER Montana Good 1949 25.1 m 934
WEST FORK WILLOW CREEK Montana Good 2019 48.4 m 931
N FORK WILLOW CREEK Montana Good 1989 45.7 m 931
MISSOURI RIVER Montana Poor 1962 215.8 m 930
ELK CREEK Montana Fair 1952 17.5 m 930
PRICKLY PEAR CREEK Montana Good 1981 16.8 m 927
UPPER 7 MILE CREEK Montana Good 1966 31.4 m 924
MISSION CREEK Montana Fair 1959 22.9 m 922
LOST CREEK Montana Fair 1976 9.1 m 918
BIG MUDDY RIVER Montana Fair 2012 88.1 m 917
ABANDONED RR 043 Montana Good 2014 7.2 m 916
RACETRACK CREEK 067 Montana Fair 1930 10.7 m 916
DEMPSEY CREEK 059 Montana Poor 1930 19.5 m 916
POWELL CREEK 063 Montana Fair 1930 11.1 m 916
LOST CREEK 037 Montana Fair 1931 11.3 m 916
LITTLE BIGHORN RIVER Montana Good 1980 49.2 m 915
LITTLE BIGHORN RIVER Montana Fair 1955 41.5 m 915
LITTLE BOULDER RIVER Montana Fair 2016 29.4 m 913
ANIMAL CROSSING Montana Good 2016 11.8 m 913
MILK RIVER Montana Fair 1992 128.6 m 912
LOST CREEK Montana Fair 1988 8.7 m 910
HORSE CREEK Montana Fair 1988 37.5 m 910
MILL CREEK Montana Fair 1925 20.4 m 909
GADY COULEE Montana Fair 1994 7.9 m 905
DRAINAGE Montana Good 1994 8.7 m 901
WOLF CREEK Montana Fair 1993 23.2 m 901
DRAINAGE Montana Good 1994 9.0 m 901
TWO LEGGIN CANAL Montana Good 1991 21.9 m 899
WILLIAMS COULEE Montana Good 2021 22.3 m 899

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.