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
MILK RIVER Montana Fair 2000 90.4 m 79
PENNEL CREEK Montana Good 2020 13.4 m 78
YELLOWSTONE RIVER 094 Montana Fair 1907 324.3 m 78
INDIAN CREEK 043 Montana Good 2001 14.9 m 78
CLARK FORK RIVER 026 Montana Fair 2006 51.3 m 78
MILK RIVER 071 Montana Fair 1998 112.2 m 78
FLATHEAD CREEK Montana Good 2017 7.6 m 77
LAKE FRANCIS CANAL 075 Montana Fair 1960 14.3 m 77
LONE MAN COULEE Montana Fair 1975 15.2 m 77
DRY FK MARIAS RIVER 030 Montana Fair 1960 18.6 m 77
PONDERA COULEE 029 Montana Fair 1960 7.6 m 77
E FORK PORCUPINE CREEK Montana Fair 1983 7.6 m 77
MCCUNE CREEK Montana Fair 1962 12.4 m 77
VAIL CREEK Montana Poor 1976 14.6 m 77
EAST ROSEBUD CREEK 017 Montana Fair 2010 23.5 m 76
EAST ROSEBUD CREEK 018 Montana Fair 1993 37.7 m 76
SAND CREEK 022 Montana Fair 1974 45.4 m 76
PRAIRIE ELK CREEK 021 Montana Fair 1972 42.5 m 76
HUNTLEY MAIN CANAL 152 Montana Fair 1982 11.9 m 76
SOUTH FORK SANDSTONE CR Montana Fair 1964 40.4 m 76
S FRK TWO MEDICINE RIVER Montana Fair 1962 51.7 m 75
FORTY MILE CREEK Montana Good 1990 7.3 m 75
SOUTH FORK PEOPLES CREEK Montana Fair 1991 23.8 m 75
JOCKO RIVER Montana Good 1996 18.3 m 75
RACETRACK CREEK Montana Good 2015 18.5 m 75
RED ROCK RIVER 084 Montana Good 2024 18.4 m 75
DEEP CREEK Montana Good 1966 15.5 m 75
GRAVES CREEK Montana Good 2002 24.8 m 75
KOOCANUSA RESERVOIR Montana Fair 1971 742.8 m 75
MCDONALD CREEK Montana Good 2000 58.7 m 75
LOGGING CREEK Montana Good 1965 18.3 m 75
QUARTZ CREEK Montana Fair 1965 18.3 m 75
BOX ELDER CREEK 006 Montana Fair 1965 69.1 m 74
CLEAR CREEK 036 Montana Fair 1988 14.1 m 74
PARSON CREEK Montana Fair 2008 6.7 m 74
SMITH CREEK Montana Good 2008 52.5 m 74
DRAINAGE OVERFLOW Montana Fair 1935 14.0 m 74
OTTER CREEK Montana Good 2013 14.4 m 73
COYOTE CREEK 085 Montana Fair 1977 9.5 m 73
WOLF CREEK 086 Montana Fair 1962 9.4 m 73
MOOSE CREEK 038 Montana Good 1976 17.7 m 73
WHALE CREEK 048 Montana Fair 1976 44.2 m 73
TEPEE CREEK 010 Montana Good 2009 18.3 m 73
TRAIL CREEK 050 Montana Good 2010 19.8 m 73
USBR MAIN CANAL 067 Montana Good 2015 19.5 m 73
SWEET GRASS CREEK 00 Montana Good 2009 31.0 m 73
INT WHOOPUP RD-I 94 001 Montana Fair 1976 92.0 m 72
IRRIGATION CANAL 048 Montana Fair 1940 9.5 m 72
SEP I 94 005 Montana Fair 1968 84.1 m 72
RED ROCK RIVER 034 Montana Fair 1977 12.2 m 71

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.