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
DRAINAGE 112 Montana Fair 1951 23.5 m 16
DODSON NORTH CANAL 014 Montana Fair 1990 7.3 m 16
DRAINAGE Montana Poor 1973 7.3 m 16
SWEET GRASS CREEK 01 Montana Good 2017 31.1 m 15
NICHOLS COULEE Montana Fair 1963 9.4 m 15
BIRCH CREEK Montana Good 1995 7.4 m 15
BIG SWAMP CR Montana Fair 1968 7.5 m 15
TIE CREEK Montana Poor 1964 7.3 m 15
BIG SWAMP CR Montana Poor 1968 7.5 m 15
BIG SWAMP CR Montana Poor 1968 7.5 m 15
PINTLAR CREEK Montana Fair 1981 8.5 m 15
MOOSE CREEK Montana Fair 1974 7.3 m 15
JOHNSON CR. Montana Fair 2002 8.1 m 15
RED ROCK RIVER 086 Montana Fair 1909 19.5 m 15
BIG COULEE CREEK 010 Montana Fair 1975 10.7 m 15
E FK SWEET GRASS CR 01 Montana Good 2012 15.6 m 15
LOST HORSE CR Montana Fair 1968 14.3 m 14
BEAVERHEAD RIVER 023 Montana Poor 1908 29.3 m 14
WOLF CREEK 076 Montana Fair 1979 12.5 m 14
CROW CREEK 043 Montana Fair 1960 14.3 m 14
BLUFF CREEK 044 Montana Fair 1973 15.2 m 14
ROCK CREEK 031 Montana Fair 2013 66.8 m 14
SNAKE CREEK 046 Montana Fair 1986 23.2 m 14
FLATWILLOW CREEK Montana Good 1962 102.3 m 14
OTTER CREEK 125 Montana Fair 1950 8.8 m 13
JUDITH RIVER 012 Montana Good 2001 68.8 m 13
WOLF CREEK 013 Montana Fair 1980 20.4 m 13
LEVINGS GULCH 158 Montana Fair 1933 6.4 m 13
LITTLE PRICKLY PEAR 111 Montana Fair 1962 19.2 m 13
WOODY ISLAND COULEE 074 Montana Fair 1991 56.7 m 13
WOLF CREEK 061 Montana Fair 1970 18.7 m 13
BIG MUDDY CREEK 034 Montana Fair 1984 18.4 m 13
BIG MUDDY CREEK 033 Montana Fair 1987 17.1 m 13
INT SWAYZE ROAD I 15 002 Montana Fair 1971 68.2 m 13
UPPER LODGE GRASS CREEK Montana Poor 1994 7.0 m 12
BIG BEAVER CR. Montana Good 2006 13.7 m 12
HUNTLEY MAIN CANAL 154 Montana Fair 1982 7.6 m 12
SANDSTONE CREEK 034 Montana Fair 2005 18.5 m 11
SAGE CREEK 004 Montana Good 2009 25.3 m 11
Frenchtown Main Canal Montana Fair 1970 12.3 m 10
Anita Dam Spillway Montana Poor 1937 13.0 m 10
TWO MEDICINE MAIN CANAL Montana Fair 1990 18.7 m 10
ST MARY CANAL Montana Good 2002 25.3 m 10
ROSEBUD CREEK Montana Fair 1983 15.4 m 10
BOX ELDER CREEK Montana Good 2003 7.5 m 10
MILL POCKET-CAMAS CANAL Montana Fair 2004 11.3 m 10
BENDER CR. Montana Good 2002 8.4 m 10
COTTONWOOD CR Montana Good 2003 17.1 m 10
STORM LAKE CREEK Montana Good 2011 10.7 m 10
STORM LAKE CREEK Montana Good 2011 10.7 m 10

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.