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
N FK BLACKFOOT RIV Montana Fair 1960 43.6 m 40
CLEARWATER RIVER Montana Fair 1951 9.1 m 40
LODGEPOLE CR Montana Good 1996 15.1 m 40
LODGEPOLE CR Montana Fair 1996 13.3 m 40
PLACID CR Montana Good 1976 9.9 m 40
COTTONWOOD CREEK Montana Good 2007 9.6 m 40
COUGAR CREEK Montana Good 2008 9.8 m 40
TRAIL CREEK Montana Good 2011 17.4 m 40
BIG CREEK Montana Fair 1951 18.5 m 40
TWOMILE CREEK Montana Fair 1959 7.4 m 40
RANDOLF CREEK Montana Good 1991 13.3 m 40
HENDERSON CREEK Montana Poor 1955 13.1 m 40
FLAT CREEK CREEK Montana Good 2004 12.5 m 40
NO ELK CREEK Montana Good 2004 9.5 m 40
HAIR BALL Montana Good 2004 9.5 m 40
LOWER NO ELK CREEK Montana Good 2004 9.5 m 40
W FK FISHTRAP Montana Fair 1965 9.9 m 40
WEST FORK DRY CREEK Montana Good 1992 9.9 m 40
RED ROCK COULEE 002 Montana Fair 1933 9.4 m 40
FORT BELKNAP CANAL 003 Montana Good 2012 19.7 m 40
RED ROCK COULEE 004 Montana Fair 1933 12.5 m 40
SHONKIN CREEK 017 Montana Fair 2011 16.3 m 40
S FK BURNS CREEK 063 Montana Fair 1984 9.8 m 40
SHEEP CREEK 082 Montana Good 2014 15.2 m 40
DRAINAGE Montana Fair 1954 8.1 m 40
USBR MAIN CANAL 094 Montana Good 2005 18.3 m 39
VANDALIA SOUTH CANAL 003 Montana Poor 2002 7.4 m 39
REDWATER RIVER Montana Good 1957 98.1 m 39
LONG GRASS CREEK Montana Fair 1957 8.5 m 39
MISSOURI RIVER Montana Fair 1982 275.5 m 39
MILK RIVER Montana Fair 1999 70.3 m 39
WHITEWATER CREEK Montana Poor 1976 24.5 m 39
STINKY CREEK Montana Fair 2003 24.0 m 39
COTTONWOOD CREEK Montana Good 2023 14.6 m 38
FLATWILLOW CREEK 013 Montana Good 2013 23.6 m 38
SILVER BOW CREEK 010 Montana Fair 2007 12.2 m 38
BEAVER CREEK Montana Poor 1960 30.5 m 38
INT GORDON-I 15 Montana Fair 1972 105.5 m 37
LITTLE PRICKLY PEAR 110 Montana Good 2012 17.4 m 37
LITTLE PRICKLY PEAR 109 Montana Fair 1905 30.8 m 37
FLAT CREEK 134 Montana Good 2006 10.9 m 37
FLAT CREEK 017 Montana Good 2007 10.9 m 37
YELLOWSTONE RIVER 030 Montana Fair 1907 328.5 m 37
EAST REDWATER CREEK 084 Montana Fair 2008 30.4 m 37
N FK LISK CREEK 034 Montana Fair 1985 12.2 m 37
ROSEBUD CREEK 047 Montana Fair 1983 12.6 m 37
ROSEBUD CR OVRFLOW 046 Montana Fair 1980 12.2 m 37
ROSEBUD CREEK 048 Montana Fair 1982 18.9 m 37
DRAINAGE Montana Good 2015 22.7 m 36
BEAVERHEAD RIVER Montana Good 2020 42.4 m 36

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.