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
SOUTH FORK SPRING CREEK Montana Fair 1979 8.4 m 50
WARM SPRINGS CR Montana Good 1979 16.0 m 50
RACETRACK CR Montana Fair 1981 10.0 m 50
BOULDER RIVER Montana Fair 1957 21.8 m 50
BISON CREEK Montana Fair 1986 12.4 m 50
MIDDLE FORK ROCK CR Montana Fair 1956 15.6 m 50
COPPER CR Montana Fair 1956 14.2 m 50
SPILLWAY Montana Fair 1958 34.3 m 50
WEST FORK ROCK CR Montana Fair 1965 15.4 m 50
BOWLES CR Montana Fair 1971 10.0 m 50
ROSS FORK Montana Fair 1962 21.2 m 50
ROSS FORK Montana Poor 1967 12.3 m 50
SWAMP GUL Montana Poor 1987 8.6 m 50
BOULDER CR Montana Poor 1949 94.2 m 50
BEEFSTRAIGHT CR Montana Fair 1963 7.5 m 50
GERMAN GULCH Montana Good 1966 7.5 m 50
HELLS CANYON CREEK Montana Good 1998 7.0 m 50
SWAN RIVER Montana Good 2012 49.8 m 50
HALL CREEK Montana Good 1997 8.5 m 50
CONDON CREEK Montana Fair 2010 14.1 m 50
JIM CREEK Montana Good 2016 20.4 m 50
CLAYTON CREEK Montana Good 2007 7.3 m 50
RYLE CREEK Montana Fair 2015 7.7 m 50
ALDER CREEK Montana Good 1983 13.7 m 50
GRIFFIN CREEK Montana Good 2001 23.3 m 50
HAND CREEK Montana Fair 2010 17.7 m 50
E. BOULDER RIVER Montana Good 2007 17.4 m 50
TRESPASS CREEK Montana Fair 1970 7.3 m 50
WEST FORK MILL CREEK Montana Fair 1971 11.1 m 50
W.FORK MILL CREEK Montana Fair 1971 9.8 m 50
W.FORK MILL CREEK Montana Fair 1971 8.6 m 50
ROCK CREEK Montana Fair 1987 7.6 m 50
BIG CREEK Montana Poor 1961 12.5 m 50
SHIELDS RIVER Montana Good 1976 22.3 m 50
MILL CREEK Montana Poor 1952 8.7 m 50
CREEK Montana Good 2000 25.3 m 50
MILL CREEK Montana Good 2009 18.0 m 50
DEEP CREEK Montana Good 2009 7.0 m 50
SIX MILE CREEK Montana Good 2014 15.2 m 50
TOM MINER CREEK Montana Fair 1976 7.4 m 50
CEDAR CREEK Montana Fair 1999 8.6 m 50
SHIELDS RIVER Montana Good 2016 9.8 m 50
SHIELDS RIVER Montana Fair 2016 10.1 m 50
MILL CREEK Montana Good 2024 19.2 m 50
WAPITI CREEK Montana Poor 1954 8.7 m 50
STORMCASTLE CREEK Montana Fair 1957 10.0 m 50
HYALITE CREEK Montana Fair 1952 12.5 m 50
STORMCASTLE CREEK Montana Fair 1957 9.9 m 50
STORMCASTLE CREEK Montana Fair 1954 8.1 m 50
STORMCASTLE CREEK Montana Fair 1948 9.3 m 50

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.