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
BIG CREEK Montana Fair 1980 37.8 m 461
TRAIL CREEK Montana Good 2021 22.1 m 461
TRAIL CREEK Montana Good 2021 22.1 m 461
TRAIL CREEK Montana Fair 1961 18.3 m 461
TRAIL CREEK Montana Good 1961 11.6 m 461
RUBY CREEK Montana Fair 1961 18.3 m 461
JOCKO RIVER 054 Montana Fair 1970 24.4 m 460
VALLEY CREEK 055 Montana Fair 1960 9.4 m 460
DEARBORN RIVER Montana Fair 1963 91.1 m 460
NORTH FORK FLATHEAD RIVE Montana Fair 1964 122.7 m 460
BELT CREEK Montana Good 2009 83.0 m 459
SUPPLY DITCH 023 Montana Fair 1978 10.7 m 459
CRIPPLE HORSE CREEK Montana Poor 1974 42.7 m 458
FIVE MILE CREEK Montana Fair 1974 82.9 m 458
BERGMAN SLOUGH 019 Montana Fair 1934 7.9 m 457
ALKALI CREEK Montana Fair 1994 55.8 m 456
PETTY CREEK 117 Montana Good 2013 22.6 m 455
PETTY CREEK 038 Montana Good 1990 11.6 m 455
SEP RAPELJE-I 90 Montana Fair 1971 150.2 m 453
KEYSER CREEK Montana Fair 1976 28.7 m 453
APIKUNI CREEK Montana Fair 1931 11.5 m 452
WINDY CREEK Montana Fair 1931 11.2 m 452
GREENFIELD SOUTH CANAL Montana Fair 1969 16.8 m 452
DRAINAGE 117 Montana Fair 1939 8.2 m 452
BELT CREEK Montana Good 1967 44.0 m 451
DRY FORK BELT CREEK Montana Good 2014 9.8 m 451
BELT CREEK Montana Good 1951 30.5 m 451
BLAINE SPRING CREEK Montana Good 2016 39.6 m 449
MADISON RIVER Montana Good 2020 78.0 m 449
DRY WASH Montana Fair 1936 18.0 m 449
DRAINAGE Montana Fair 1935 23.0 m 448
TWIN COULEE Montana Fair 1935 17.6 m 448
TWIN COULEE Montana Fair 1935 17.2 m 448
BIG HOLE RIVER Montana Fair 1960 99.0 m 448
SEP I 15 12 Montana Fair 1973 90.8 m 448
DRAINAGE Montana Poor 1956 10.4 m 446
DRAINAGE Montana Fair 2008 7.5 m 446
DEAN CREEK Montana Fair 1935 23.5 m 441
CURRANT CREEK Montana Fair 1936 28.5 m 441
DRAINAGE Montana Good 2006 8.1 m 441
CHERRY CREEK Montana Fair 2007 100.5 m 441
YELLOWSTONE RIVER Montana Fair 1959 273.2 m 441
BIG SHOULDER CREEK Montana Fair 1963 6.2 m 440
HORSETHIEF CREEK Montana Good 2015 27.8 m 440
ELK CREEK Montana Good 2008 24.7 m 439
ELK CREEK OVERFLOW Montana Good 2008 24.7 m 439
BIG SPRING CREEK 133 Montana Poor 1962 15.5 m 437
CAINS COULEE Montana Fair 1964 10.8 m 437
DRAINAGE Montana Fair 1964 15.7 m 437
FLAT CREEK Montana Good 2007 22.3 m 429

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.