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
POORMAN CREEK 153 Montana Good 2009 12.9 m 301
JACK CREEK 028 Montana Poor 1952 8.2 m 301
JACK CREEK 029 Montana Good 2011 8.4 m 301
JACK CREEK 027 Montana Fair 1952 7.9 m 301
ST. MARY RIVER Montana Fair 1964 55.6 m 300
SWIFT CURRENT CREEK Montana Fair 1966 51.8 m 300
LODGE GRASS CREEK Montana Fair 1962 18.2 m 300
SWIFT CURRENT CREEK Montana Good 2014 25.9 m 300
PASS CREEK Montana Fair 1949 19.8 m 299
CLARK FORK 015 Montana Fair 1982 130.9 m 299
DRY CREEK 002 Montana Good 1962 13.7 m 299
PASS CREEK Montana Good 1949 19.8 m 299
BEAVERHEAD RIVER 047 Montana Fair 1995 30.9 m 298
LOCAL DRAINAGE 048 Montana Fair 1959 8.2 m 298
CANYON DITCH Montana Fair 1982 15.5 m 298
LITTLE DRY CREEK Montana Fair 1976 37.3 m 295
THOMPSON CREEK Montana Fair 1997 11.4 m 295
SMITH RIVER Montana Fair 1950 39.6 m 294
SMITH RIVER Montana Good 1962 43.9 m 294
DRAINAGE-STOCKPASS Montana Good 2000 6.7 m 294
BIG CALIFORNIA CREEK Montana Good 2019 25.3 m 293
FRENCH GULCH 042 Montana Good 2015 28.4 m 293
FRENCH CREEK 043 Montana Fair 1950 17.4 m 293
Dry fork Creek Montana Good 2024 43.0 m 292
West Fk Porcupine Creek Montana Good 2024 34.7 m 292
WHITETAIL CREEK Montana Fair 1983 7.9 m 292
PABLO 31A CANAL 036 Montana Poor 2009 24.4 m 292
BIRCH CREEK Montana Fair 1965 87.1 m 292
DRAINAGE Montana Fair 1939 17.7 m 292
GRASSHOPPER CREEK 016 Montana Good 1998 21.0 m 292
CLARKS FK YELLOWSTONE024 Montana Good 1997 125.2 m 290
MISSOURI RIVER Montana Fair 1954 199.0 m 289
BITTERROOT RIVER 074 Montana Fair 1917 50.0 m 289
POPLAR RIVER Montana Good 1988 57.6 m 285
NEGRO COULEE Montana Good 1988 27.1 m 285
GREENFIELD MAIN CANAL Montana Fair 1959 18.0 m 285
GREENFIELD MAIN CANAL Montana Fair 1959 17.4 m 285
WARM SPRINGS CREEK 009 Montana Fair 1960 7.3 m 283
IRRIGATION DITCH 001 Montana Poor 1933 7.9 m 281
LITTLE BLACKFOOT R 019 Montana Fair 1960 10.5 m 281
CLARK FORK RIVER 038 Montana Fair 1989 34.6 m 280
CLARK FORK RIVER 03 Montana Fair 1989 34.9 m 280
MIDDLE FORK ROCK CR 032 Montana Good 2004 26.0 m 278
ROCK CREEK 013 Montana Good 1989 42.9 m 278
DRAINAGE Montana Good 1999 6.5 m 275
SPREAD CREEK Montana Good 1989 41.1 m 274
PETE CREEK Montana Good 1989 22.3 m 274
RESERVATION CREEK 043 Montana Fair 1936 30.5 m 273
IRRIGATION DITCH 024 Montana Fair 1933 17.8 m 273
WYANT COULEE 044 Montana Fair 1932 20.0 m 273

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.