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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.

Clear
BridgeLocationConditionYear BuiltLengthADT
SEP LYONS CREEK ROAD Montana Good 1964 40.8 m 2,555
INT WOLF CREEK Montana Fair 1966 34.7 m 2,555
INT WOLF CREEK Montana Good 1966 34.7 m 2,555
PARK COULEE Montana Good 1995 20.4 m 2,548
RAZOR CREEK Montana Good 1995 47.2 m 2,548
WEST FORK RAZOR CREEK Montana Good 1995 31.1 m 2,548
SEP TROY CREEK ROAD Montana Fair 1973 23.8 m 2,534
SEP TROY CREEK ROAD Montana Fair 1973 23.8 m 2,534
SEP AMAZON RD Montana Fair 1973 24.1 m 2,534
SEP AMAZON ROAD Montana Fair 1973 24.1 m 2,534
SARPY CREEK Montana Good 1967 57.6 m 2,521
INT HYSHAM Montana Good 1964 43.9 m 2,521
INT HYSHAM Montana Good 1976 47.5 m 2,521
RR Montana Good 1997 47.5 m 2,515
SPRING CREEK Montana Fair 1938 10.1 m 2,515
MILL COULEE CREEK Montana Good 1996 21.0 m 2,505
SUN RIVER Montana Fair 1996 81.1 m 2,505
SHILOH INTERCHANGE Montana Good 2001 100.3 m 2,504
UPPER SEVEN MILE CREEK Montana Fair 1959 36.6 m 2,501
CHERRY CREEK Montana Fair 1952 12.2 m 2,492
DEER LICK CREEK Montana Fair 2017 60.8 m 2,491
MOCCASIN CREEK Montana Fair 1972 10.1 m 2,491
ROCK CREEK Montana Good 2001 37.0 m 2,491
BIG DITCH 051 Montana Poor 1932 19.8 m 2,489
PRICKLY PEAR CREEK Montana Good 2024 6.7 m 2,485
CLARK FORK RIVER Montana Poor 1960 290.3 m 2,482
STILLWATER RIVER Montana Fair 1955 18.3 m 2,479
LITTLE MUDDY CREEK Montana Good 1958 30.5 m 2,455
LITTLE MUDDY CREEK Montana Good 1958 30.5 m 2,455
INT N CASCADE Montana Good 1977 39.3 m 2,455
INT N CASCADE Montana Good 1961 37.8 m 2,455
YELLOWSTONE RIVER Montana Poor 1994 335.9 m 2,438
RR Montana Fair 1972 123.4 m 2,421
BIG SPRING CREEK Montana Fair 1920 7.9 m 2,412
INT CUSTER-S 310 Montana Fair 1973 23.2 m 2,406
INT CUSTER-S 310 Montana Fair 1973 23.2 m 2,406
LITTLE PRICKLY PEAR CR Montana Fair 1965 198.8 m 2,403
STONE CREEK Montana Fair 1949 11.6 m 2,403
BEAVERHEAD RIVER Montana Fair 1949 46.6 m 2,403
INT GATES OF THE MTNS Montana Good 1962 36.6 m 2,403
INT GATES OF THE MTNS Montana Good 1962 36.6 m 2,403
INT SEIBEN Montana Good 1962 35.1 m 2,403
LITTLE PRICKLY PEAR CR Montana Fair 1965 160.3 m 2,403
INT SEIBEN Montana Good 1962 35.1 m 2,403
INT CUSTER BATLFLD I 90 Montana Fair 1959 63.7 m 2,397
BAKER LAKE OVERFLOW Montana Good 2009 10.6 m 2,393
JOE HILL CREEK Montana Good 2007 29.8 m 2,376
WHITEBIRD CREEK Montana Fair 2007 28.8 m 2,376
BEAVER CREEK Montana Good 2010 27.3 m 2,376
RATTLESNAKE CREEK 009 Montana Poor 1966 28.7 m 2,363

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.