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
PERITSA CREEK Montana Good 2020 8.0 m 564
PRYOR CREEK 069 Montana Fair 1979 30.8 m 564
E FORK PRYOR CREEK 174 Montana Fair 1926 16.8 m 564
FLY CREEK 090 Montana Fair 2002 23.0 m 564
TWO LEGGINS CANAL 0 Montana Poor 1931 10.1 m 564
ROCK CREEK Montana Fair 1967 7.6 m 564
INT AUGUSTA I 15 Montana Fair 1966 59.5 m 564
POPLAR RIVER 013 Montana Fair 1957 54.9 m 563
POPLAR RIVER 015 Montana Poor 1985 31.9 m 563
MCDONALD CREEK Montana Fair 1962 48.8 m 560
HAYMAKER CREEK Montana Fair 1966 19.8 m 557
UPPER DEER CREEK 005 Montana Good 1975 30.5 m 556
DRY CREEK 004 Montana Fair 1937 17.4 m 556
T AND Y CANAL 065 Montana Fair 1978 11.6 m 554
MCDONALD CREEK Montana Good 1967 28.0 m 553
MISSOURI RIVER Montana Fair 1983 161.6 m 553
RED COULEE Montana Fair 1941 18.0 m 552
POWDER RIVER Montana Fair 1973 189.6 m 552
DUGOUT COULEE Montana Good 1973 27.8 m 551
MISSOURI RIVER Montana Fair 1982 329.1 m 551
TROUT CREEK Montana Good 1982 20.1 m 551
LITTLE BIGHORN RIVER Montana Fair 1980 31.4 m 548
FLATHEAD RIVER 070 Montana Fair 1960 118.8 m 548
THIRTY MILE CREEK Montana Fair 1957 27.1 m 546
DUPUYER CREEK Montana Good 1980 53.9 m 543
DUPUYER CREEK OVERFLOW Montana Good 1968 37.2 m 543
TETON RIVER Montana Fair 1953 91.1 m 541
INT MIDWAY I 15 Montana Poor 1972 106.4 m 540
W FK CLEARWATER RIVER Montana Fair 1963 7.3 m 540
MORAN CREEK 053 Montana Good 2017 15.8 m 539
CABINET GORGE RES 049 Montana Good 2017 233.9 m 539
BOX ELDER CREEK Montana Fair 1953 56.1 m 539
LODGE GRASS CREEK Montana Fair 1955 19.7 m 539
COAL CREEK 052 Montana Good 1979 30.5 m 539
SUN RIVER Montana Fair 1936 97.5 m 538
LITTLE DRY CREEK Montana Good 2022 126.3 m 537
DRAINAGE Montana Fair 1938 29.4 m 537
SURPRISE DITCH 060 Montana Poor 1918 8.5 m 537
TETON RIVER Montana Fair 1978 56.1 m 532
DEEP CREEK Montana Fair 1965 56.1 m 532
WEST BOULDER RIVER Montana Fair 1976 46.6 m 529
BOULDER RIVER Montana Good 1975 62.8 m 529
BOULDER RIVER Montana Fair 1950 46.6 m 529
SAND CREEK 038 Montana Fair 1988 11.7 m 525
RR 001 Montana Fair 1946 42.1 m 525
SILVERBOW CREEK 002 Montana Good 2014 32.0 m 525
SEP I 94 002 Montana Fair 1969 88.7 m 523
CANYON CREEK 114 Montana Fair 1972 35.7 m 522
BIG DITCH 113 Montana Fair 1938 7.3 m 522
OLIVER COULEE Montana Good 2004 7.5 m 520

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.