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
NINEMILE CREEK 029 Montana Fair 1972 19.5 m 486
FISHTRAP CREEK Montana Good 1941 17.4 m 485
LAMARCHE CREEK Montana Good 1941 24.7 m 485
DEEP CREEK Montana Fair 2006 27.3 m 485
SEYMOUR CREEK Montana Good 2006 16.3 m 485
BIG TIMBER CREEK Montana Fair 2004 23.8 m 484
ALKALI CREEK Montana Good 2021 29.6 m 484
ALKALI CREEK Montana Good 2021 14.2 m 484
ALKALI CREEK 053 Montana Fair 1969 7.3 m 484
MISSOURI RIVER 054 Montana Poor 1933 154.5 m 484
SHEEP CREEK 117 Montana Fair 1933 19.5 m 484
OTTER CREEK Montana Good 2000 19.8 m 484
ALKALI CREEK 034 Montana Fair 1989 11.3 m 484
CHIPPEWA CREEK Montana Good 1962 25.0 m 483
MCDONALD CREEK Montana Good 1962 28.0 m 483
DRAINAGE Montana Fair 1955 9.4 m 483
SAGEHEN CREEK Montana Fair 1973 36.9 m 483
MUSSELSHELL RIVER Montana Fair 1973 114.0 m 483
DOG CREEK Montana Fair 1985 8.5 m 483
CALF CREEK Montana Good 1968 40.2 m 483
FORDS CREEK Montana Good 1962 28.0 m 483
LITTLE BOX ELDER CREEK Montana Good 1962 25.0 m 483
RED LODGE CREEK Montana Poor 1953 8.2 m 481
POPLAR RIVER Montana Fair 2002 77.6 m 481
DRAINAGE Montana Good 2003 7.3 m 480
Russell Creek Montana Good 2019 12.3 m 480
RUSSELL CREEK 035 Montana Fair 1940 17.5 m 480
BOYLE-O`HANLON COULEES Montana Fair 1939 22.9 m 479
MILK RIVER Montana Fair 1957 112.7 m 479
DRAINAGE Montana Fair 1954 11.6 m 477
DOG CREEK Montana Fair 1954 11.6 m 477
DOG CREEK Montana Fair 1953 11.6 m 477
SUN RIVER Montana Good 1983 115.5 m 475
SAND CREEK Montana Fair 1953 46.8 m 474
SKALKAHO CR OVERFLOW 040 Montana Fair 1935 6.7 m 474
SKALKAHO CREEK 102 Montana Fair 1972 16.8 m 474
DRAINAGE Montana Poor 1940 12.0 m 473
LITTLE PIPESTONE CREEK Montana Fair 1934 23.2 m 473
PABLO 3A CANAL 037 Montana Poor 1985 9.1 m 471
VALIER CANAL Montana Good 1965 25.3 m 470
SPRING CREEK 111 Montana Fair 1960 8.8 m 468
QUARTZ CREEK 037 Montana Good 1987 18.9 m 465
SOUTH FORK BEAR CREEK Montana Good 1960 28.0 m 465
NORTH FORK BEAR CREEK Montana Good 1960 25.0 m 465
DRAINAGE Montana Fair 2004 7.7 m 462
DRAINAGE-STOCKPASS Montana Good 2023 7.9 m 462
PADEN COULEE Montana Good 2023 7.5 m 462
BIG DRY CREEK Montana Fair 2013 133.8 m 462
MAXWELL COULEE Montana Fair 2012 31.8 m 462
L-S CREEK Montana Good 2016 52.7 m 462

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.