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
IRRIGATION CANAL 107 Montana Fair 1950 7.3 m 100
BEAVER CREEK 115 Montana Poor 1931 72.5 m 100
VANDALIA SOUTH CANAL 078 Montana Poor 1989 11.6 m 100
MUSSELSHELL RIVER 017 Montana Fair 1965 34.1 m 100
BIG ELK CREEK 004 Montana Fair 1974 9.4 m 100
MUSSELSHELL RIVER 009 Montana Fair 1949 40.2 m 100
ANTELOPE CREEK 019 Montana Fair 1931 11.9 m 100
MUSSELSHELL RIVER 016 Montana Good 1977 33.5 m 100
AMERICAN FORK CREEK 015 Montana Good 1993 20.4 m 100
AMERICAN FORK CREEK 007 Montana Fair 1982 10.1 m 100
MUSSELSHELL RIVER 018 Montana Good 2011 36.9 m 100
MARTINSDALE RES SPWY 021 Montana Fair 1976 7.6 m 100
AMERICAN FORK CREEK 002 Montana Fair 1960 13.4 m 100
MUSSELSHELL RIVER 008 Montana Good 1988 44.8 m 100
ROBERTS CREEK 005 Montana Fair 1962 12.2 m 100
SMITH CREEK 007 Montana Fair 2012 36.6 m 100
INT ROCHLITZ I 94 001 Montana Fair 1974 98.2 m 100
CEDAR CREEK 010 Montana Fair 1987 10.5 m 100
BEAVER CREEK 017 Montana Fair 1997 56.4 m 100
CUSTER COULEE 098 Montana Poor 1962 7.6 m 100
ARROW CREEK 145 Montana Fair 1964 7.0 m 100
HUNTLEY MAIN CANAL 144 Montana Good 2004 15.8 m 100
PRYOR CREEK 004 Montana Fair 1978 29.6 m 100
PRYOR CREEK 007 Montana Fair 1979 28.0 m 100
HUNTLEY MAIN CANAL 104 Montana Good 1975 14.0 m 100
ARROW CREEK 102 Montana Fair 1950 9.8 m 100
NO NAME 149 Montana Good 2004 15.8 m 100
ARROW CREEK 148 Montana Good 1983 19.8 m 100
ARROW CREEK 147 Montana Good 2002 19.5 m 100
ARROW CREEK 100 Montana Fair 1995 15.2 m 100
LITTLE CASINO CREEK 138 Montana Poor 2006 8.4 m 100
BIGHORN RIVER 126 Montana Fair 1930 191.8 m 100
FLY CREEK 143 Montana Fair 1983 20.1 m 100
FLY CREEK 142 Montana Good 1973 23.2 m 100
FLY CREEK 136 Montana Good 1976 24.4 m 100
FLY CREEK 140 Montana Fair 1996 25.3 m 100
FLY CREEK 139 Montana Fair 1960 12.2 m 100
RR 009 Montana Fair 2009 68.3 m 100
INT PRYOR CREEK 012 Montana Fair 1969 100.2 m 100
PRYOR CREEK 001 Montana Fair 1966 15.2 m 100
YELLOWSTONE RIVER 020 Montana Fair 1991 170.0 m 100
DUCK CREEK 021 Montana Good 1992 18.3 m 100
CLARKS FK YELLOWSTONE026 Montana Fair 1969 73.1 m 100
SPRING CREEK 023 Montana Fair 1969 10.4 m 100
DUCK CREEK 022 Montana Fair 1967 12.2 m 100
BLUE CREEK 017 Montana Good 2015 21.8 m 100
BLUE CREEK 127 Montana Good 1993 40.5 m 100
BLUE CREEK 124 Montana Fair 1967 18.3 m 100
BLUE CREEK 123 Montana Fair 2013 26.0 m 100
BLUE CREEK 125 Montana Fair 1979 22.6 m 100

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.