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
PROSPECT CREEK Montana Fair 1979 29.0 m 138
HARPER`S COULEE Montana Fair 1954 11.9 m 137
SMITH CREEK Montana Fair 1958 23.2 m 137
WOLF CREEK Montana Good 1977 25.9 m 137
ELK CREEK Montana Fair 1958 11.9 m 137
OTTER CREEK Montana Fair 1957 12.2 m 136
ROCK CR Montana Poor 1970 14.1 m 136
SHEEP CREEK 003 Montana Fair 1979 21.3 m 133
RUBY RIVER 023 Montana Poor 1927 11.3 m 133
WILLOW CREEK Montana Fair 1949 7.9 m 133
WHITETAIL CREEK Montana Fair 2004 24.4 m 132
USBR MAIN CANAL 051 Montana Good 1992 18.3 m 132
S FORK WHITETAIL CREEK Montana Fair 1999 8.6 m 132
EF PIPE CR Montana Fair 1994 6.2 m 132
SPOTTED BEAR RIVER Montana Fair 1967 46.9 m 130
SMITH RIVER Montana Fair 1975 46.9 m 130
CLARK FORK RIVER 002 Montana Poor 1986 51.8 m 130
DUCK CREEK Montana Fair 1980 9.2 m 129
S FORK MILK RIVER Montana Fair 1973 46.0 m 129
YELLOWSTONE RIVER 010 Montana Fair 2000 130.0 m 129
CROW CREEK 070 Montana Poor 1986 9.2 m 128
INT E ROSEBUD I 94 003 Montana Fair 1970 100.9 m 128
GRAVEYARD CREEK 055 Montana Poor 1928 12.5 m 128
SWEENEY CREEK 064 Montana Poor 1930 34.7 m 128
BUTTE CREEK 041 Montana Fair 2015 27.8 m 128
REDWATER RIVER Montana Fair 1962 59.2 m 127
HELL CREEK Montana Fair 1962 12.2 m 127
MILK RIVER 014 Montana Good 1997 59.9 m 126
FORT BELKNAP CANAL 015 Montana Fair 1933 12.5 m 126
BIG DITCH 109 Montana Fair 1936 9.4 m 125
JOCKO RIVER 056 Montana Good 2012 49.0 m 124
BIG SPRING CREEK Montana Good 1999 27.0 m 123
MILK RIVER Montana Fair 1969 92.7 m 123
LTL PRICKLY PEAR CR 097 Montana Good 1952 8.3 m 122
SUPPLY DITCH 065 Montana Good 1994 7.8 m 122
DRAINAGE DITCH 191 Montana Good 1980 10.7 m 122
BEAN CREEK Montana Fair 1957 12.0 m 121
SNAKE CREEK Montana Fair 1957 11.9 m 121
ALKALI CREEK Montana Fair 1966 34.4 m 121
S FORK MCDONALD CR Montana Good 2021 19.8 m 120
S FORK MCDONALD CREEK Montana Good 2021 18.4 m 120
LOWER TWIN CREEK Montana Good 1965 33.5 m 120
UPPER TWIN CR Montana Good 1965 33.5 m 120
VALIER CANAL 035 Montana Good 1950 14.3 m 120
WHITEWATER CREEK Montana Fair 2001 49.6 m 120
S FORK MCDONALD CR 046 Montana Fair 1986 9.8 m 120
S FORK MCDONALD CR 070 Montana Fair 1982 12.5 m 120
S FORK MCDONALD CR 071 Montana Fair 1970 10.1 m 120
S FORK MCDONALD CR 072 Montana Good 2011 24.4 m 120
AUTOMATIC CREEK 036 Montana Fair 1951 33.2 m 119

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.