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 COUNTY ROAD Montana Fair 1977 23.8 m 2,188
BEAVERHEAD RIVER Montana Fair 1962 52.7 m 2,185
BEAVERHEAD RIVER Montana Fair 1981 52.7 m 2,185
BEAVERHD R-HIGH BRDG RD Montana Fair 1964 122.5 m 2,185
BEAVERHD R-HIGH BRDG RD Montana Fair 1981 136.6 m 2,185
SEP HIGH BRIDGE RD Montana Fair 1986 24.4 m 2,185
SEP HIGH BRIDGE RD Montana Fair 1986 24.4 m 2,185
BEAVERHEAD RIVER Montana Fair 1964 49.7 m 2,185
BEAVERHEAD RIVER Montana Good 1980 46.9 m 2,185
SEP HIGH BRIDGE RD Montana Fair 1988 24.1 m 2,185
SEP HIGH BRDGE RD Montana Fair 1988 24.1 m 2,185
HOT SPRINGS CREEK Montana Fair 1959 15.8 m 2,181
WILDLIFE CROSSING Montana Good 2019 15.1 m 2,177
THOMPSON RIVER Montana Good 2015 133.7 m 2,177
RR (TRACKS NOT IN USE) Montana Fair 1986 66.8 m 2,176
RR (TRACKS NOT IN USE) Montana Fair 1966 70.4 m 2,176
RR Montana Fair 1955 39.3 m 2,174
YELLOWSTONE RIVER Montana Fair 1955 120.1 m 2,174
INT MISSION I 90 Montana Fair 1962 64.3 m 2,174
SEEPAY CREEK Montana Fair 1969 9.4 m 2,167
ARMELLS CR-RR Montana Fair 1972 126.2 m 2,166
ARMELLS CR-RR Montana Good 1967 120.5 m 2,166
SMITH CREEK-SEP CO RD Montana Fair 1972 67.2 m 2,166
SMITH CREEK-SEP CO RD Montana Good 1967 67.2 m 2,166
MUSSELSHELL RIVER Montana Fair 1959 43.6 m 2,161
FRONT ST-RR Montana Fair 1938 116.4 m 2,161
BIG COULEE CREEK Montana Good 1959 30.8 m 2,161
COUNTY ROAD 119 Montana Fair 1973 18.3 m 2,159
INT CRACKER BOX ROAD Montana Fair 1973 42.5 m 2,159
INT CRACKER BOX ROAD Montana Fair 1973 42.5 m 2,159
COUNTY ROAD 119 Montana Fair 1973 18.3 m 2,159
RATTLESNAKE CREEK 002 Montana Good 1911 27.4 m 2,157
DRAINAGE Montana Poor 1940 17.7 m 2,141
BATTLE CREEK-N FK MILK R Montana Good 1999 44.4 m 2,141
DRAINAGE Montana Fair 1940 11.9 m 2,141
DRAINAGE Montana Fair 1940 17.7 m 2,141
DRAINAGE Montana Poor 1940 11.9 m 2,141
DRAINAGE Montana Fair 1941 17.7 m 2,141
DRAINAGE Montana Fair 1940 11.9 m 2,141
KEEP COOL CREEK Montana Good 1993 8.0 m 2,140
BEAVER CREEK Montana Good 1993 6.7 m 2,140
COTTONWOOD CREEK Montana Fair 1971 47.7 m 2,137
INT DIAMOND RING Montana Fair 1971 39.0 m 2,137
INT DIAMOND RING Montana Fair 1971 42.1 m 2,137
SEP ACCESS ROAD Montana Fair 1971 24.1 m 2,137
SEP MONTANA ROAD Montana Fair 1971 23.8 m 2,137
SEP ACCESS ROAD Montana Fair 1971 24.1 m 2,137
INT POWDER RIVER Montana Fair 1971 23.8 m 2,137
SEP MONTANA ROAD Montana Fair 1971 23.8 m 2,137
POWDER RIVER Montana Fair 1971 164.0 m 2,137

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.