Browse Bridge Database

4,646 bridges in the FHWA National Bridge Inventory in Idaho.

National Bridge Inventory Database

Browse 4,646 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

Clear
BridgeLocationConditionYear BuiltLengthADT
GAME CREEK Idaho Fair 2001 7.0 m 60
VALLEY CREEK Idaho Good 1986 12.2 m 60
CLEAR CREEK Idaho Fair 1966 9.1 m 60
CLEAR CREEK Idaho Fair 1966 7.9 m 60
CLEAR CREEK Idaho Fair 1966 9.1 m 60
WILLOW CREEK Idaho Fair 1968 19.5 m 60
CLEAR CREEK Idaho Fair 1966 7.9 m 60
NORTH FORK BOISE RIVER Idaho Fair 1949 40.6 m 59
BANNOCK CREEK Idaho Fair 1971 25.4 m 55
BLACKFOOT RIVER Idaho Fair 1971 13.1 m 55
LONG ISLAND CANAL Idaho Fair 1969 7.3 m 50
PLEASANT VALLEY CREEK Idaho Fair 1934 140.2 m 50
PORTNEUF MARSH VAL.CNL Idaho Poor 1968 8.2 m 50
PORTNEUF MARSH VAL.CNL Idaho Fair 1957 8.5 m 50
I 15;2-1/2 MILE ROAD GS Idaho Good 1959 64.6 m 50
BEAR RIVER Idaho Fair 1916 61.6 m 50
ST. CHARLES CR N. BRIDGE Idaho Fair 1920 9.4 m 50
NEW LAVASIDE CANAL Idaho Good 1969 9.1 m 50
IDAHO CANAL Idaho Fair 1968 8.8 m 50
I 15;MACHINE PASS GS Idaho Fair 1960 64.6 m 50
CHESTERFIELD CANAL Idaho Poor 2005 14.0 m 50
TANNER CANAL;NE.GRACE BR Idaho Fair 1958 8.2 m 50
N. EXTENSION CANAL Idaho Fair 2002 8.5 m 50
DOWNY MARSH VALLEY CNL Idaho Fair 1986 7.0 m 50
N. EXTENSION CANAL Idaho Fair 2002 7.6 m 50
CHESTERFIELD CANAL Idaho Good 2002 8.5 m 50
BLACKFOOT RIVER Idaho Fair 1970 18.3 m 50
CUB RIVER;S.MAPLETON BR Idaho Fair 1979 8.2 m 50
CUB RIVER;NE.FRANKLIN BR Idaho Fair 1970 9.1 m 50
BEAR RIVER (REDPOINT BR) Idaho Fair 1980 31.7 m 50
GOLD FORK RIVER Idaho Fair 1966 10.5 m 50
DAIRY CANYON CREEK Idaho Fair 1983 9.4 m 50
I 86;CO FRONTAGE RD GS Idaho Fair 1983 110.9 m 50
W.BR.LITTLE WOOD RIVER Idaho Fair 1952 7.9 m 50
SALMON RIVER Idaho Good 1974 7.3 m 50
SKI TRAIL Idaho Fair 1995 13.7 m 50
GOLD FORK RIVER Idaho Fair 1966 12.3 m 50
BIG LOST RIVER Idaho Fair 1977 21.3 m 50
LITTLE BEAR CREEK Idaho Good 2020 17.7 m 50
BIG CREEK;SE.CALDER BR Idaho Fair 1960 31.1 m 50
SOUTH FORK CDA RIVER Idaho Fair 1985 40.8 m 50
ANDERSON CANAL Idaho Fair 1935 10.7 m 50
WILLOW CREEK Idaho Good 1962 24.7 m 50
ANDERSON CANAL Idaho Good 2004 7.3 m 50
E.BRANCH BIG LOST RIVER Idaho Fair 1992 11.9 m 50
BIG LOST RIVER Idaho Fair 1991 20.7 m 50
BIG LOST RIVER Idaho Fair 1978 17.4 m 50
INDEPENDENT CANAL Idaho Fair 1973 13.1 m 50
UPRR;N.SPENCER RR OP Idaho Poor 1936 90.2 m 50
CAMAS CREEK Idaho Poor 1953 8.2 m 50

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.