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
PORTNEUF RIVER Idaho Good 2005 15.5 m 108
SALMON RIVER;SW.CLAYTON Idaho Fair 1970 42.7 m 106
SIDEHILL CANAL Idaho Fair 1956 6.7 m 106
FIGHTING CREEK Idaho Good 2021 16.2 m 101
CASCADE DAM SPILLWAY Idaho Fair 1947 14.6 m 100
South Fork of the Snake Idaho Good 2012 94.5 m 100
RAPID CREEK Idaho Fair 1997 7.6 m 100
FORT HALL MAIN CANAL Idaho Fair 1980 9.8 m 100
TRAIL CREEK Idaho Fair 1965 7.0 m 100
PORTNEUF R;NW.INKOM BR Idaho Fair 1948 12.8 m 100
PORTNEUF MARSH VALLY CNL Idaho Good 2019 8.5 m 100
PORTNEUF RIVER Idaho Fair 1945 24.7 m 100
I 15 NB-SB;BOWMAN RD.GS Idaho Fair 1971 83.5 m 100
BEAR RIVER Idaho Fair 2005 59.4 m 100
PEOPLES CANAL Idaho Fair 1978 9.8 m 100
HIGH LINE CANAL Idaho Fair 1975 11.6 m 100
LOW LINE CANAL Idaho Fair 1972 16.5 m 100
ABERDEEN SPRINGFIELD CNL Idaho Fair 1984 12.2 m 100
HIGH LINE CANAL Idaho Fair 1971 13.4 m 100
CORBETT SLOUGH CANAL Idaho Good 1965 8.2 m 100
ABERDEEN SPRINGFIELD CNL Idaho Fair 1963 29.6 m 100
LOW LINE CANAL Idaho Fair 1966 14.0 m 100
GIBSON CANAL Idaho Fair 1952 6.7 m 100
LOW LINE CANAL Idaho Fair 1973 9.4 m 100
ABERDEEN SPRINGFIELD CNL Idaho Fair 2018 28.0 m 100
LOW LINE CANAL Idaho Fair 1970 9.8 m 100
HIGH LINE CANAL Idaho Fair 1980 12.2 m 100
E.BR.SNAKE R.VALLEY CNL Idaho Good 1974 7.9 m 100
PEOPLES CANAL Idaho Fair 1976 10.7 m 100
HIGH LINE CANAL Idaho Fair 1974 23.8 m 100
ABERDEEN SPRINGFIELD CNL Idaho Fair 1967 26.2 m 100
LOW LINE CANAL Idaho Fair 1935 9.4 m 100
HIGH LINE CANAL Idaho Fair 1980 15.8 m 100
LATERAL C CANAL Idaho Fair 1973 7.6 m 100
E.BR.SNAKE R.VALLEY CNL Idaho Fair 1968 6.7 m 100
BEAR RIVER Idaho Poor 1972 30.5 m 100
BLACKFOOT RIVER Idaho Good 2001 21.6 m 100
DIAMOND CREEK Idaho Fair 1990 8.8 m 100
WEST CACHE CANAL Idaho Fair 1960 11.0 m 100
ROCK CREEK Idaho Fair 1971 13.4 m 100
TRAIL CREEK Idaho Fair 1965 11.0 m 100
S.FK. ROCK CREEK Idaho Fair 1980 14.9 m 100
LANES GULCH Idaho Good 1981 6.9 m 100
ROCK CR;REGISTER ROCK BR Idaho Fair 1981 26.2 m 100
BELLEVUE CANAL Idaho Fair 2000 8.2 m 100
BIG WOOD RIVER Idaho Fair 1975 21.3 m 100
BELLEVUE CANAL Idaho Fair 1993 8.5 m 100
CEDAR CREEK Idaho Fair 1961 6.1 m 100
KNOWLTON CREEK Idaho Good 2024 18.7 m 100
W.FK.PINE CREEK Idaho Fair 1975 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.