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
SNAKE RIVER;MILNER DAM Idaho Fair 1986 83.8 m 360
LAKE FORK CREEK Idaho Good 2017 26.8 m 360
T.F.NORTHSIDE MAIN CNL Idaho Fair 1986 19.8 m 360
MILNER GOODING CANAL Idaho Fair 1986 19.8 m 360
ST. ANTHONY CANAL Idaho Good 2010 10.1 m 360
J CANAL Idaho Fair 1986 10.1 m 360
U CANAL Idaho Fair 1962 31.7 m 360
S.FK.COEUR DALENE RIVER Idaho Poor 1978 9.8 m 360
LITTLE BEAR CREEK Idaho Fair 1965 6.1 m 360
FARMERS COOP SEBREE CNL Idaho Fair 1977 8.8 m 360
700 CREEK Idaho Good 1965 6.1 m 360
LITTLE HANGMAN CREEK Idaho Poor 1977 16.2 m 350
ST. MARIES RIVER Idaho Fair 2015 82.6 m 350
I90;YELLOWSTONE TRAIL GS Idaho Fair 1991 82.3 m 350
BEAR R.;GRACE-TURNER BR. Idaho Fair 1955 92.7 m 350
DRY BED CANAL;MIDWAY BR. Idaho Good 1977 23.8 m 350
SALMON RIVER Idaho Good 2012 73.5 m 350
SALMON RIVER Idaho Good 2012 73.9 m 350
HIGH LINE CANAL Idaho Fair 1981 7.6 m 350
SAND CREEK Idaho Fair 2001 9.1 m 350
N. FK. PAYETTE RIVER Idaho Good 1957 39.3 m 350
MIDDLE LINE CANAL Idaho Good 1959 7.7 m 350
MORA CANAL Idaho Fair 1982 8.5 m 350
PINE CREEK Idaho Poor 2012 12.3 m 350
BIG WOOD RIVER Idaho Fair 2001 35.4 m 350
MORA CANAL Idaho Fair 1976 21.3 m 350
PAYETTE RIVER;GARDENA BR Idaho Fair 1920 89.0 m 350
CEDAR DRAW Idaho Fair 1963 7.3 m 350
HIGH LINE CANAL Idaho Fair 1968 24.7 m 350
R CANAL Idaho Fair 1950 8.2 m 350
HIGH LINE CANAL Idaho Fair 1963 21.3 m 350
CLEAR CREEK Idaho Fair 1965 19.2 m 340
BANNOCK CR.;MICHAUD BR. Idaho Good 1964 7.0 m 340
BLACKFOOT RIVER OVERFLOW Idaho Fair 1964 23.8 m 340
MORA CANAL Idaho Fair 1970 22.3 m 340
ANDERSON CANAL Idaho Fair 1961 7.6 m 340
FARMERS COOP CANAL Idaho Fair 1967 7.0 m 340
CLEARWATER RIVER Idaho Fair 2023 245.4 m 340
FARMERS COOP CANAL Idaho Good 2023 9.1 m 340
MARSH CREEK Idaho Good 2018 6.4 m 340
ROCK CREEK; SE POTLATCH Idaho Fair 1975 6.1 m 340
ST ANTHONY CANAL Idaho Fair 1978 15.5 m 340
W.FK.ST MARIES RIVER Idaho Fair 1957 18.3 m 340
MARBLE CREEK Idaho Fair 1974 59.7 m 330
ST JOE RIVER;AVERY BR Idaho Fair 1935 159.4 m 330
DEER FLAT HIGHLINE CNL Idaho Fair 1981 10.7 m 330
N.FK.PAYETTE RIVER Idaho Good 1977 98.1 m 330
SQUAW CREEK Idaho Poor 1960 7.3 m 330
SQUAW CREEK Idaho Poor 1960 7.3 m 330
LOW LINE CANAL Idaho Fair 1965 15.8 m 330

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.