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
I 84;100 SOUTH RD GS 1 Idaho Fair 1965 77.4 m 1,400
BIG WOOD RIVER Idaho Good 1991 36.3 m 1,400
BIG WOOD RIVER Idaho Fair 1958 32.6 m 1,400
BIG WOOD RIVER Idaho Good 2020 28.0 m 1,400
DEER FLAT HIGH LINE CNL Idaho Fair 1997 7.3 m 1,400
CHALLIS CREEK Idaho Good 1991 11.0 m 1,400
SALMON RIVER;CHALLIS BR. Idaho Good 1995 93.3 m 1,400
I 86;TRUCKERVILLE IC Idaho Fair 1972 79.9 m 1,400
S.FK.COEUR DALENE RIVER Idaho Fair 1949 58.2 m 1,400
HIGH LINE CANAL Idaho Fair 1964 25.6 m 1,400
LOW LINE CANAL Idaho Fair 1964 25.3 m 1,400
LITTLE WOOD RIVER Idaho Good 2023 12.3 m 1,400
SIDEHILL CANAL Idaho Good 1981 9.4 m 1,400
DANSKIN CANAL Idaho Good 1968 6.7 m 1,400
TYHEE LATERAL CANAL Idaho Good 1949 7.3 m 1,400
PAYETTE RIVER;E.LETHA BR Idaho Fair 1960 109.7 m 1,400
PAYETTE RIVER Idaho Poor 1959 123.1 m 1,400
FARMERS COOP CANAL Idaho Fair 1965 7.9 m 1,400
I 15;W.PORTERVILLE RD.GS Idaho Fair 1962 77.4 m 1,400
B-2 CANAL Idaho Fair 1975 7.0 m 1,400
N CANAL Idaho Fair 1995 7.9 m 1,400
MORA CANAL Idaho Fair 1975 15.5 m 1,400
E.BR.SNAKE R.VALLEY CNL Idaho Fair 1977 7.3 m 1,300
PHYLLIS CANAL Idaho Fair 1967 11.6 m 1,300
JIMMY BYRNES SLOUGH Idaho Fair 1987 10.5 m 1,300
FARMERS COOP CANAL Idaho Fair 1940 7.9 m 1,300
FARMERS COOP CANAL Idaho Fair 1955 9.8 m 1,300
A LINE CANAL Idaho Fair 1965 8.8 m 1,300
GALLOWAY CANAL Idaho Fair 1990 7.3 m 1,300
J CANAL Idaho Fair 2006 17.7 m 1,300
MONTPELIER CK;LOWER NRWS Idaho Good 2008 9.8 m 1,300
MONTPELIER CK;UPPER NRWS Idaho Good 2008 21.0 m 1,300
MONTPELIER CREEK Idaho Good 2003 6.4 m 1,300
BUTTE ARM CANAL Idaho Fair 1958 8.2 m 1,300
ANDERSON CANAL Idaho Fair 1954 7.3 m 1,300
BLACKFOOT CANAL Idaho Fair 1972 12.8 m 1,300
I 15; ROSE ROAD IC Idaho Good 2020 72.2 m 1,300
MIDDLETON CANAL Idaho Fair 1967 7.6 m 1,300
SAND CREEK Idaho Fair 1962 12.8 m 1,300
NORTH FORK WILLOW CREEK Idaho Fair 1963 11.6 m 1,300
HIGH LINE CANAL Idaho Fair 1968 22.6 m 1,300
RAPID CREEK Idaho Good 2015 10.4 m 1,300
RIDENBAUGH CANAL Idaho Fair 1971 8.2 m 1,300
S.FK.COEUR DALENE RIVER Idaho Fair 1983 34.7 m 1,300
PACK RIVER Idaho Fair 1951 37.2 m 1,300
T.F.NORTHSIDE MAIN CNL Idaho Fair 1930 13.4 m 1,300
I 86 EB-WB;AIRPORT IC Idaho Poor 1968 95.1 m 1,300
SAND CREEK Idaho Fair 1953 22.9 m 1,300
LITTLE SAND CREEK Idaho Fair 1961 11.6 m 1,300
PARADISE CREEK Idaho Good 2009 9.1 m 1,300

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.