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.

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BridgeLocationConditionYear BuiltLengthADT
LOW LINE CANAL Idaho Fair 1962 8.8 m 2,700
LATERAL A CANAL Idaho Good 2019 7.0 m 2,700
UPPER W.BRANCH PRIEST R. Idaho Fair 1937 90.2 m 2,700
BOISE RIVER Idaho Fair 1975 60.4 m 2,700
PORTNEUF RIVER Idaho Good 1968 29.3 m 2,700
MUD CREEK Idaho Good 2017 19.8 m 2,700
REXBURG CANAL Idaho Fair 1976 7.0 m 2,690
NOBLE CANAL Idaho Fair 1977 6.7 m 2,610
IDAHO CANAL Idaho Fair 1951 15.2 m 2,600
UPRR;MOYIE SPRINGS OP Idaho Fair 1965 44.2 m 2,600
MOYIE R.GORGE;MOYIE BR. Idaho Fair 1965 372.8 m 2,600
BIG BEAR CREEK Idaho Fair 1954 43.0 m 2,600
SMRR;UPRR;PLUMMER CRK Idaho Fair 2016 158.8 m 2,600
BENEWAH CREEK Idaho Fair 1996 35.4 m 2,600
I 15 NB-SB; FORT HALL IC Idaho Good 2023 67.7 m 2,600
NEW YORK CANAL Idaho Good 1977 36.6 m 2,600
DRY CREEK CANAL Idaho Fair 2015 11.3 m 2,600
A-1 CANAL Idaho Fair 1950 10.1 m 2,600
SNAKE RIVER;DOWNARD BR Idaho Fair 1994 342.3 m 2,600
IDAHO CANAL Idaho Fair 1960 23.2 m 2,600
CONSOLIDATED FARMERS CNL Idaho Good 2010 9.8 m 2,600
PARADISE CREEK Idaho Fair 1915 9.1 m 2,600
MARSH CREEK Idaho Fair 2013 14.3 m 2,600
HENRYS FORK SNAKE RIVER Idaho Good 2007 75.0 m 2,600
ARCO CANAL Idaho Good 1962 7.9 m 2,600
SPRING CREEK Idaho Good 1962 9.8 m 2,600
BIG LOST RIVER Idaho Fair 1962 19.5 m 2,600
GALLOWAY CANAL Idaho Fair 1977 7.3 m 2,600
LITTLE SALMON RIVER Idaho Good 2017 61.3 m 2,600
BOULDER CREEK Idaho Fair 2002 35.1 m 2,600
FALL CREEK Idaho Fair 2001 12.2 m 2,600
LITTLE SALMON RIVER Idaho Fair 1962 67.1 m 2,600
LITTLE SALMON RIVER Idaho Fair 1962 61.6 m 2,600
LITTLE SALMON RIVER Idaho Fair 1962 61.6 m 2,600
LITTLE SALMON RIVER Idaho Fair 1961 50.9 m 2,600
RAPID RIVER Idaho Good 2005 38.4 m 2,600
NEW YORK CANAL Idaho Good 2014 32.9 m 2,600
GOLDEN GATE LOW LINE CNL Idaho Fair 1991 23.8 m 2,500
RIVERSIDE CANAL Idaho Fair 1940 7.3 m 2,500
SUCCOR CREEK Idaho Good 2017 49.4 m 2,500
I 90 EB-WB;MCGUIRE RD.GS Idaho Fair 1976 98.8 m 2,500
HAYDEN CREEK Idaho Fair 1987 10.7 m 2,500
REXBURG CANAL Idaho Fair 1978 7.0 m 2,500
PORTNEUF RIVER Idaho Good 2017 23.5 m 2,500
ROCK CREEK Idaho Fair 1983 25.6 m 2,500
N. FK. ROCK CREEK Idaho Fair 2008 83.2 m 2,500
BLACK CANYON CANAL Idaho Fair 1973 21.0 m 2,500
CANAL Idaho Fair 1985 9.8 m 2,500
BLACKFOOT CANAL Idaho Fair 2006 15.5 m 2,500
RESERVATION CANAL Idaho Fair 2006 15.5 m 2,500

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.