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
I 90 EB ON RAMP Idaho Good 2024 48.5 m 32,500
I 90 EB ON RAMP Idaho Good 2023 48.5 m 32,500
AMERICANA BLVD;15TH ST. Idaho Fair 1992 167.3 m 32,500
SH 41 Idaho Good 2024 48.2 m 32,500
SH 41 Idaho Good 2023 44.7 m 32,250
SH 41 Idaho Good 2023 48.2 m 32,250
SH 41;SH 41 IC Idaho Fair 1971 39.6 m 32,250
SMA 7076;LINDSAY BLVD.IC Idaho Fair 1966 35.7 m 32,000
IDAHO CANAL Idaho Fair 2004 10.7 m 32,000
UPRR Idaho Fair 1966 44.2 m 32,000
CANYON CREEK Idaho Fair 1956 8.1 m 32,000
SPOKANE RIVER Idaho Fair 1976 141.7 m 32,000
SPOKANE RIVER Idaho Fair 1976 141.7 m 32,000
SNAKE RIVER; PERRINE BR. Idaho Fair 1976 457.2 m 31,500
INDIAN CREEK Idaho Good 1968 7.3 m 31,500
PEDESTRIAN/BIKE PATH Idaho Poor 1971 39.6 m 31,250
HUETTER ROAD GS Idaho Fair 1971 34.7 m 31,250
ATLAS ROAD GS Idaho Fair 1971 29.3 m 31,250
ATLAS ROAD GS Idaho Fair 1971 29.3 m 31,250
PEDESTRIAN/BIKE PATH Idaho Fair 1971 39.6 m 31,250
HUETTER ROAD GS Idaho Fair 1971 39.6 m 31,250
S 8505;PLEASANT VIEW IC Idaho Fair 1976 49.1 m 31,000
I 90B;POST FALLS IC Idaho Fair 1977 52.1 m 31,000
I 90B;POST FALLS IC Idaho Fair 1977 52.1 m 31,000
S 8505;PLEASANT VIEW IC Idaho Fair 1976 49.1 m 31,000
I 84;SAND HOLLOW RD GS Idaho Fair 1962 69.5 m 30,500
SAND CREEK Idaho Good 2002 13.4 m 30,000
ROSS FORK CREEK Idaho Good 2023 7.9 m 29,000
SETTLERS CANAL Idaho Fair 2000 21.6 m 29,000
UPRR;NAMPA RR OVERPASS Idaho Fair 1968 131.1 m 29,000
SH 48;RIGBY GS Idaho Fair 1976 44.8 m 28,500
BURGESS CANAL Idaho Fair 1975 28.0 m 28,500
US 20-26;BOISE RV SLOUGH Idaho Fair 1991 189.6 m 28,250
US 20-26;BOISE RV SLOUGH Idaho Fair 1991 217.9 m 28,250
BOISE RIVER;BROADWAY BR Idaho Fair 2016 143.9 m 28,000
NEW YORK CANAL Idaho Fair 1973 24.7 m 28,000
AMERICANA BLVD;15TH ST. Idaho Fair 1992 164.6 m 28,000
I 84 EB-WB;VISTA AVE IC Idaho Fair 2010 55.5 m 28,000
SAND CREEK Idaho Poor 1994 13.1 m 27,500
ANDERSON CANAL Idaho Fair 1970 7.3 m 27,000
WILLOW CREEK Idaho Fair 1970 6.7 m 27,000
INDIAN CREEK Idaho Fair 1951 7.9 m 26,500
UPRR Idaho Good 1969 44.7 m 26,000
UPRR; GOWEN SPUR Idaho Good 2015 36.0 m 26,000
RIDENBAUGH CANAL Idaho Fair 1970 13.7 m 26,000
UPRR; GOWEN SPUR Idaho Good 2015 35.4 m 26,000
UPRR;INDIAN CR;CALDWELL Idaho Fair 1983 86.9 m 26,000
TEN MILE DRAIN Idaho Good 1990 6.7 m 26,000
RIVERSIDE CANAL Idaho Good 2019 11.3 m 26,000
UPRR Idaho Good 1969 44.5 m 26,000

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.