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
STC 1762;PORTNEUF RD IC Idaho Fair 1963 50.3 m 9,750
I 86 EB RAMP Idaho Good 2023 126.2 m 9,750
I 86 EB-WB; CHUBBUCK IC Idaho Good 2013 52.4 m 9,750
SNAKE RIVER DRY BED CNL Idaho Fair 1975 21.9 m 9,750
SNAKE RIVER DRY BED CNL Idaho Fair 1975 21.9 m 9,750
MENAN CANAL Idaho Fair 1975 13.4 m 9,750
MENAN CANAL Idaho Fair 1975 13.4 m 9,750
MENAN-LORENZO RD IC Idaho Good 2011 31.1 m 9,750
MENAN-LORENZO RD IC Idaho Good 2011 31.1 m 9,750
CANYON CR;GLENNS FERRY Idaho Fair 1976 22.6 m 9,750
SNAKE RIVER Idaho Good 2016 306.0 m 9,750
SNAKE RIVER Idaho Fair 2017 306.0 m 9,750
RD;UPRR;SNAKE R;GLENNS F Idaho Fair 1974 333.5 m 9,750
SNAKE RIVER;KING HILL Idaho Fair 1974 304.2 m 9,750
SNAKE RIVER;KING HILL Idaho Fair 1974 304.2 m 9,750
RD;UPRR;SNAKE R;GLENNS F Idaho Fair 1974 342.0 m 9,750
CANYON CR;GLENNS FERRY Idaho Fair 1976 22.6 m 9,750
I 86 EB-WB; CHUBBUCK IC Idaho Good 2013 52.4 m 9,750
I 90 EB OFF;W.MULLAN IC Idaho Fair 1973 41.1 m 9,600
US 95;SH 200 IC Idaho Good 2012 96.9 m 9,600
PORTNEUF RIVER Idaho Fair 1957 27.4 m 9,600
PORTNEUF RIVER Idaho Fair 1957 27.4 m 9,600
COPPER STREET GS Idaho Fair 1973 24.1 m 9,600
RIDENBAUGH CANAL Idaho Good 2009 7.3 m 9,500
SOUTHSIDE CANAL Idaho Fair 1960 64.3 m 9,500
S.FK.COEUR DALENE RIVER Idaho Fair 1964 46.3 m 9,500
1250 E GS Idaho Fair 1960 32.9 m 9,500
US 95/SH 54 IC Idaho Good 2014 58.5 m 9,500
RIDENBAUGH CANAL Idaho Good 1992 11.3 m 9,500
S.FK.COEUR DALENE RIVER Idaho Fair 1964 46.3 m 9,500
1250 E GS Idaho Good 1960 32.9 m 9,500
SOUTHSIDE CANAL Idaho Fair 1960 64.3 m 9,500
US 20;N.RIGBY IC Idaho Fair 1975 69.8 m 9,500
SNAKE RIVER VALLEY CANAL Idaho Good 2018 18.9 m 9,500
US 95/SH 54 IC Idaho Good 2014 58.5 m 9,500
NEW YORK CANAL Idaho Fair 1961 18.9 m 9,300
RR ROADBED/NO TRACKS Idaho Fair 1972 78.0 m 9,300
RIDENBAUGH CANAL Idaho Fair 1991 14.6 m 9,300
BNRR;COLBURN OVERPASS Idaho Fair 1988 102.7 m 9,300
PACK RIVER;N COLBURN BR. Idaho Good 1988 46.3 m 9,300
UPRR;E.BLISS RAILROAD OP Idaho Fair 1975 74.7 m 9,250
FRONTAGE RD;GS NO.3 Idaho Fair 1977 41.5 m 9,250
FRONTAGE RD;GS NO.3 Idaho Fair 1977 40.2 m 9,250
MALAD R.GORGE;N.TUTTLE Idaho Fair 1975 60.4 m 9,250
MALAD R.GORGE;N.TUTTLE Idaho Fair 1975 69.5 m 9,250
UPRR;E.BLISS RAILROAD OP Idaho Fair 1975 74.7 m 9,250
SNAKE RIVER;HANSEN BR. Idaho Fair 1966 232.3 m 9,200
I 15 SB-NB;N. SHELLEY IC Idaho Good 1996 74.7 m 9,200
FARMERS FRIEND CANAL Idaho Fair 1979 10.4 m 9,100
N.BR.FALL RIVER CANAL Idaho Good 1979 6.7 m 9,100

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.