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
PORTER CANAL Idaho Fair 1987 7.3 m 18,000
I 84;NW CALDWELL IC Idaho Fair 1983 69.2 m 18,000
I 90 EB-WB;SELTICE IC Idaho Fair 1977 120.4 m 18,000
BOISE RIVER Idaho Good 2014 526.1 m 18,000
PHYLLIS CANAL Idaho Good 2014 13.7 m 18,000
IDAHO CANAL Idaho Fair 1980 18.3 m 18,000
MEPPEN CANAL Idaho Fair 1980 7.0 m 18,000
SNAKE RIVER;W.BLACKFOOT Idaho Fair 1965 142.3 m 18,000
STC 6706; HITT RD IC Idaho Good 2005 35.4 m 17,750
COUNTY LINE ROAD IC Idaho Good 2001 38.4 m 17,750
COUNTY LINE ROAD IC Idaho Good 2001 38.4 m 17,750
RIRIE OUTLET CHANNEL Idaho Fair 1974 17.7 m 17,750
STC 6706; HITT RD IC Idaho Good 2005 35.4 m 17,750
SH43;EIRR;W BELT BRDG IC Idaho Fair 1972 71.3 m 17,750
RIRIE OUTLET CHANNEL Idaho Fair 1974 17.7 m 17,750
SH43;EIRR;W BELT BRDG IC Idaho Fair 1986 71.6 m 17,750
I 90 EB-WB;4TH ST.IC Idaho Fair 1985 62.5 m 17,500
RIDENBAUGH CANAL Idaho Fair 1979 7.9 m 17,500
S.FK.TETON RIVER Idaho Fair 1971 43.9 m 17,000
RIDENBAUGH CANAL Idaho Fair 1979 11.0 m 17,000
SNAKE RIVER;HEYBURN BR. Idaho Fair 1977 400.2 m 17,000
NORTH SLOUGH Idaho Good 2014 7.3 m 16,500
BOISE RIVER Idaho Fair 1931 92.4 m 16,500
NEW YORK CANAL Idaho Fair 1989 38.1 m 16,000
SOLOMAN DRAIN Idaho Good 2023 6.2 m 16,000
HIGH LINE CANAL Idaho Good 1947 6.7 m 16,000
FARMERS UNION CANAL Idaho Good 1997 8.8 m 16,000
STP 7726;S.REXBURG IC Idaho Good 1981 47.9 m 15,750
STP 7726;S.REXBURG IC Idaho Good 1981 47.9 m 15,750
BOISE RIVER Idaho Fair 1987 94.8 m 15,500
PURPLE SAGE GS Idaho Fair 1962 32.9 m 15,500
PERRINE COULEE CANAL Idaho Fair 1960 7.6 m 15,500
I 90B;NW BLVD;US 95 IC Idaho Fair 1968 25.9 m 15,500
D LINE CANAL Idaho Good 1961 8.5 m 15,500
FIFTEEN MILE CREEK Idaho Fair 1947 7.6 m 15,500
INDIAN CREEK Idaho Good 2020 13.4 m 15,500
SE 9TH AVENUE GS Idaho Good 1961 7.3 m 15,500
PURPLE SAGE GS Idaho Fair 1962 32.9 m 15,500
SAND HOLLOW CREEK Idaho Fair 1962 7.8 m 15,500
INDIAN CREEK Idaho Fair 2006 97.2 m 15,500
I 90 EB-WB; GOVT WAY GS Idaho Fair 2006 53.3 m 15,500
SAND HOLLOW CREEK Idaho Fair 1962 7.8 m 15,500
SIDEHILL CANAL Idaho Good 2007 19.5 m 15,500
D LINE CANAL Idaho Fair 1961 8.5 m 15,500
SPOKANE R;PED/BIKE PATH Idaho Fair 1968 310.3 m 15,500
BLACKWELL SLOUGH Idaho Fair 1969 37.2 m 15,500
INDIAN CREEK Idaho Good 2009 15.5 m 15,500
SNAKE RIVER Idaho Good 2006 224.6 m 15,500
SE 9TH AVENUE GS Idaho Good 1961 7.3 m 15,500
INDIAN CREEK Idaho Fair 1953 7.9 m 15,250

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.