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.

Bridge	Location	Condition	Year Built	Length	ADT
STC 1702;WOODRUFF RD.IC	Idaho	Fair	1975	41.5 m	6,500
STC 1702;WOODRUFF RD.IC	Idaho	Fair	1975	41.5 m	6,500
STC 1755; ARIMO RD.IC	Idaho	Good	2022	32.9 m	6,500
STC 1755;ARIMO RD.IC	Idaho	Good	2022	33.5 m	6,500
DEER FLAT NAMPA CANAL	Idaho	Fair	1992	7.6 m	6,500
NEW YORK CANAL	Idaho	Good	2018	36.4 m	6,500
I 84 EB-WB;PARMA IC	Idaho	Fair	1964	64.6 m	6,500
BUFFALO RIVER;PONDS BR.	Idaho	Fair	1975	54.9 m	6,500
HENRYS FK. SNAKE RIVER	Idaho	Fair	1975	54.9 m	6,500
HENRYS LAKE OUTLET	Idaho	Fair	1987	18.3 m	6,500
BOISE RVR SLOUGH;RAMP	Idaho	Good	1991	76.8 m	6,500
LAKE FORK CREEK	Idaho	Fair	1985	29.0 m	6,500
RIDENBAUGH CANAL	Idaho	Fair	1978	15.2 m	6,500
UPRR (DOVER BRIDGE)	Idaho	Good	2012	371.6 m	6,400
NPRR;CLEARWATER RIVER	Idaho	Fair	1962	374.9 m	6,400
BNRR;POST FALLS RAMP OP	Idaho	Fair	1977	53.0 m	6,400
PARADISE CREEK	Idaho	Poor	1992	8.8 m	6,400
HENRYS FK. SNAKE RIVER	Idaho	Good	2001	77.7 m	6,400
SPOKANE R.;POST FALLS BR	Idaho	Fair	1971	274.3 m	6,400
I 90; POINTE PARKWAY IC	Idaho	Good	2012	72.8 m	6,400
B-4 CANAL	Idaho	Fair	2001	15.5 m	6,300
TRAIL CREEK	Idaho	Fair	1965	7.0 m	6,300
BIG WOOD RIVER	Idaho	Fair	1972	21.9 m	6,300
DANSKIN CANAL	Idaho	Good	2019	20.1 m	6,300
SAMARIA ROAD GS	Idaho	Fair	1975	34.4 m	6,250
SAMARIA ROAD GS	Idaho	Good	1975	34.4 m	6,250
TWO MILE RD.GS	Idaho	Fair	1975	37.2 m	6,250
TWO MILE RD.GS	Idaho	Fair	1975	37.2 m	6,250
SH 38;MALAD CITY IC	Idaho	Fair	1975	39.9 m	6,250
SH 38;MALAD CITY IC	Idaho	Fair	1975	39.9 m	6,250
ROBIN RD GS	Idaho	Good	1964	41.1 m	6,250
ROBIN RD GS	Idaho	Good	1964	41.1 m	6,250
S.FK.COEUR DALENE RIVER	Idaho	Fair	1969	58.8 m	6,250
S.FK.COEUR DALENE RIVER	Idaho	Fair	1969	58.2 m	6,250
I 84B EB-WB;BURLEY IC	Idaho	Fair	1961	78.9 m	6,250
I 84B EB-WB;BURLEY IC	Idaho	Fair	1961	78.9 m	6,250
STC 5766;JOHNSON ST.GS	Idaho	Fair	1969	30.5 m	6,250
STC 5766;JOHNSON ST.GS	Idaho	Fair	1969	30.5 m	6,250
I 90B;THIRD ST.IC	Idaho	Fair	1969	31.4 m	6,250
I 90B;THIRD ST.IC	Idaho	Fair	1969	31.4 m	6,250
TRAIL CREEK;VICTOR BR	Idaho	Fair	1996	6.7 m	6,200
TEN MILE CREEK	Idaho	Good	1961	7.0 m	6,200
PHYLLIS CANAL	Idaho	Fair	1967	7.9 m	6,200
RIDENBAUGH CANAL	Idaho	Fair	1988	16.5 m	6,100
CALF CREEK	Idaho	Fair	2006	7.9 m	6,100
FIVE MILE CREEK	Idaho	Fair	1930	8.8 m	6,100
CDA PARKING GARAGE	Idaho	Fair	2014	265.5 m	6,049
SH 40;DOWNEY IC	Idaho	Fair	1971	49.4 m	6,000
SH 40;DOWNEY IC	Idaho	Fair	1971	49.4 m	6,000
BOISE VRT CENTER	Idaho	Good	2016	43.9 m	6,000

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.