Browse Bridge Database

23,716 bridges in the FHWA National Bridge Inventory in Iowa.

National Bridge Inventory Database

Browse 23,716 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
IA 175	Iowa	Fair	1966	76.8 m	11,850
IA 175	Iowa	Fair	1966	76.8 m	11,850
MAHOGANY ROAD	Iowa	Good	1968	43.3 m	11,850
SE 6TH AVE	Iowa	Good	1997	77.4 m	11,850
MAHOGANY ROAD	Iowa	Fair	1968	48.5 m	11,850
INDIAN CREEK	Iowa	Good	2014	108.0 m	11,800
INDIAN CREEK	Iowa	Good	2013	108.0 m	11,800
CUNNINGHAM DR	Iowa	Good	1978	49.7 m	11,800
CEDAR RIVER	Iowa	Good	2022	347.5 m	11,750
DUCK CREEK	Iowa	Good	2015	42.9 m	11,750
CEDAR RIVER	Iowa	Fair	1975	347.8 m	11,750
570TH ST	Iowa	Fair	1966	35.1 m	11,750
DUCK CREEK	Iowa	Fair	1972	38.7 m	11,750
PLEASANT RUN	Iowa	Fair	1975	48.5 m	11,750
PLEASANT RUN	Iowa	Good	2002	50.6 m	11,750
570TH ST	Iowa	Fair	1966	35.1 m	11,750
GENEVA CREEK	Iowa	Fair	1980	22.9 m	11,716
JORDAN CREEK	Iowa	Fair	1984	18.6 m	11,678
IOWAY CREEK	Iowa	Fair	1970	70.1 m	11,666
MELROSE AV	Iowa	Fair	1983	93.9 m	11,650
770TH STREET	Iowa	Fair	1958	49.4 m	11,650
770TH STREET	Iowa	Fair	1958	49.4 m	11,650
CLANTON CREEK	Iowa	Good	2007	147.2 m	11,600
MIDDLE RIVER	Iowa	Good	2017	102.7 m	11,600
SUNNYBROOK DR	Iowa	Fair	1978	48.5 m	11,600
BUCK CK & BUCK CK RD	Iowa	Fair	1965	52.1 m	11,600
BUCK CK & BUCK CK RD	Iowa	Fair	1965	52.1 m	11,600
I-235	Iowa	Good	2003	66.8 m	11,600
SUNNYBROOK DR	Iowa	Fair	1978	48.5 m	11,600
VANDALIA ROAD & BNSF RR	Iowa	Good	1997	126.2 m	11,600
EAST NISHNABOTNA RIVER	Iowa	Good	2009	81.4 m	11,550
HESS RD	Iowa	Fair	1983	58.2 m	11,550
EAST NISHNABOTNA RIVER	Iowa	Good	2008	81.4 m	11,550
TROUBLESOME CREEK	Iowa	Good	2003	71.0 m	11,500
CEDAR RIVER & IANR RR	Iowa	Good	2016	574.6 m	11,500
DRAINAGE DITCH	Iowa	Fair	1957	6.7 m	11,500
STREAM	Iowa	Good	1996	7.9 m	11,500
BIKE PATH & TRAIL	Iowa	Fair	1971	66.8 m	11,500
TROUBLESOME CREEK	Iowa	Good	2003	71.0 m	11,500
CROOKED CREED	Iowa	Good	2011	61.7 m	11,500
CROOKED CREEK	Iowa	Good	2011	61.7 m	11,500
SB US 63	Iowa	Good	1991	64.6 m	11,500
NORTH WALNUT CREEK	Iowa	Good	1983	26.2 m	11,490
SR N-28	Iowa	Fair	1959	46.9 m	11,450
US 63 SERGEANT RD TRAIL	Iowa	Good	1983	118.3 m	11,450
SR (N-28)	Iowa	Good	1959	46.9 m	11,450
US 63 SERGEANT RD TRAIL	Iowa	Fair	1983	118.3 m	11,450
JORDON CREEK	Iowa	Fair	1990	7.0 m	11,432
MIDDLE RIVER	Iowa	Good	2014	102.7 m	11,400
CLANTON CREEK	Iowa	Good	2007	146.3 m	11,400

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.