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
NO FORK ENGLISH RIVER	Iowa	Fair	1963	7.6 m	28,500
CREEK	Iowa	Fair	1975	8.2 m	28,500
DUCK CREEK AND BIKE PATH	Iowa	Fair	1971	97.5 m	28,450
DUCK CREEK AND BIKE PATH	Iowa	Fair	1971	97.5 m	28,450
FOUR MILE CREEK	Iowa	Good	2020	60.1 m	28,400
DRAINAGE DITCH	Iowa	Good	1967	6.7 m	28,300
MISSISSIPPI RIVER	Iowa	Good	2021	1,035.1 m	28,250
US 67 RR CITY STREETS	Iowa	Good	2021	692.4 m	28,250
US 67 DME RR CITY STS	Iowa	Good	2019	694.8 m	28,250
42ND ST	Iowa	Fair	1981	58.2 m	28,050
COW CREEK	Iowa	Fair	1936	9.6 m	28,000
W-60 & CRIC RR	Iowa	Fair	1971	115.8 m	27,900
W-60 & CIC RR	Iowa	Fair	1972	116.1 m	27,900
DRAINAGE DITCH	Iowa	Fair	1959	15.2 m	27,600
DRAINAGE DITCH	Iowa	Fair	1959	7.9 m	27,600
DRAINAGE DITCH	Iowa	Fair	1959	12.2 m	27,600
IOWA RIVER	Iowa	Fair	1957	98.8 m	27,600
RALSTON CREEK	Iowa	Fair	1957	10.1 m	27,600
OVER UP RR	Iowa	Fair	1966	50.0 m	27,550
IOWA RIVER	Iowa	Fair	1972	130.8 m	27,200
SMALL CREEK	Iowa	Good	2003	6.4 m	27,200
IOWA RIVER	Iowa	Fair	1972	130.8 m	27,200
CLEAR CREEK	Iowa	Good	1998	64.9 m	27,200
DRAINAGE DITCH	Iowa	Fair	1966	7.3 m	27,200
DRAINAGE DITCH	Iowa	Good	1983	11.3 m	27,000
STREAM	Iowa	Good	1965	7.3 m	26,900
I 29 & IA 12 NB	Iowa	Good	2012	47.2 m	26,900
OVER UP RR	Iowa	Fair	1966	50.0 m	26,850
IAIS RR	Iowa	Good	2021	69.2 m	26,550
US 6	Iowa	Good	2021	87.5 m	26,550
US 6	Iowa	Good	2022	87.5 m	26,550
IAIS RR	Iowa	Good	2022	69.2 m	26,550
MISS RVR RR & IA 461	Iowa	Poor	1940	1,174.7 m	26,500
IMRL RR	Iowa	Fair	1963	45.7 m	26,250
E 1ST STREET	Iowa	Good	2019	72.2 m	26,200
5TH AVE SW	Iowa	Fair	1975	82.0 m	26,000
CIC RR & 8TH AVE	Iowa	Fair	1975	194.5 m	26,000
5TH AVE SW	Iowa	Fair	1975	81.4 m	26,000
IA 922	Iowa	Fair	1979	662.0 m	26,000
PLUNGER CREEK	Iowa	Fair	1959	9.8 m	25,900
NORTH RIVER	Iowa	Fair	1958	17.7 m	25,900
WALNUT CREEK	Iowa	Good	1969	75.0 m	25,900
IA 965/CORAL RIDGE AVE	Iowa	Fair	1963	69.2 m	25,850
E 1ST STREET	Iowa	Good	2020	72.2 m	25,550
UP RR	Iowa	Good	2006	68.9 m	25,550
UP RR	Iowa	Good	2006	68.0 m	25,550
GRAND AVE	Iowa	Fair	2013	87.5 m	25,300
IAIS RR	Iowa	Good	2013	60.1 m	25,300
MISSOURI RVR RD RR	Iowa	Good	2010	756.8 m	25,250
IA 965/CORAL RIDGE AVE	Iowa	Fair	1963	69.2 m	25,150

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.