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
WB I-235 & WB I-80	Iowa	Good	2007	66.4 m	21,600
CEDAR RVR & TRAIL	Iowa	Fair	1989	252.4 m	21,500
CALMUS CREEK	Iowa	Fair	1970	8.2 m	21,400
US 30	Iowa	Fair	1975	81.4 m	21,400
GOOSE CREEK	Iowa	Fair	1978	28.3 m	21,325
DRAINAGE DITCH	Iowa	Good	1982	10.7 m	21,300
PIERCE ST FRONTAGE RD	Iowa	Fair	2018	58.5 m	21,100
WB I-235 & WB I-80	Iowa	Good	2007	66.4 m	21,050
NB I-35 & EB I-80	Iowa	Good	2007	66.4 m	21,050
NB I-35 & EB I-80	Iowa	Good	2007	66.4 m	21,050
DRAINAGE DITCH	Iowa	Fair	1958	7.6 m	21,000
BROAD HORN CREEK	Iowa	Fair	1957	15.2 m	21,000
BR DRY RUN CREEK	Iowa	Good	1993	10.1 m	20,900
INDIAN CREEK	Iowa	Fair	1994	62.8 m	20,679
DRAINAGE DITCH	Iowa	Good	2022	7.3 m	20,600
DRAINAGE DITCH	Iowa	Good	2022	7.9 m	20,600
BNSF RVR STS & IA 376	Iowa	Poor	1936	1,210.1 m	20,600
DRAINAGE DITCH	Iowa	Good	2022	10.4 m	20,600
DRAINAGE DITCH	Iowa	Good	1972	7.6 m	20,600
DRAINAGE DITCH	Iowa	Fair	1937	11.0 m	20,500
N WALNUT CREEK&BIKE PATH	Iowa	Fair	1969	31.4 m	20,500
MISSISSIPPI RIVER ISLAND	Iowa	Fair	1982	899.2 m	20,400
GOOSE CREEK	Iowa	Fair	1972	8.8 m	20,100
IANR RR TX ST CEDAR RVR	Iowa	Fair	1983	465.4 m	19,950
DUCK CREEK	Iowa	Fair	1961	39.0 m	19,700
FULSOM LAKE OUTLET	Iowa	Good	2010	6.7 m	19,700
N WALNUT CREEK	Iowa	Fair	1968	15.5 m	19,687
ABANDON RR	Iowa	Fair	1962	53.0 m	19,500
US 6 (SPRUCE HILLS)	Iowa	Fair	1971	66.8 m	19,450
SOUTH EXPRESSWAY	Iowa	Good	2017	89.0 m	19,400
SOUTH EXPRESSWAY	Iowa	Good	2019	89.0 m	19,400
INDIAN CREEK	Iowa	Good	2018	78.3 m	19,400
INDIAN CREEK	Iowa	Good	2017	78.3 m	19,400
SOUTH RACCOON RIVER	Iowa	Fair	1966	124.4 m	19,100
I29 RR LANGDON BLVD	Iowa	Good	2017	1,023.5 m	19,100
NORTH RACCOON RIVER	Iowa	Fair	1966	159.4 m	19,100
SUGAR CREEK	Iowa	Good	2024	81.5 m	19,000
DRAINAGE DITCH	Iowa	Fair	1949	15.9 m	19,000
BACON CREEK	Iowa	Fair	2014	180.3 m	18,900
BACON CREEK	Iowa	Fair	2016	180.3 m	18,900
CHESLEA CREEK	Iowa	Good	2010	12.2 m	18,800
SOUTH RACCOON RIVER	Iowa	Fair	1966	124.4 m	18,750
NORTH RACCOON RIVER	Iowa	Fair	1966	159.4 m	18,750
DRAINAGE DITCH	Iowa	Good	2012	8.8 m	18,700
SUGAR CREEK	Iowa	Good	2024	81.4 m	18,650
DME RR	Iowa	Fair	1981	104.9 m	18,650
DRAINAGE DITCH	Iowa	Fair	1957	10.7 m	18,600
CEDAR RIVER	Iowa	Good	2009	362.2 m	18,600
IA 100	Iowa	Good	2016	39.2 m	18,581
INDIAN CREEK	Iowa	Fair	1981	6.7 m	18,500

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.