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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.

Clear
BridgeLocationConditionYear BuiltLengthADT
MIDDLE RD Iowa Fair 1971 57.3 m 25,050
MIDDLE RD Iowa Fair 1971 57.3 m 25,050
MIDDLE RIVER Iowa Fair 1958 15.5 m 24,800
DRAINAGE DITCH Iowa Fair 1958 9.8 m 24,800
DRAINAGE DITCH Iowa Good 1957 8.5 m 24,700
IAIS RR Iowa Good 2014 60.1 m 24,650
GRAND AVE Iowa Good 2014 87.5 m 24,650
IOWAY CREEK Iowa Good 1924 64.6 m 24,600
WALNUT CREEK Iowa Fair 1970 50.7 m 24,581
US 65 Iowa Fair 2012 96.3 m 24,500
SUGAR CREEK Iowa Fair 1966 62.2 m 24,500
I-35 Iowa Fair 1966 79.9 m 24,250
MISSISSIPPI RIVER & ROAD Iowa Fair 1970 1,278.0 m 24,200
LAKE OVERFLOW Iowa Fair 1972 11.6 m 24,200
DME RR Iowa Good 1971 62.2 m 24,200
SOUTH SKUNK RIVER Iowa Good 2018 115.1 m 24,150
BIKE PATH Iowa Fair 1964 44.2 m 24,150
SUGAR CREEK Iowa Fair 1966 62.2 m 24,050
US 65 Iowa Good 2014 96.3 m 23,900
I-80 & I-29 INTERCHANGE Iowa Good 2014 662.6 m 23,900
BEDELL CREEK Iowa Fair 1965 7.3 m 23,800
NE 36TH ST Iowa Good 2011 77.7 m 23,750
NE 36TH ST Iowa Good 2011 77.7 m 23,750
WORRELL CREEK Iowa Good 1971 11.9 m 23,700
IOWA 25 Iowa Fair 1958 65.2 m 23,600
STREAM Iowa Fair 1965 12.2 m 23,600
CLEAR CREEK Iowa Good 1969 45.7 m 23,500
CAMP CREEK Iowa Fair 1965 11.3 m 23,500
SOUTH SKUNK RIVER Iowa Good 2017 115.1 m 23,300
I-235 Iowa Good 2004 68.3 m 23,300
FOUR MILE CREEK Iowa Fair 1975 78.0 m 23,300
STREAM Iowa Fair 1958 8.5 m 23,300
BIKE PATH Iowa Fair 1964 44.2 m 23,300
BROADWAY ST Iowa Fair 1989 106.7 m 23,100
AIRPORT BLVD Iowa Fair 1989 73.5 m 23,100
DRAINAGE DITCH Iowa Fair 1966 7.3 m 23,000
DRAINAGE DITCH Iowa Fair 1959 7.0 m 23,000
DRY RUN CREEK Iowa Fair 1975 53.0 m 23,000
SILVER CREEK Iowa Fair 1983 37.5 m 22,700
I-35 Iowa Fair 1986 77.1 m 22,700
STREAM Iowa Fair 1965 10.1 m 22,600
DRAINAGE DITCH Iowa Fair 1975 10.1 m 22,500
I 35 WEST JCT Iowa Fair 1966 78.6 m 22,500
STREAM Iowa Fair 1965 8.2 m 22,400
CREEK Iowa Fair 1960 7.3 m 22,400
DES MOINES RIVER Iowa Fair 1933 184.1 m 22,400
PEOSTA CHL & CITY ST Iowa Fair 1991 1,228.3 m 22,300
US 30 Iowa Fair 1975 81.4 m 21,900
I-235 Iowa Good 2003 92.1 m 21,800
WB I-235 & WB I-80 Iowa Good 2007 66.4 m 21,600

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.