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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
15TH & 16TH AVE SW Iowa Fair 1975 148.4 m 34,450
CITY STREETS UP &CCP RR Iowa Fair 1979 448.1 m 34,350
GUTHRIE AVE Iowa Fair 2006 54.3 m 33,900
GUTHRIE AVE Iowa Good 2006 54.3 m 33,900
CLEAR CREEK Iowa Good 1963 6.4 m 33,800
BN RR SCOTT AVE& MLK PKW Iowa Fair 1937 428.9 m 33,600
N BRANCH CATFISH CREEK Iowa Fair 1939 11.6 m 33,600
DRAINAGE DITCH Iowa Fair 1959 10.4 m 33,400
STREAM Iowa Fair 1963 14.0 m 33,000
IOWA RIVER Iowa Good 1960 131.7 m 32,900
DRAINAGE-ALL OF ROADWAY Iowa Fair 1957 15.9 m 32,900
42ND ST Iowa Fair 1981 58.2 m 32,850
YEADER CREEK Iowa Good 1984 13.3 m 32,600
DEER CREEK Iowa Good 1970 10.1 m 32,400
CC RR & ASH PIT Iowa Fair 1979 537.4 m 32,300
PANTHER CREEK Iowa Good 1965 6.4 m 32,100
IOWA RIVER Iowa Good 1960 131.7 m 32,050
CITY STS CCP& UP RR Iowa Fair 1979 450.8 m 31,850
DRAINAGE DITCH Iowa Fair 1963 14.0 m 31,600
MISSOURI RIVER RD & RR Iowa Fair 1972 752.2 m 31,550
CROW CREEK Iowa Fair 1963 15.9 m 31,400
OVER UP RR Iowa Good 1974 90.5 m 31,400
CIC RR & CITY ST Iowa Fair 1975 172.8 m 31,400
OVER UP RR Iowa Fair 1974 90.5 m 31,400
NO NAME CREEK Iowa Fair 1963 9.8 m 31,400
CIC RR & CITY ST Iowa Fair 1975 172.8 m 31,400
LITTLE MOSQUITO CREEK Iowa Fair 1966 12.2 m 31,100
DES MOINES RIVER Iowa Fair 1936 231.0 m 31,100
OVER US 6 & IAIS RR Iowa Fair 1992 171.9 m 31,000
OVER US 6 & IAIS RR Iowa Fair 1995 174.3 m 31,000
CIC RAILWAY Iowa Fair 1963 53.0 m 30,600
CIC RAILWAY Iowa Fair 1963 53.0 m 30,600
DRAINAGE DITCH Iowa Fair 1961 9.8 m 30,500
ELK CREEK Iowa Fair 1961 11.9 m 30,500
STREAM Iowa Fair 1962 7.3 m 30,300
CIC RR & 8TH AVE Iowa Fair 1973 194.5 m 30,200
OLD MANS CREEK Iowa Fair 1962 12.8 m 30,100
UNIVERSITY AVE Iowa Good 2005 310.6 m 29,900
STREAM Iowa Good 1961 6.7 m 29,700
RACCOON RIVER Iowa Fair 2003 199.9 m 29,550
BEAR CREEK Iowa Good 1965 6.4 m 29,500
CROW CREEK Iowa Good 1981 7.9 m 29,300
FOUR MILE CREEK Iowa Good 2018 60.1 m 29,150
QUARRY LAKE & WYTH RD Iowa Fair 1989 230.4 m 29,000
I-35 & I-80 Iowa Good 1984 71.6 m 28,914
RACCOON RIVER Iowa Good 2002 199.9 m 28,800
IA 922 Iowa Fair 1979 699.8 m 28,800
33RD AVE Iowa Fair 1974 52.1 m 28,600
33RD AVE Iowa Fair 1974 52.1 m 28,600
CREEK Iowa Fair 1975 8.2 m 28,500

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.