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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
CRANE CREEK Iowa Good 1998 6.4 m 8,300
CEDAR RIVER Iowa Fair 1950 113.4 m 8,300
DRAINAGE DITCH Iowa Good 1982 10.4 m 8,300
NORTH SKUNK RIVER Iowa Fair 1969 66.4 m 8,300
DRY CREEK Iowa Fair 1979 6.4 m 8,300
MISSOURI RIVER Iowa Good 1986 577.6 m 8,300
HOOSIER CREEK Iowa Good 2023 7.3 m 8,292
WILLOW CREEK Iowa Good 2019 29.6 m 8,292
DRAINAGE DITCH #29 Iowa Good 1974 46.0 m 8,250
OVER ABAND RR Iowa Fair 1974 54.9 m 8,250
NORTH RIVER Iowa Fair 1996 88.7 m 8,250
DRAINAGE DITCH #29 Iowa Fair 1974 46.0 m 8,250
FINK CATTLE PASS Iowa Fair 1973 65.8 m 8,250
PIGEON CREEK Iowa Good 2004 111.6 m 8,250
PIGEON CREEK Iowa Good 2003 111.6 m 8,250
130TH ST Iowa Good 1973 47.2 m 8,250
130TH ST Iowa Good 1973 47.2 m 8,250
IOWA RIVER Iowa Good 1974 89.6 m 8,250
FINK CATTLE PASS Iowa Fair 1973 65.8 m 8,250
CO RD D-25 Iowa Fair 1974 43.6 m 8,250
IOWA RIVER Iowa Fair 1974 89.6 m 8,250
IOWAY CREEK Iowa Poor 1957 63.4 m 8,224
FLOYD RIVER Iowa Fair 2007 305.1 m 8,224
DUCK CREEK Iowa Fair 1980 50.9 m 8,200
NORTH RIVER Iowa Good 1983 88.7 m 8,200
STREAM Iowa Fair 1972 28.3 m 8,200
EAST OKOBOJI LAKE Iowa Fair 1939 19.5 m 8,200
I-29 Iowa Good 2009 73.8 m 8,200
DES MOINES RIVER Iowa Fair 1975 87.2 m 8,200
DRAINAGE DITCH Iowa Good 1979 7.7 m 8,200
DRY RUN CREEK Iowa Good 2016 9.6 m 8,200
MAD CREEK Iowa Fair 1972 56.1 m 8,200
WANATEE CREEK Iowa Fair 1980 11.0 m 8,192
CREEK Iowa Good 2001 7.0 m 8,166
F50 (OAK CREST HILL RD) Iowa Good 1983 73.5 m 8,150
RACOON RIVER FLEUR RR Iowa Good 2004 280.4 m 8,147
I 80 I 29 US 6 Iowa Good 2008 109.3 m 8,132
JOHNSON RUN CREEK Iowa Fair 1960 10.1 m 8,100
DRAINAGE DITCH Iowa Good 1967 10.4 m 8,100
GRANT CREEK Iowa Fair 1964 25.0 m 8,100
INDIAN CREEK Iowa Fair 1999 45.7 m 8,092
FLOYD RIVER Iowa Fair 1962 102.4 m 8,014
I-235 Iowa Good 2003 95.4 m 8,006
OVERFLOW Iowa Good 2022 12.1 m 8,000
E UNIVERSITY RAMP B Iowa Good 2004 158.2 m 8,000
FAWN CREEK Iowa Fair 1965 6.4 m 7,954
SR D25 Iowa Fair 1974 43.6 m 7,950
DES MOINES RIVER Iowa Poor 1976 253.0 m 7,911
MAD CREEK Iowa Fair 1986 30.5 m 7,906
MAQUOKETA RIVER Iowa Good 1991 141.4 m 7,900

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.