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.

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BridgeLocationConditionYear BuiltLengthADT
DRAINAGE Iowa Fair 1957 7.0 m 320
DRAINAGE DITCH 12 Iowa Fair 1967 31.4 m 320
BUCKEYE CREEK Iowa Good 2006 27.4 m 320
SMALL STREAM Iowa Fair 1950 6.4 m 320
MUD CREEK Iowa Fair 1967 31.1 m 320
N SKUNK RIVER Iowa Good 1991 74.1 m 320
SMALL CREEK Iowa Good 2018 15.5 m 320
NORTH ENGLISH RIVER Iowa Good 2002 65.2 m 320
IOWA RIVER Iowa Poor 1959 59.1 m 320
MIDDLE CREEK Iowa Good 1991 46.0 m 320
BR W FORK CEDAR RIVER Iowa Good 2004 8.2 m 320
DEVILS RUN Iowa Fair 1975 11.9 m 320
OVERFLOW IOWA RIVER Iowa Poor 1900 12.8 m 320
CREEK Iowa Fair 1968 14.9 m 320
DRAINAGE DITCH Iowa Poor 1960 16.8 m 319
CREEK Iowa Fair 1994 6.4 m 319
OTTER CREEK Iowa Poor 1969 31.4 m 319
BRANCH OTTER CREEK Iowa Fair 1972 27.4 m 319
I-29 Iowa Fair 1966 66.8 m 319
CREEK Iowa Poor 1959 8.2 m 319
STREAM Iowa Fair 1969 17.4 m 319
SILVER CREEK Iowa Fair 1969 46.9 m 319
CLEGHORN DD Iowa Good 2002 10.4 m 319
RUTT BRANCH Iowa Good 2009 7.3 m 319
LITTLE SIOUX RIVER Iowa Fair 1966 86.0 m 319
BRANCH BADGER CREEK Iowa Good 2021 36.9 m 319
RACOON RIVER Iowa Fair 1970 61.9 m 319
UNNAMED CREEK Iowa Good 2022 6.7 m 319
BACON CREEK Iowa Good 2021 11.6 m 319
SPRING VALLEY CREEK Iowa Fair 1960 40.2 m 319
HALFWAY CREEK Iowa Fair 1973 31.4 m 319
D D Iowa Fair 1996 6.4 m 319
PRAIRE CREEK Iowa Poor 1996 27.7 m 319
OTTER CREEK Iowa Fair 1974 6.4 m 319
INDIAN CREEK Iowa Good 1984 39.0 m 319
DYE CREEK Iowa Fair 1967 9.8 m 319
PERRY CREEK Iowa Good 2006 38.1 m 319
LONG BRANCH Iowa Good 2012 7.6 m 319
MILL CREEK Iowa Good 2019 83.5 m 319
GREY CREEK Iowa Poor 1970 23.5 m 319
BEAR CREEK Iowa Fair 1966 23.5 m 319
WILLOW CREEK Iowa Fair 1967 13.1 m 319
OTTER CREEK Iowa Fair 1974 6.4 m 319
WEST NISHNABOTNA RIVER Iowa Good 1985 50.9 m 319
DYE CREEK Iowa Fair 1967 9.8 m 319
RUTT BRANCH Iowa Fair 1994 8.5 m 319
CREEK Iowa Good 1997 7.3 m 319
LITTLE SIOUX Iowa Poor 1969 30.8 m 319
STONY CREEK Iowa Poor 1990 31.4 m 315
LITTLE SIOUX RIVER Iowa Good 2003 57.6 m 315

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.