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
LITTLE RIVER Iowa Fair 1979 7.6 m 428
LITTLE RIVER Iowa Fair 1979 7.6 m 428
CREEK Iowa Good 2003 7.6 m 428
CREEK Iowa Good 2003 10.1 m 428
RAINES BRANCH Iowa Fair 1951 47.2 m 428
DRAINAGE DITCH #38 Iowa Good 2019 11.4 m 426
CREEK Iowa Fair 1929 6.4 m 424
ROCK RUN Iowa Fair 1940 12.2 m 424
SUGAR CREEK Iowa Good 2015 7.9 m 423
DRAINAGE Iowa Good 2001 46.6 m 423
SMALL CREEK Iowa Fair 1971 7.3 m 422
BR LITTLE BEAR CREEK Iowa Poor 1929 11.6 m 422
TURKEY RIVER Iowa Good 1994 57.6 m 422
WILD CAT CREEK Iowa Fair 1993 39.0 m 422
SOUTH TURKEY Iowa Fair 1966 19.2 m 422
W FORK CEDAR RIVER Iowa Fair 1987 84.7 m 422
DRAINAGE DITCH Iowa Good 1986 6.4 m 422
SMALL STREAM Iowa Fair 1965 9.1 m 422
SMALL CREEK Iowa Fair 1980 7.3 m 422
BIG CEDAR RIVER Iowa Fair 1963 108.5 m 422
DRAINAGE DITCH Iowa Fair 1928 6.7 m 422
BRANCH YELLOW RIVER Iowa Fair 1959 12.2 m 422
BRANCH YELLOW RIVER Iowa Fair 1959 46.9 m 422
BRANCH YELLOW RIVER Iowa Fair 1959 10.4 m 422
BRANCH YELLOW RIVER Iowa Fair 1959 7.9 m 422
WELDON RIVER Iowa Poor 1957 54.0 m 421
JONATHAN CREEK Iowa Good 2003 35.4 m 421
SOUTH WYACONDAH DITCH Iowa Poor 1974 46.0 m 420
N WYACONDAH CREEK Iowa Fair 1965 7.6 m 420
SUGAR CREEK Iowa Good 2008 43.0 m 420
COTA CREEK Iowa Good 2021 33.5 m 420
STREAM Iowa Good 2024 9.8 m 420
SMALL STREAM Iowa Fair 1965 10.1 m 420
LITTLE CEDAR CREEK Iowa Good 1993 31.4 m 420
SMALL STREAM Iowa Good 1992 7.9 m 420
STREAM Iowa Good 2011 7.6 m 420
DRAINAGE Iowa Good 2011 39.9 m 420
LITTLE SIOUX RIVER Iowa Fair 1988 129.8 m 419
PRAIRIE CREEK Iowa Fair 1982 23.3 m 419
E FORK DES MOINES RIVER Iowa Good 2022 46.0 m 419
W FORK DES MOINES RIVER Iowa Good 2012 71.0 m 419
DRY CREEK Iowa Fair 1964 38.1 m 419
ANSON CREEK Iowa Poor 1979 11.0 m 418
SMALL STREAM Iowa Poor 1938 6.4 m 417
DRAINAGE DITCH Iowa Good 1988 11.3 m 417
KIDDS CREEK Iowa Fair 1968 6.4 m 417
W NISHNABOTNA Iowa Fair 1960 91.4 m 417
DRAINAGE Iowa Fair 1961 9.1 m 417
STREAM Iowa Fair 1977 7.6 m 417
SMALL STREAM Iowa Fair 1937 9.8 m 417

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.