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
STREAM Iowa Fair 1951 7.6 m 3,030
EAST PIGEON CREEK Iowa Fair 1982 7.6 m 3,030
LITTLE WAP RIVER OVRFLW Iowa Good 2001 34.4 m 3,030
OLD FLOYD RIVER CHANNEL Iowa Good 1990 42.7 m 3,022
COMPETINE CREEK Iowa Fair 1925 6.4 m 3,020
SCATTER CREEK Iowa Fair 1925 7.3 m 3,020
BOYER RIVER Iowa Fair 1959 99.1 m 3,020
DRAINAGE DITCH Iowa Fair 1985 7.6 m 3,020
IOWA RIVER Iowa Fair 2022 95.1 m 3,020
WALNUT CREEK Iowa Fair 1975 7.6 m 3,018
BR PRAIRIE CREEK Iowa Fair 1953 7.6 m 3,015
INDIAN CREEK Iowa Poor 1935 13.4 m 3,013
MID FK CATFISH CREEK Iowa Fair 1998 7.6 m 3,011
I-80 Iowa Good 1961 64.0 m 3,010
STREAM Iowa Fair 1924 8.2 m 3,000
DRAINAGE DITCH Iowa Fair 1948 9.4 m 3,000
LAKE AVENUE Iowa Good 2006 70.7 m 3,000
BRANCH RACCOON RIVER Iowa Fair 1996 6.4 m 3,000
100TH STREET Iowa Good 2007 54.3 m 3,000
DME RR Iowa Good 2007 74.1 m 3,000
IA 2 Iowa Good 2002 60.4 m 3,000
LAKE AVENUE Iowa Good 2006 70.7 m 3,000
DRAINAGE DITCH Iowa Fair 1973 6.4 m 3,000
STREAM Iowa Good 1996 6.4 m 3,000
NORTH R OVERFLOW CHANNEL Iowa Fair 1986 84.1 m 2,998
NORTH RIVER Iowa Fair 1986 23.8 m 2,998
W FORK FLOYD RIVER Iowa Fair 1967 39.0 m 2,992
CREEK Iowa Good 1965 11.0 m 2,992
SMALL Iowa Fair 1900 6.7 m 2,992
OCHEYDON RIVER OVERFLOW Iowa Good 1987 25.3 m 2,990
OCHEYEDAN RIVER Iowa Good 2014 46.0 m 2,990
CEDAR RIVER Iowa Good 1992 112.8 m 2,990
SUGAR CREEK Iowa Good 2013 14.6 m 2,990
US 69 (GRAND AVE.) Iowa Fair 1938 27.4 m 2,986
ROGERS CREEK Iowa Good 2007 11.0 m 2,981
I-29 Iowa Poor 1959 64.0 m 2,980
BOONE RIVER Iowa Fair 1959 28.0 m 2,980
BRANCH BOONE RIVER Iowa Fair 1959 25.0 m 2,980
BIG SUGAR CREEK Iowa Poor 1979 88.7 m 2,980
I-80 Iowa Fair 1959 68.9 m 2,978
IOWA RIVER Iowa Good 2014 84.8 m 2,970
E NODAWAY RIVER & BNSF R Iowa Fair 1964 253.3 m 2,970
IOWA RIVER OVERFLOW Iowa Good 2014 11.6 m 2,970
STREAM Iowa Good 2008 11.9 m 2,970
TURKEY RIVER OVERFLOW Iowa Good 2006 39.6 m 2,970
DRAINAGE Iowa Fair 1993 13.4 m 2,967
ROCK RIVER OVERFLOW Iowa Fair 1950 69.2 m 2,963
ROCK RIVER Iowa Good 2017 124.7 m 2,963
US 61 Iowa Fair 1981 83.2 m 2,963
OTTER CREEK Iowa Good 1983 37.5 m 2,960

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.