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
SPILLWAY Iowa Fair 1935 19.5 m 400
BUTTRICKS CREEK Iowa Fair 1971 31.4 m 399
CREEK Iowa Poor 1939 13.6 m 399
MIDDLE MILL CREEK Iowa Fair 1988 7.9 m 399
DRY RUN Iowa Fair 1988 27.7 m 399
RAT CREEK Iowa Fair 1971 11.0 m 399
CLEAR CREEK Iowa Fair 1959 12.8 m 399
BRUSHY CREEK Iowa Good 2014 58.5 m 399
SOUTH RACCOON RIVER Iowa Good 2020 11.9 m 399
LIZARD CREEK Iowa Fair 1970 24.4 m 399
ROCK RIVER Iowa Poor 1970 106.1 m 399
EAST IOWA RIVER Iowa Good 1957 44.2 m 399
EAST IOWA RIVER Iowa Good 2007 39.0 m 399
CREEK Iowa Fair 1965 8.8 m 399
E.BR.WOLF CREEK Iowa Fair 1992 11.0 m 399
WOLF CREEK Iowa Good 2009 39.0 m 399
WOLF CREEK Iowa Good 2010 46.6 m 399
I-29 Iowa Fair 1972 81.7 m 399
CREEK Iowa Fair 1969 9.8 m 399
PILOT CREEK (DD#63) Iowa Fair 1986 23.8 m 399
NORTH LIZARD CREEK Iowa Fair 1986 23.8 m 399
I-35 Iowa Good 1966 66.4 m 399
E FORK E NODAWAY RIVER Iowa Good 2008 40.5 m 399
EAST NODAWAY RIVER Iowa Poor 1955 54.6 m 399
W FORK LITTLE SIOUX Iowa Good 2002 11.6 m 399
WILLOW CREEK Iowa Good 2009 36.6 m 399
INDIAN CREEK Iowa Good 1998 56.1 m 399
RAPID CR Iowa Poor 1960 12.2 m 398
CLANTON CREEK Iowa Good 2023 58.5 m 397
OTTER CREEK Iowa Fair 1979 36.6 m 397
LITTLE SIOUX RIVER Iowa Good 1987 88.7 m 396
MONONA-HARRISON DITCH Iowa Good 2004 66.1 m 396
ELK CREEK Iowa Good 2019 43.2 m 396
CASTLE HILL CREEK Iowa Fair 1986 7.9 m 395
SMALL STREAM Iowa Good 2003 27.7 m 393
BRANCH BEAVER CREEK Iowa Poor 1966 18.9 m 393
TEN MILE CREEK Iowa Fair 2005 16.2 m 393
DEER CREEK Iowa Fair 1972 23.8 m 393
DRAINAGE DITCH Iowa Fair 1971 23.8 m 393
DRAINAGE DITCH Iowa Fair 1971 7.6 m 393
BREWER CREEK Iowa Good 1996 17.7 m 393
UPPER IOWA Iowa Poor 1950 76.8 m 393
UPPER IOWA Iowa Poor 1949 16.2 m 393
UPPER IOWA Iowa Poor 1949 25.3 m 393
UPPER IOWA Iowa Poor 1950 7.6 m 393
WAPSIPINICON RIVER Iowa Fair 1950 98.1 m 393
UPPER IOWA Iowa Good 2014 90.5 m 393
BRUSH CREEK Iowa Poor 1927 24.4 m 393
I-35 Iowa Fair 1972 95.7 m 393
SPRING CREEK Iowa Good 2006 27.4 m 393

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.