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 DITCH 5 Iowa Fair 1965 30.5 m 750
STREAM Iowa Poor 1924 10.7 m 750
STREAM Iowa Fair 1956 37.2 m 750
WAPSIPINICON RIVER Iowa Poor 1965 195.7 m 750
W FORK CROOKED CR Iowa Good 1998 11.6 m 750
CUB CREEK Iowa Good 1994 9.1 m 750
STREAM Iowa Good 2016 7.9 m 750
SKUNK RIVER Iowa Fair 1984 148.1 m 750
WALNUT CREEK Iowa Poor 1967 50.0 m 750
DRAINAGE Iowa Good 1986 25.3 m 749
BR. UPPER IOWA RIVER Iowa Good 2002 11.3 m 749
DRAINAGE Iowa Good 1972 30.5 m 748
BRUSHSY CREEK Iowa Good 2004 46.9 m 748
DRAINAGE Iowa Good 2008 7.3 m 748
MCELHANEY CREEK Iowa Fair 1973 7.9 m 748
OTTER CREEK Iowa Good 2000 58.5 m 748
BEAMAN CREEK Iowa Fair 1900 13.1 m 748
WILLOW CREEK Iowa Fair 1968 39.0 m 748
SPRING CREEK Iowa Good 1974 30.5 m 748
STREAM-D.D.196 Iowa Poor 1900 9.8 m 748
SAYLOR CREEK Iowa Good 1997 7.0 m 748
PERRY CREEK Iowa Fair 1973 27.4 m 748
SMALL CREEK Iowa Good 2000 7.9 m 748
BRANCH LITTLE SIOUX RVR Iowa Good 2008 11.3 m 748
BROADHORN CREEK Iowa Good 2018 43.0 m 747
PAINTER CREEK Iowa Good 2007 39.0 m 747
S RIVER Iowa Good 2018 66.1 m 747
SMALL CREEK Iowa Fair 1985 11.5 m 746
TURTLE CREEK Iowa Fair 1930 19.2 m 746
CEDAR RIVER Iowa Good 1989 92.7 m 746
CASCADE LANDING Iowa Poor 1896 141.4 m 743
WHITE FOX CREEK Iowa Poor 1963 13.1 m 742
SMALL Iowa Good 2004 7.6 m 740
YELLOW RIVER N FORK Iowa Fair 1962 7.3 m 740
LICK CREEK Iowa Good 2010 31.4 m 740
YANKEE RUN CREEK Iowa Poor 1957 23.2 m 740
PLUM CREEK Iowa Fair 1957 13.4 m 740
US 30 EB TO IA 100 EB Iowa Good 2018 174.1 m 740
US 30 Iowa Good 2018 209.4 m 740
BRUSH CREEK Iowa Good 1975 9.1 m 739
PIERSON CREEK Iowa Fair 1993 27.7 m 738
WEST BRANCH Iowa Fair 1963 46.6 m 738
OCHEYEDAN RIVER Iowa Fair 1973 54.6 m 738
DRY RUN Iowa Fair 1954 7.9 m 738
CROOKED CREEK Iowa Fair 1985 53.3 m 737
IOWA RIVER Iowa Good 2021 59.4 m 737
IOWA RIVER OVERFLOW Iowa Good 2021 60.0 m 737
IOWA RIVER OVERFLOW Iowa Good 2021 72.2 m 737
SMALL NATURAL STREAM Iowa Poor 1935 6.4 m 737
HAUGH CREEK Iowa Good 2005 6.7 m 737

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.