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
SMALL STREAM Iowa Good 2019 22.3 m 805
WATERWAY Iowa Good 2015 7.6 m 805
OTTER CREEK Iowa Fair 2001 47.9 m 805
TROUT CREEK Iowa Good 2003 47.2 m 805
SMALL STREAM Iowa Good 2016 7.3 m 805
DRAINAGE DITCH Iowa Poor 1948 6.4 m 803
RAILROAD CREEK Iowa Poor 1900 13.1 m 803
SEWER CREEK Iowa Fair 1989 27.7 m 800
SILVER CREEK WEST Iowa Fair 1968 31.1 m 800
PLATTE RIVER Iowa Poor 1976 37.5 m 800
MUD CREEK Iowa Good 1977 47.2 m 800
SPRING CREEK Iowa Fair 1978 8.8 m 800
PIGEON CREEK Iowa Good 1978 61.3 m 800
BRANCH SIX MILE CREEK Iowa Good 1978 6.4 m 800
BRANCH SIX MILE CREEK Iowa Fair 1978 7.0 m 800
DRAINAGE DITCH Iowa Fair 1957 9.8 m 800
BEAR CREEK Iowa Good 1962 68.6 m 800
PRAIRIE CREEK Iowa Good 2000 62.2 m 800
BRANCH SIX MILE CREEK Iowa Fair 1978 7.6 m 800
FRENCH CREEK Iowa Poor 1962 23.8 m 800
SIX MILE CREEK Iowa Fair 1978 9.4 m 800
TURKEY RIVER Iowa Good 2002 134.7 m 799
LONG DICK CREEK Iowa Good 2000 6.4 m 797
LITTLE SIOUX RIVER Iowa Good 2006 124.7 m 797
WILLOW CREEK Iowa Fair 1968 22.9 m 797
ELLIOTT CREEK Iowa Poor 1958 6.4 m 797
MCCREATH CREEK Iowa Fair 1953 8.8 m 797
WATERMAN CREEK Iowa Good 1953 46.6 m 797
OTTER CREEK Iowa Poor 1931 11.6 m 797
OTTER CREEK Iowa Good 1985 7.6 m 797
OTTER CREEK Iowa Fair 1931 10.4 m 797
MUD CREEK Iowa Fair 1968 53.3 m 796
UNNAMED CREEK Iowa Good 1969 10.1 m 795
SMALL STREAM Iowa Fair 1987 10.1 m 795
PLUM CREEK Iowa Good 2021 31.4 m 795
SPRING CREEK Iowa Fair 1988 11.6 m 795
CREEK Iowa Fair 1973 9.1 m 795
DRAINAGE Iowa Good 2019 8.7 m 794
DRAINAGE DITCH #4 Iowa Good 2000 11.6 m 792
I-80 Iowa Fair 1962 66.4 m 790
COULEE CREEK Iowa Fair 1989 43.6 m 790
NATURAL CREEK Iowa Fair 1990 47.2 m 790
MOSQUITO CREEK Iowa Fair 1991 58.5 m 790
MOSQUITO CREEK Iowa Fair 1991 78.0 m 790
STREAM Iowa Fair 1941 6.4 m 790
SOLDIER CREEK Iowa Poor 1999 27.7 m 790
VOLGA RIVER OVERFLOW Iowa Good 1989 38.1 m 790
VOLGA RIVER Iowa Fair 1989 88.4 m 790
DEER CREEK Iowa Fair 1994 8.2 m 790
VOLGA RIVER Iowa Good 1989 34.7 m 790

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.