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
TRIB TO BEAVER CREEK Iowa Good 1994 11.9 m 854
I-380 Iowa Fair 1984 121.6 m 854
SMALL NATURAL STREAM Iowa Poor 1948 13.4 m 854
SMALL NATURAL STREAM Iowa Poor 1947 9.4 m 854
CAMP CREEK Iowa Fair 1957 32.6 m 852
DRAINAGE DITCH 5 Iowa Good 2013 7.9 m 851
BLACKHAWK CREEK Iowa Fair 1960 7.0 m 851
WILLOW CREEK Iowa Good 1993 57.6 m 851
OTTER CREEK Iowa Good 1978 54.3 m 850
IA 163 Iowa Good 1997 69.9 m 850
COON CREEK Iowa Good 1992 8.8 m 850
US 63 Iowa Good 2005 133.8 m 850
BUCKEYE CREEK Iowa Fair 1960 6.4 m 850
BUCKEYE CREEK Iowa Fair 1960 7.6 m 850
STERN CREEK Iowa Fair 1987 23.8 m 850
DRY CREEK Iowa Fair 1988 22.3 m 850
SUGAR CREEK Iowa Good 1991 10.4 m 850
NORTH SOAP CREEK Iowa Poor 1968 55.5 m 850
SOUTH SOAP CREEK Iowa Fair 1990 46.9 m 850
SMALL STREAM Iowa Good 2001 7.6 m 850
BEAVER CREEK Iowa Fair 1987 23.8 m 848
BOYER RIVER Iowa Poor 1956 31.4 m 848
WHISKEY CREEK Iowa Good 1997 38.1 m 848
BOYER RIVER Iowa Good 2010 7.9 m 848
CREEK Iowa Fair 1976 10.1 m 848
LITTLE MAPLE RIVER Iowa Fair 1974 6.1 m 848
WEST NISHNABOTNA RIVER Iowa Good 2011 37.6 m 847
STREAM Iowa Good 1950 7.3 m 847
WEST NISHNABOTNA RIVER Iowa Fair 1977 15.2 m 847
E NISHNABOTNA RIVER Iowa Fair 1977 113.1 m 847
OVER BNSF RR Iowa Good 2008 53.3 m 847
OVER BNSF RR Iowa Fair 2009 231.6 m 847
ABBE CREEK Iowa Fair 1960 37.2 m 845
TRIB TO CEDAR RIVER Iowa Good 2017 28.3 m 845
DUGOUT CREEK Iowa Poor 1970 27.7 m 843
AURELIA CREEK Iowa Poor 1939 10.7 m 841
SMALL STREAM Iowa Fair 1969 17.1 m 840
DEEP CREEK Iowa Fair 1976 24.1 m 840
PRAIRIE CREEK Iowa Fair 1973 27.4 m 840
DRAINAGE Iowa Fair 1986 17.7 m 840
SMOKEY HOLLOW CREEK Iowa Good 2001 21.6 m 840
HAIGHT CREEK Iowa Fair 1978 7.9 m 840
DRAINAGE DITCH 2 Iowa Poor 1969 23.5 m 840
SPRING CREEK Iowa Fair 1986 11.9 m 840
BULL RUN CREEK Iowa Fair 1960 54.3 m 838
LITTLE SIOUX RVR W FORK Iowa Good 2008 33.5 m 838
LOST ISLAND LAKE Iowa Good 2021 17.7 m 838
BULL RUN Iowa Good 1995 34.4 m 838
SNAKE CREEK Iowa Poor 1962 32.3 m 837
I-80 Iowa Fair 1965 69.2 m 837

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.