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 2000 13.4 m 4,665
DRAINAGE DITCH Iowa Good 1993 28.3 m 4,660
COOPER CREK Iowa Good 2023 47.8 m 4,660
PIGEON CR AND UP RR Iowa Fair 2005 390.4 m 4,660
LITTLE SOAP CREEK Iowa Fair 1964 67.4 m 4,660
OVER ABANDON RR Iowa Fair 1965 45.7 m 4,660
OVER IAIS RR Iowa Good 1999 52.1 m 4,651
2ND ST NE Iowa Fair 1979 179.2 m 4,650
WEST BR SUGAR CREEK Iowa Good 2003 69.5 m 4,650
SUGAR CREEK Iowa Good 2005 36.0 m 4,650
SUGAR CREEK Iowa Good 2005 36.0 m 4,650
BEAR CREEK Iowa Good 2013 60.0 m 4,650
BEAR CREEK Iowa Good 2009 37.5 m 4,650
IA 137 Iowa Good 2004 65.8 m 4,650
AITCHISON ROAD Iowa Good 2002 46.9 m 4,650
SUGAR CREEK Iowa Good 2003 36.9 m 4,650
UPRR Iowa Good 1999 64.6 m 4,650
OVER UP RR Iowa Good 1990 64.6 m 4,650
S. FK IOWA RIVER Iowa Good 1990 52.1 m 4,650
SOUTH FORK IOWA RIVER Iowa Good 1999 52.1 m 4,650
BEE BRANCH Iowa Good 2017 27.7 m 4,648
WORRELL CREEK Iowa Good 2010 11.6 m 4,647
WALNUT CREEK Iowa Fair 2010 9.0 m 4,647
MIDDLE SOUTH CREEK Iowa Good 2002 34.4 m 4,643
BLACK HAWK CREEK Iowa Fair 1949 39.0 m 4,635
DRAINAGE Iowa Fair 1992 18.3 m 4,635
OVER IAIS RR Iowa Fair 1979 67.7 m 4,620
I-80 Iowa Fair 1960 66.4 m 4,610
CROW CREEK Iowa Good 1999 42.1 m 4,610
MISSISSIPPI BLVD Iowa Good 2019 42.0 m 4,610
US 218 Iowa Fair 1983 125.0 m 4,601
DRAINAGE Iowa Good 1996 40.5 m 4,600
DRAINAGE Iowa Good 1996 40.5 m 4,600
PRAIRIE CREEK Iowa Fair 1967 43.9 m 4,600
US 218 T44 Iowa Good 2022 52.4 m 4,600
SILVER CREEK Iowa Good 1996 25.3 m 4,600
W FK LITTLE SIOUX RIVER Iowa Good 2015 68.0 m 4,600
PRAIRIE CREEK Iowa Good 1996 44.8 m 4,600
COMSTOCK CREEK Iowa Fair 1988 25.3 m 4,600
SILVER CREEK Iowa Good 1996 25.3 m 4,600
NO NAME CREEK Iowa Good 2001 44.2 m 4,594
STREAM Iowa Good 1939 6.4 m 4,590
IA 163 Iowa Good 1997 69.8 m 4,580
I-80 Iowa Good 1963 71.3 m 4,576
LITTLE SIOUX RIVER Iowa Fair 1973 107.9 m 4,570
ABBE CREEK Iowa Good 2016 7.8 m 4,570
LITTLE BEAVER CREEK Iowa Good 2009 10.3 m 4,570
SOUTH EXPRESSWAY Iowa Good 2020 89.0 m 4,570
LITTLE MOSQUITO CREEK Iowa Good 2003 12.2 m 4,558
T 19 Iowa Fair 2003 53.0 m 4,550

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.