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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.

Clear
BridgeLocationConditionYear BuiltLengthADT
W FK FLOYD RIVER Iowa Fair 1956 74.1 m 10,400
MIDDLE FORK CATFISH CRK Iowa Fair 1985 87.8 m 10,390
FRENCH CREEK Iowa Fair 1983 10.7 m 10,382
WILLOW CREEK Iowa Fair 1972 40.5 m 10,300
US 6 Iowa Good 1993 84.7 m 10,300
UPRR Iowa Good 1998 74.1 m 10,300
NB US 63 Iowa Fair 1991 129.8 m 10,300
OVER CC RR & BIKE TRAIL Iowa Fair 1982 53.0 m 10,300
STREAM Iowa Good 1990 7.6 m 10,300
US 218 Iowa Fair 1983 81.1 m 10,300
HONEY CREEK Iowa Good 2009 55.8 m 10,300
HONEY CREEK Iowa Good 2009 55.8 m 10,300
NE 46TH AVE Iowa Good 1994 98.1 m 10,300
CREEK Iowa Good 2007 8.8 m 10,300
CEDAR RIVER & RR Iowa Poor 1969 202.4 m 10,268
JORDAN CREEK Iowa Fair 1996 17.7 m 10,266
WAPSIPINICON RIVER Iowa Fair 1917 78.0 m 10,258
OLD MAN CREEK OVERFLOW Iowa Fair 1983 31.4 m 10,250
NORTH RIVER Iowa Good 2013 106.4 m 10,250
UPRR Iowa Good 2002 67.4 m 10,233
DRAINAGE Iowa Good 1983 8.7 m 10,200
IANR RR TX ST CEDAR RVR Iowa Fair 1983 469.4 m 10,200
STREAM Iowa Fair 2001 10.4 m 10,200
GOOSE CREEK Iowa Poor 1978 24.7 m 10,200
BRUSH CREEK Iowa Good 1995 13.4 m 10,200
MOSQUITO CK II RR PATH Iowa Good 2016 321.9 m 10,200
DRAINAGE Iowa Fair 1980 9.8 m 10,200
US 218 Iowa Fair 1983 81.1 m 10,200
I-80 Iowa Fair 1962 68.9 m 10,192
CEDAR RIVER Iowa Good 1977 127.4 m 10,190
CEDAR RIVER Iowa Fair 1977 152.4 m 10,190
PRAIRIE CREEK Iowa Fair 1979 58.8 m 10,184
OVER UP RR Iowa Fair 1980 50.3 m 10,184
UP RR Iowa Fair 2005 200.6 m 10,174
SOUTH RIVER Iowa Good 2012 74.2 m 10,150
SOUTH EXPRESSWAY Iowa Good 2017 89.0 m 10,100
STREAM Iowa Fair 1988 29.9 m 10,100
SAYLORVILLE RESERVOIR Iowa Fair 1973 1,503.6 m 10,100
DRAINAGE DITCH Iowa Fair 1980 7.9 m 10,100
DRAINAGE DITCH Iowa Good 1980 6.4 m 10,100
BROWN CREEK Iowa Fair 1988 9.8 m 10,100
SOUTH EXPRESSWAY Iowa Good 2020 89.0 m 10,100
MISSISSIPPI RIVER IA 76 Iowa Fair 1974 780.6 m 10,100
US 30 Iowa Fair 1980 89.9 m 10,090
N WALNUT CREEK Iowa Fair 1960 15.5 m 10,078
BOYER RIVER Iowa Fair 1958 126.2 m 10,050
BOYER RIVER Iowa Fair 1958 126.2 m 10,050
NORTH RIVER Iowa Fair 1970 99.1 m 10,050
WILLOW CREEK Iowa Good 2000 6.7 m 10,001
IA 376 & UP RR Iowa Fair 1976 107.6 m 10,000

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.