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 Iowa Fair 1967 28.0 m 7,300
MAIN DITCH NO.6 Iowa Fair 1972 54.6 m 7,300
BNSF RR & MAIN ST Iowa Fair 1972 113.1 m 7,300
I-380 Iowa Good 1972 81.7 m 7,300
BNSF RR & MAIN ST Iowa Fair 1972 113.1 m 7,300
TIMBER CREEK Iowa Good 1996 58.5 m 7,300
SOLDIER RIVER Iowa Fair 1967 93.3 m 7,300
DRAINAGE DITCH Iowa Fair 1967 28.0 m 7,300
SOLDIER RIVER Iowa Fair 1967 93.3 m 7,300
MAIN DITCH NO.6 Iowa Fair 1972 54.6 m 7,300
STORM CREEK Iowa Fair 1955 37.2 m 7,300
CEDAR RIVER Iowa Fair 1967 192.0 m 7,280
RALSTON CREEK Iowa Fair 1979 13.1 m 7,256
RACCOON RIVER Iowa Good 2005 196.0 m 7,253
CLEAR CREEK Iowa Good 1984 11.6 m 7,253
NB FLEUR RAMP Iowa Good 2004 37.8 m 7,253
RACCOON R & TRAIL Iowa Fair 1915 243.5 m 7,253
LITTLE SIOUX RIVER Iowa Fair 1967 179.2 m 7,250
STREAM Iowa Good 1970 6.7 m 7,250
CLEGHORN CREEK Iowa Good 2012 37.6 m 7,250
CLEGHORN CREEK Iowa Good 2011 37.6 m 7,250
310TH STREET Iowa Fair 1970 43.0 m 7,250
DRAINAGE DITCH Iowa Fair 1966 96.3 m 7,250
DRAINAGE DITCH Iowa Fair 1966 96.3 m 7,250
LITTLE SIOUX RIVER Iowa Fair 1967 179.2 m 7,250
PRAIRIE CREEK Iowa Good 2022 28.3 m 7,205
INDIAN CREEK Iowa Good 2010 62.3 m 7,200
STREAM Iowa Fair 1947 9.1 m 7,200
RAILROAD CREEK Iowa Fair 1973 11.9 m 7,200
UPRR Iowa Good 2003 78.6 m 7,200
DRAINAGE DITCH Iowa Good 1988 8.2 m 7,200
WAPSIPINICON RIVER Iowa Fair 2002 133.5 m 7,200
SUGAR CREEK Iowa Fair 2001 8.8 m 7,200
STREAM Iowa Good 1990 7.0 m 7,193
INDIAN CREEK Iowa Fair 1969 54.6 m 7,169
WANATEE CREEK Iowa Fair 1969 28.7 m 7,169
CC RR Iowa Fair 1999 45.4 m 7,158
EAST BIG CREEK Iowa Fair 1961 46.3 m 7,150
RALSTON CREEK N. BRANCH Iowa Fair 1984 8.5 m 7,143
DRAINAGE DITCH Iowa Fair 1958 7.0 m 7,100
310TH ST Iowa Fair 1970 54.0 m 7,100
STREAM Iowa Fair 1970 8.2 m 7,100
STREAM Iowa Fair 1970 6.7 m 7,100
W FORK DES MOINES RIVER Iowa Fair 1997 102.4 m 7,100
MISSOURI RIVER Iowa Good 2014 1,000.4 m 7,100
DRAINAGE DITCH Iowa Good 1957 6.4 m 7,100
INDIAN CREEK Iowa Good 2008 98.5 m 7,094
INDIAN CREEK Iowa Good 2001 54.9 m 7,094
WILLOW CREEK Iowa Fair 1963 33.5 m 7,094
PERRY CREEK CONDUIT Iowa Good 2013 23.9 m 7,065

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.