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
MUD CREEK Iowa Fair 1981 31.4 m 255
BR.BLACKHAWK CREEK Iowa Good 1986 7.6 m 255
EAST BLUE CREEK TRIB TO Iowa Good 2002 29.3 m 255
MILLER CREEK Iowa Poor 1965 38.1 m 255
MIDDLE NODAWAY RIVER Iowa Poor 1968 77.4 m 255
NODAWAY RIVER Iowa Good 2005 110.6 m 255
EAST BLUE CREEK Iowa Good 2002 21.9 m 255
UNNAMED STREAM Iowa Good 2019 7.6 m 255
MINERVA CREEK Iowa Fair 1981 10.7 m 255
BOYLAN CREEK Iowa Fair 2002 58.5 m 255
LITTLE SIOUX RIVER Iowa Good 2022 50.9 m 255
MINERVA CREEK Iowa Fair 1982 75.0 m 255
CREEK Iowa Poor 1942 6.4 m 255
OVER CNW RR Iowa Poor 1936 38.7 m 255
LITTLE TURKEY RIVER Iowa Poor 1960 54.4 m 255
SMALL STREAM Iowa Fair 1986 8.5 m 255
I-380 Iowa Good 1983 87.8 m 255
E OTTER CR Iowa Good 2005 39.0 m 255
TRIB W FORK CEDAR RIVER Iowa Poor 1966 9.1 m 255
LITTLE WAPSIPINICON RIVE Iowa Good 2023 58.5 m 254
MILL POND CREEK Iowa Good 2008 14.0 m 254
RIO GRANDE CREEK Iowa Fair 1966 17.4 m 254
WILDCAT GLEN Iowa Fair 1933 21.3 m 253
DRY RUN CREEK Iowa Good 2015 10.2 m 253
DEVIL CREEK Iowa Poor 1948 46.6 m 250
CREEK Iowa Fair 1970 46.6 m 250
VILLAGE CREEK Iowa Poor 1968 38.7 m 250
BEAVER CREEK Iowa Poor 1960 31.4 m 250
IOWA RIVER OVERFLOW Iowa Good 1998 13.7 m 250
NO FORK MAQUOKETA RIVER Iowa Good 2016 34.4 m 250
DUTCH CREEK Iowa Good 2016 50.9 m 250
SMALL Iowa Fair 1942 7.0 m 250
BEAVER CREEK Iowa Fair 1957 34.4 m 250
DEEP RIVER Iowa Good 2009 36.6 m 250
LONG CREEK Iowa Poor 1963 46.9 m 250
UNNAMED CREEK Iowa Good 2022 7.3 m 249
BNSF RR Iowa Good 2014 72.2 m 249
BOYER RIVER Iowa Good 1994 75.0 m 249
OVERFLOW ON BOYER RIVER Iowa Poor 1964 23.8 m 249
NO NAME CREEK Iowa Poor 1925 8.5 m 249
CREEK Iowa Good 2016 21.3 m 249
BEAVER CREEK Iowa Good 2005 23.8 m 249
STREAM Iowa Fair 1960 9.8 m 249
CLARK BRANCH Iowa Good 1994 31.4 m 249
PRAIRIE CREEK Iowa Fair 1972 39.5 m 249
FLOYD RIVER Iowa Good 2010 58.5 m 249
CREEK Iowa Poor 1976 10.4 m 249
DRAINAGE DITCH Iowa Good 2004 6.7 m 249
MIDDLE NODAWAY RIVER Iowa Good 1978 62.2 m 249
FOUR MILE CREEK Iowa Fair 1975 23.9 m 249

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.