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
WAPSIPINICON RIVER Iowa Fair 1954 92.4 m 344
SMALL STREAM Iowa Fair 1950 7.9 m 344
W BR PINE CREEK Iowa Fair 1977 31.4 m 344
HOWARD CREEK Iowa Fair 1983 31.4 m 344
SO BRANCH SALT CREEK Iowa Poor 1996 12.5 m 344
LITTLE WAPSI RIVER Iowa Good 1968 43.9 m 344
STOE CREEK Iowa Fair 1971 31.4 m 344
SAYLOR CREEK Iowa Good 2013 6.4 m 344
SALT CREEK Iowa Poor 1965 23.8 m 344
LINDSEY CREEK Iowa Fair 1991 35.4 m 344
HONEY CREEK Iowa Good 2022 39.9 m 344
SMALL STREAM Iowa Fair 1956 7.0 m 342
SO BR RALSTON CREEK Iowa Poor 1957 6.7 m 341
BRANDY WINE CREEK Iowa Fair 1966 6.4 m 340
BIG BEAR CREEK Iowa Good 2002 39.0 m 340
SUGAR CREEK Iowa Poor 1968 46.9 m 340
STEIN CREEK Iowa Good 2015 11.9 m 340
DRAINAGE Iowa Good 2006 28.3 m 340
CEDAR CREEK Iowa Poor 1957 77.4 m 340
LYNN CREEK Iowa Poor 1964 23.8 m 340
DRAINAGE DITCH Iowa Good 1993 6.4 m 340
CATFISH CREEK Iowa Fair 2002 41.5 m 340
LITTLE BEAR CREEK Iowa Poor 1912 12.2 m 340
HONEY CREEK Iowa Fair 1987 26.8 m 340
STREAM Iowa Fair 1900 7.0 m 340
BEAVER CREEK Iowa Good 2003 61.3 m 340
CREEK Iowa Good 2019 9.1 m 340
SMALL STREAM Iowa Fair 1974 6.7 m 340
IA 92 Iowa Fair 1978 176.5 m 340
SMALL STREAM Iowa Good 2013 25.3 m 339
DRY RUN CREEK Iowa Fair 1970 6.7 m 339
TRULINER CREEK Iowa Fair 1958 40.8 m 339
NORTH BUFFALO CREEK Iowa Good 2009 36.8 m 339
DRAINAGE DITCH #90 Iowa Fair 1993 24.1 m 339
DD Iowa Fair 1925 10.4 m 339
NORTH BUFFALO CREEK Iowa Good 2010 33.9 m 339
NORTH BUFFALO CREEK Iowa Good 2009 33.9 m 339
LITTLE SIOUX RIVER Iowa Good 2021 128.8 m 339
DD NO 69 Iowa Poor 1974 31.4 m 339
DD NO 69 Iowa Fair 1974 23.8 m 339
CALAMUS CREEK Iowa Good 2015 33.7 m 339
BLACK CAT CREEK Iowa Good 2020 39.9 m 339
CREEK Iowa Poor 1964 21.3 m 339
SMALL CREEK Iowa Fair 1962 6.4 m 339
CALAMUS CREEK Iowa Good 2018 31.8 m 339
MINNIE BROOK Iowa Good 1977 30.5 m 339
CALAMUS CREEK Iowa Good 2018 28.5 m 339
CALAMUS CREEK Iowa Good 2016 27.7 m 339
OTTER CREEK Iowa Good 2017 62.2 m 338
W NODAWAY RIVER Iowa Fair 1987 75.0 m 338

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.