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
N. FORK LONG CREEK Iowa Poor 1925 12.8 m 160
SKUNK RIVER Iowa Fair 1986 164.0 m 160
COMPETINE CREEK Iowa Good 2021 15.2 m 160
LITTLE BEAR CREEK Iowa Fair 1963 7.0 m 160
SMALL Iowa Good 1987 6.7 m 160
STREAM Iowa Poor 1930 12.2 m 160
ST JOSEPH CREEK Iowa Good 1999 7.9 m 160
LITTLE FLINT CREEK Iowa Good 1998 10.7 m 160
CREEK Iowa Fair 1946 7.0 m 160
W BR WAPSIPINICON CREEK Iowa Good 2009 31.4 m 160
BR IOWA RIVER Iowa Good 2018 8.8 m 160
SALT CREEK Iowa Fair 2022 30.5 m 160
BIG CREEK Iowa Good 1989 66.1 m 160
MIDDLE MAQUOKETA RIVER Iowa Fair 1974 35.4 m 160
US 61 Iowa Fair 1970 94.2 m 160
CREEK Iowa Fair 1957 8.2 m 160
STREAM Iowa Good 1989 66.1 m 160
SMALL STREAM Iowa Good 2018 6.8 m 160
WALNUT CREEK Iowa Fair 1974 9.8 m 160
BITTER CREEK Iowa Good 2020 36.9 m 160
FOX RIVER Iowa Fair 1964 92.7 m 160
DD 30 SPRING CREEK Iowa Fair 1964 8.5 m 160
DRAINAGE Iowa Good 2004 47.2 m 160
U.S. 20 Iowa Good 1990 77.1 m 159
NISHNABOTNA RIVER Iowa Good 2013 95.1 m 159
NO NAME CREEK Iowa Good 1993 10.1 m 159
PERRY CREEK Iowa Fair 1940 9.8 m 159
JORDAN CREEK Iowa Poor 1958 44.2 m 159
MOSQUITO CREEK Iowa Fair 1970 47.2 m 159
SMALL STREAM Iowa Good 1985 7.9 m 159
ROCK RIVER Iowa Fair 1961 175.0 m 159
TRIB TO MUD CREEK Iowa Good 2000 6.4 m 159
WHISKEY CREEK Iowa Fair 1990 10.7 m 159
MILL CREEK Iowa Good 2008 58.2 m 159
WATERWAY Iowa Poor 1955 9.8 m 159
TARKIO CREEK Iowa Poor 1949 43.9 m 159
SOLDIER CREEK Iowa Poor 1949 55.8 m 159
UPPER SOLDIER RIVER Iowa Good 2011 46.9 m 159
WALNUT CREEK Iowa Good 1996 21.9 m 159
W BR BLUE EARTH RIVER Iowa Good 2016 37.1 m 159
MOSER CREEK Iowa Fair 1981 39.0 m 159
BROKEN KETTLE CREEK Iowa Poor 1960 45.7 m 159
SMALL STREAM Iowa Good 2007 7.0 m 159
BUFFALO CREEK Iowa Poor 1965 26.5 m 159
STREAM Iowa Fair 1963 6.7 m 159
BRUSHY CREEK Iowa Good 1993 23.8 m 159
BRUSHY CREEK SPILLWAY Iowa Good 1998 56.4 m 159
UNNAMED DRAINAGE Iowa Good 2015 9.8 m 159
LOTTS CREEK Iowa Fair 1966 39.3 m 159
I-80 Iowa Good 1965 69.2 m 159

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.