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
SOUTH FORK IOWA RIVER Iowa Poor 1964 39.0 m 373
U.S. 20 Iowa Fair 1970 82.3 m 373
BRANCH YELLOW RIVER Iowa Poor 1922 6.7 m 373
BEAVER CREEK NORTH FORK Iowa Fair 1990 8.8 m 373
WOLF CREEK BRANCH Iowa Poor 1972 9.8 m 373
WEST FORK CEDAR RIVER Iowa Poor 1970 150.0 m 373
SMALL STREAM Iowa Poor 1970 31.4 m 373
SMALL STREAM Iowa Poor 1969 23.5 m 373
WEST FORK CEDAR RIVER Iowa Fair 1959 106.1 m 373
STREAM Iowa Fair 1967 10.1 m 373
STREAM Iowa Good 2015 7.9 m 373
CREEK Iowa Poor 1900 6.7 m 373
HONEY CREEK Iowa Poor 1967 26.8 m 373
DRAINAGE Iowa Good 2007 12.2 m 373
HONEY CREEK Iowa Good 2020 8.8 m 373
DRAINAGE Iowa Good 2006 7.6 m 373
SINK CREEK Iowa Poor 1900 6.1 m 373
RICOCHET CREEK Iowa Good 2001 8.7 m 373
W BR BUFFALO CR Iowa Good 2003 34.4 m 373
TRIB TO BRUSH CREEK Iowa Good 2020 9.8 m 372
WAPSIPINICON RIVER Iowa Good 2020 129.8 m 371
LYTLE CREEK Iowa Good 1994 50.3 m 370
LAMALEES CREEK Iowa Good 1996 13.4 m 370
SOLFERINO CREEK Iowa Good 1978 9.4 m 370
FOX RIVER Iowa Fair 1984 62.2 m 370
BR LOST CREEK Iowa Fair 1992 11.0 m 370
STREAM Iowa Fair 1962 6.4 m 370
MIDDLE CREEK Iowa Fair 1990 31.4 m 370
OVER UP RR Iowa Poor 1961 46.6 m 370
CEDAR CREEK Iowa Fair 2000 31.4 m 370
N SKUNK RIVER OVERFLOW Iowa Poor 1961 54.3 m 370
N SKUNK RIVER Iowa Poor 1966 61.6 m 370
OTTER CREEK Iowa Fair 1993 11.6 m 370
CREEK Iowa Fair 1993 7.6 m 370
COAL CREEK Iowa Good 2015 29.9 m 370
SUGAR CREEK Iowa Good 1985 58.5 m 370
BONNELL CREEK Iowa Poor 1949 31.1 m 370
ROCK CREEK Iowa Poor 1985 31.4 m 370
MIDDLE FORK GRAND RIVER Iowa Fair 1989 44.5 m 370
LITTLE MEADOW CK Iowa Fair 1989 8.2 m 369
UNNAMED CREEK Iowa Good 2012 7.6 m 369
LITTLE ROCK RIVER Iowa Poor 1955 61.0 m 369
UNNAMED CREEK Iowa Poor 1900 7.0 m 369
BRANCH MAPLE RIVER Iowa Poor 1970 23.5 m 369
LINN CR Iowa Poor 1956 33.5 m 369
NO NAME CREEK Iowa Good 1973 22.9 m 369
BIG CREEK Iowa Good 2011 46.0 m 369
BEAVER CREEK Iowa Poor 1973 27.7 m 369
MONTGOMERY CREEK Iowa Good 2014 10.8 m 369
KANARANZI CREEK Iowa Poor 1959 61.6 m 369

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.