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
I-35 Iowa Fair 1958 61.3 m 649
WINNEBAGO RIVER Iowa Fair 1968 38.7 m 649
NO NAME CREEK Iowa Fair 1967 22.9 m 649
OTTER CREEK Iowa Good 2020 78.3 m 649
SMALL NATURAL STREAM Iowa Poor 1940 8.5 m 649
INDIAN CREEK Iowa Poor 1967 22.9 m 649
TRULINER CREEK Iowa Fair 1937 9.1 m 649
CREEK Iowa Good 2008 31.4 m 649
SMALL CREEK Iowa Good 2009 7.0 m 649
BIG CEDAR CREEK Iowa Fair 1964 46.3 m 649
CATFISH CREEK Iowa Fair 2018 7.6 m 648
TRIB TO PRAIRIE CREEK Iowa Good 2022 11.8 m 648
CRANE CREEK Iowa Fair 1951 46.3 m 648
BRANCH IOWA RIVER Iowa Good 2022 9.8 m 648
BEAR CREEK Iowa Poor 1951 47.2 m 648
SPRING CREEK Iowa Good 1985 7.6 m 648
BRANCH UPPER IOWA RIVER Iowa Fair 1930 6.7 m 648
CHESALEA CREEK Iowa Good 1989 13.7 m 644
CHESLEA CREEK Iowa Fair 1989 25.3 m 644
MOSQUITO CREEK Iowa Fair 1980 70.1 m 644
SMALL NATURAL STREAM Iowa Poor 1959 9.4 m 643
BR OF FOUR MI CR Iowa Good 2019 21.6 m 643
OSCAR CREEK Iowa Poor 1917 7.9 m 640
NORTH ENGLISH RIVER Iowa Fair 1997 39.3 m 640
SMALL STREAM Iowa Good 2015 11.6 m 640
DEEP RIVER Iowa Fair 1997 27.7 m 640
SUGAR CREEK Iowa Poor 1960 7.0 m 640
HICORY CREEK Iowa Good 2010 21.3 m 640
US 52 Iowa Good 2017 86.9 m 640
SMALL STREAM Iowa Good 2009 10.4 m 640
CROOKED CREEK Iowa Good 2007 34.4 m 640
E. FORK CROOKED CREEK Iowa Good 2003 41.5 m 640
SOAP CREEK Iowa Poor 1956 61.3 m 640
DRAINAGE DITCH Iowa Poor 1959 29.0 m 639
SMALL STREAM Iowa Good 2024 7.0 m 639
SMALL STREAM Iowa Good 2019 9.6 m 638
SOUTH CEDAR CREEK Iowa Fair 2009 39.6 m 638
PLUM CREEK Iowa Good 2002 7.9 m 638
LITTLE WAPSIPINICON Iowa Good 1995 39.6 m 638
LITTLE WAPSIPINICON Iowa Good 2009 10.4 m 638
I-80 Iowa Fair 1959 73.2 m 638
WAPSIPINICON RIVER Iowa Good 2023 62.3 m 638
INLET CREEK Iowa Good 1987 7.9 m 638
STREAM Iowa Poor 1966 13.1 m 638
SMALL STREAM Iowa Good 1990 23.8 m 638
BRUSHY FORK CREEK Iowa Fair 1968 21.9 m 638
STREAM Iowa Good 1998 6.4 m 638
MIDDLE MINERVA CREEK Iowa Fair 1973 11.0 m 638
BRUSHY FORK CREEK Iowa Good 1990 27.7 m 638
SPRING CREEK Iowa Good 2022 7.6 m 638

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.