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
BUCKEYE CK Iowa Fair 1975 31.1 m 120
BLUE GRASS CREEK Iowa Fair 1993 35.7 m 120
PICKEREL RUN Iowa Fair 1990 8.2 m 120
OTTER CREEK Iowa Good 2014 37.5 m 120
BRANCH LITTLE SIOUX RVR Iowa Poor 1967 39.0 m 120
SHOAL CREEK Iowa Good 1987 39.0 m 120
COOPER CREEK Iowa Poor 1948 37.8 m 120
STREAM Iowa Fair 1970 7.6 m 120
STREAM Iowa Poor 1925 7.9 m 120
ROGERS CREEK Iowa Good 2012 22.9 m 120
NORFOLK CREEK Iowa Good 2017 39.6 m 120
WEST NISHNABOTNA RIVER Iowa Fair 1970 31.4 m 120
PINE CREEK Iowa Fair 1962 12.8 m 120
STREAM Iowa Good 1989 7.6 m 120
HOG RUN Iowa Fair 1975 8.2 m 120
FIELD STREAM Iowa Fair 1968 12.8 m 120
CREEK Iowa Good 2005 6.4 m 120
BELL BRANCH Iowa Fair 1957 17.1 m 120
CREEK Iowa Poor 1940 10.4 m 120
STREAM Iowa Poor 1970 23.8 m 120
MILL CREEK Iowa Good 2006 75.0 m 120
BLUE EARTH RIVER Iowa Good 2011 6.4 m 120
ELK RIVER Iowa Good 1992 39.0 m 120
DRAINAGE DITCH Iowa Good 2019 7.2 m 120
ROCK CREEK Iowa Good 2019 30.8 m 120
CREEK Iowa Fair 1961 7.3 m 120
PAINT CREEK Iowa Poor 1900 47.5 m 120
STREAM Iowa Good 2008 40.5 m 120
CREEK Iowa Fair 1979 7.9 m 120
WATERWAY Iowa Good 2018 33.5 m 120
SPRING CREEK Iowa Fair 1980 25.3 m 120
WATERWAY Iowa Good 2013 92.1 m 120
I-80 Iowa Fair 1966 69.2 m 120
W FK W NISHNABOTNA RVR Iowa Good 1969 38.7 m 120
MID. FK LITTLE MAQUOKETA Iowa Good 2006 34.1 m 120
WAPSINONOC CREEK Iowa Fair 1975 7.3 m 120
OTTER CREEK Iowa Fair 1970 15.9 m 120
CREEK Iowa Good 2004 39.0 m 120
W BR WAPSINONOC CREEK Iowa Fair 1981 31.1 m 120
WOLF CREEK Iowa Good 2014 39.6 m 120
BRANCH OF SPRING CREEK Iowa Good 2020 21.6 m 120
DRY CREEK Iowa Good 2004 39.6 m 120
SOUTH CEDAR CREEK Iowa Fair 1980 77.1 m 120
MIDDLE RIVER Iowa Poor 1940 25.0 m 120
WEST NODAWAY RIVER Iowa Good 2018 66.1 m 120
STREAM Iowa Fair 1955 37.2 m 120
MIDDLE RIVER Iowa Poor 1940 29.3 m 120
BALDWIN CREEK Iowa Fair 1975 7.3 m 120
DUCK CREEK Iowa Poor 1960 38.7 m 120
DUCK CREEK Iowa Poor 1900 15.5 m 120

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.