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
LONG CREEK Iowa Fair 1985 54.0 m 123
EAST NISHNABOTNA RIVER Iowa Poor 1900 61.3 m 123
SEVERS CREEK Iowa Poor 1951 17.4 m 123
SHELL ROCK RIVER Iowa Fair 1959 27.4 m 123
DD #28 Iowa Fair 1979 9.8 m 123
LITTLE MEADOWS Iowa Fair 1999 8.2 m 123
STREAM Iowa Fair 1975 9.8 m 123
STREAM Iowa Fair 1900 9.8 m 123
BUFFALO CREEK Iowa Fair 1980 24.4 m 123
SMALL CREEK Iowa Fair 2007 6.7 m 123
W FORK NODAWAY RIVER Iowa Good 2021 69.9 m 123
STREAM Iowa Good 2013 7.6 m 123
BOYER RIVER Iowa Poor 1900 44.5 m 123
DRAINAGE DITCH #34 Iowa Good 2001 9.4 m 123
CREEK Iowa Poor 1916 7.6 m 123
CREEK Iowa Poor 1972 9.8 m 122
SMALL STREAM Iowa Good 2001 12.2 m 122
NICHOLSON CREEK Iowa Fair 1982 8.2 m 122
CAMP CR Iowa Fair 1974 21.3 m 122
BRANCH OF CROOKED CREEK Iowa Fair 1984 11.9 m 122
FRINK CREEK Iowa Fair 1976 9.1 m 121
CLEAR CREEK Iowa Good 2017 39.7 m 121
DRAINAGE Iowa Poor 1985 9.8 m 121
BOYER RIVER Iowa Fair 1949 46.3 m 121
NATURE TRAIL & CK Iowa Good 2015 6.4 m 121
PONY CREEK Iowa Fair 1970 31.4 m 121
MOSQUITO CREEK Iowa Good 2016 54.7 m 121
IAIS RR Iowa Good 2003 59.8 m 120
LIME CREEK Iowa Good 2013 7.6 m 120
CAMP CREEK Iowa Fair 1968 25.0 m 120
MARTINS CR Iowa Poor 1972 9.4 m 120
DRAINAGE DITCH Iowa Good 2017 10.9 m 120
PLUM CREEK Iowa Poor 1954 39.0 m 120
RACOON RIVER Iowa Poor 1920 52.1 m 120
WEST BRANCH FLOYD RIVER Iowa Good 1983 46.0 m 120
SMALL STREAM Iowa Good 1985 9.4 m 120
BEAR CREEK Iowa Poor 1955 10.1 m 120
SS #98 Iowa Poor 1973 8.2 m 120
PITMAN CREEK Iowa Poor 1975 8.5 m 120
LITTLE SOAP CREEK Iowa Good 2002 39.0 m 120
SUGAR CREEK Iowa Fair 1985 54.9 m 120
WEST TARKIO RIVER Iowa Poor 1952 39.0 m 120
SILVER CREEK Iowa Good 1978 75.3 m 120
NISHNABOTNA TRIB Iowa Fair 1959 39.0 m 120
BR BIG CEDAR CK DD #29 Iowa Poor 1966 13.7 m 120
SMALL Iowa Fair 1910 6.4 m 120
STREAM Iowa Poor 1981 9.8 m 120
DRAINAGE Iowa Good 2016 7.9 m 120
CEDAR CREEK Iowa Fair 1957 9.8 m 120
SPRING CREEK Iowa Poor 1965 17.4 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.