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
BUFFALO CREEK Iowa Fair 1973 7.6 m 350
N OIERSON CREEK Iowa Fair 1974 15.2 m 350
SMALL CREEK Iowa Fair 1978 11.6 m 350
LITTLE OCHEYEDAN RIVER Iowa Fair 1986 39.0 m 350
MIDDLE MAQUOKETA RIVER Iowa Fair 1974 47.2 m 350
BLOOD RUN CREEK Iowa Fair 1971 39.0 m 350
LOTTS CREEK Iowa Good 1996 39.0 m 350
LITTLE SIOUX RIVER Iowa Fair 1981 126.5 m 350
CREEK Iowa Poor 1971 6.7 m 350
SOLDIER RIVER Iowa Poor 1971 35.4 m 350
SOLDIER RIVER Iowa Poor 1955 92.7 m 349
BRANCH NODAWAY RIVER Iowa Fair 2008 30.5 m 349
SMALL STREAM Iowa Good 2020 6.4 m 349
E BIG CREEK Iowa Fair 1973 31.4 m 349
SOUTH RIVER Iowa Poor 1936 46.6 m 349
BROWN BRANCH Iowa Poor 1965 31.4 m 349
NISHNABOTNA RIVER Iowa Good 1986 98.5 m 349
BUCK CREEK Iowa Fair 1962 38.7 m 349
GRIFFIN CREEK Iowa Fair 1962 30.8 m 349
BRANCH OF NODAWAY RVR Iowa Good 2013 6.3 m 349
SMALL STREAM Iowa Fair 1962 7.3 m 349
EAST 102 RIVER Iowa Fair 1940 46.6 m 349
SMALL STREAM Iowa Good 1987 9.1 m 349
ORNERY CREEK Iowa Fair 1956 44.5 m 349
DRAINAGE Iowa Poor 1940 7.3 m 349
SMALL STREAM Iowa Fair 1992 6.4 m 349
BRANCH OF SILVER CREEK Iowa Fair 1961 31.4 m 349
SILVER CREEK Iowa Good 2016 46.9 m 349
DRAINAGE Iowa Fair 1993 7.9 m 349
NISHNABOTNA RIVER Iowa Good 2020 97.5 m 349
MOSQUITO CREEK Iowa Fair 1963 31.4 m 349
SMALL STREAM Iowa Good 2013 6.4 m 349
MINNOW CREEK Iowa Poor 1900 6.4 m 349
STREAM Iowa Poor 1968 13.4 m 349
SMALL STREAM Iowa Poor 1920 7.0 m 349
LONG BRANCH Iowa Fair 1974 12.5 m 349
SMALL STREAM Iowa Poor 1900 18.3 m 346
DAVIDS CREEK Iowa Fair 1995 43.9 m 346
DEER CREEK TRIBUTARY Iowa Good 2015 9.8 m 345
DEEP CREEK Iowa Good 1998 31.4 m 345
BARNES CREEK Iowa Good 1993 27.6 m 345
BRANCH SALT CREEK Iowa Poor 1996 17.4 m 344
COLD WATER CREEK Iowa Good 2016 12.1 m 344
SMALL STREAM Iowa Fair 1959 7.9 m 344
PANTHER CR Iowa Fair 1968 30.5 m 344
W BR PINE CREEK Iowa Fair 1977 31.4 m 344
SMALL STREAM Iowa Good 2004 26.5 m 344
SMALL STREAM Iowa Fair 1950 7.9 m 344
WAPSIPINICON RIVER Iowa Fair 1954 92.4 m 344
SMALL NATURAL STREAM Iowa Fair 1954 8.2 m 344

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.