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
LITTLE ROCK RIVER Iowa Poor 1968 53.6 m 131
STORM CREEK Iowa Fair 1980 23.5 m 131
EAST BR INDIAN CREEK Iowa Good 2014 46.0 m 131
GREENBRIER CREEK Iowa Good 2017 26.5 m 131
MAPLE RIVER Iowa Fair 1976 86.3 m 131
PLUM CREEK Iowa Good 2007 25.3 m 131
SILVER CREEK Iowa Poor 1960 31.4 m 131
LITTLE SILVER CREEK Iowa Fair 1950 6.4 m 131
SOUTH FORK LONG CREEK Iowa Fair 1965 13.7 m 131
DRAINAGE Iowa Good 2003 7.6 m 131
CREEK Iowa Poor 1918 11.6 m 131
DRAINAGE Iowa Poor 1958 7.6 m 131
SMALL STREAM Iowa Fair 1974 6.4 m 131
BOYER RIVER Iowa Good 1975 75.0 m 131
N FORK LONG CR Iowa Poor 1953 21.3 m 131
WEST BR INDIAN CREEK Iowa Good 2015 36.7 m 131
NORTH RIVER Iowa Good 1992 70.1 m 131
SMALL STREAM Iowa Good 1999 13.1 m 131
DRAINAGE Iowa Poor 1955 7.0 m 131
BRANCH BEE CREEK Iowa Poor 1985 6.4 m 131
WILLOW CREEK Iowa Fair 1972 7.3 m 131
NORTH RIVER Iowa Fair 1975 38.7 m 131
SEVEN MILE CREEK Iowa Poor 1957 21.3 m 131
BADGER CREEK Iowa Poor 1955 9.1 m 131
WEST BRANCH Iowa Poor 1957 38.4 m 131
FLOYD RIVER Iowa Good 2013 69.8 m 131
GRANT 5 OPEN DITCH EXT Iowa Poor 1916 7.9 m 131
GRAND RIVER Iowa Poor 1957 46.3 m 131
BADGER CREEK Iowa Fair 1960 38.4 m 131
BUCKLEY CREEK Iowa Poor 1929 13.1 m 131
STREAM Iowa Fair 1974 31.4 m 131
I-380 Iowa Good 1971 76.2 m 131
MUD CREEK Iowa Fair 1978 31.4 m 131
SUGAR CREEK Iowa Good 1978 51.5 m 131
BOX ELDER CREEK Iowa Fair 1985 31.4 m 131
BREWERS CREEK Iowa Fair 1978 9.4 m 131
WEST FORK LITTLE SIOUX Iowa Good 1967 53.3 m 131
INDIAN CREEK TRIB Iowa Fair 1957 24.4 m 131
CYLINDER CREEK Iowa Fair 1975 23.8 m 131
HENSCHAL CREEK Iowa Fair 1983 9.4 m 131
SMALL CREEK Iowa Good 2021 37.8 m 131
W FORK FLOYD RIV Iowa Fair 1969 54.6 m 131
CREEK Iowa Good 1997 6.7 m 131
BR IOWA RIVER Iowa Good 2018 25.5 m 131
OTTER CREEK Iowa Good 1993 26.8 m 131
SMALL STREAM Iowa Fair 2000 12.8 m 131
NISHNABOTNA RIVER Iowa Poor 1951 64.9 m 131
CREEK Iowa Good 1999 7.6 m 131
BRANCH LITTLE SIOUX Iowa Fair 1966 8.5 m 131
US 30 Iowa Good 1996 81.7 m 131

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.