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
MUCHIKINOCK CREEK Iowa Fair 1990 7.6 m 274
MUCHINOCK CREEK Iowa Fair 1990 7.6 m 274
MUCHINOCK CREEK Iowa Fair 1990 7.6 m 274
LITTLE MAQUOKETA RIVER Iowa Fair 1984 39.0 m 274
MUCHINOCK CREEK Iowa Fair 1990 11.6 m 274
TARKIO CREEK Iowa Fair 1988 39.3 m 274
I-80 Iowa Good 1962 66.4 m 272
BLUE GRASS CREEK Iowa Good 2022 31.4 m 271
ENGLISH RIVER Iowa Good 1998 99.4 m 270
EMERY CREEK Iowa Fair 1980 19.2 m 270
DRY RUN CREEK Iowa Fair 1958 7.3 m 270
STREAM Iowa Good 2000 53.6 m 270
CREEK Iowa Good 1998 6.7 m 270
I-29 Iowa Fair 1967 66.8 m 270
OVER UP RR Iowa Fair 1994 62.8 m 270
CROOKED CREEK Iowa Fair 1987 69.8 m 270
WHITE OAK CREEK Iowa Fair 1990 10.7 m 270
DRAINAGE Iowa Poor 1964 30.5 m 270
LITTLE BEAR CREEK Iowa Good 2011 43.0 m 270
LYONS CREEK Iowa Fair 2003 13.7 m 270
CREEK Iowa Good 1966 39.0 m 270
ROCK CREEK Iowa Poor 1964 15.2 m 270
SKUNK RIVER Iowa Fair 1962 18.9 m 270
NO NAME CREEK Iowa Fair 1966 21.3 m 270
DIRTY FACE CREEK Iowa Fair 1980 27.7 m 270
BR DIRTY FACE CR Iowa Fair 1977 27.7 m 270
PILOT CREEK Iowa Good 2015 25.3 m 270
LITTLE SIOUX RIVER Iowa Poor 1966 53.3 m 270
SMALL STREAM Iowa Fair 1985 7.3 m 270
STREAM Iowa Fair 1978 27.7 m 270
BIG CREEK Iowa Poor 1964 43.3 m 270
STONEY CREEK Iowa Fair 1965 39.0 m 270
W BR FLOYD RIVER Iowa Fair 1968 45.7 m 270
BNSF RR Iowa Good 2003 63.7 m 270
SMALL Iowa Good 2008 6.7 m 270
PILOT CK DD #63 Iowa Good 2006 27.7 m 270
WINNEBAGO RIVER Iowa Fair 2002 34.4 m 270
POTATO CREEK Iowa Good 2007 7.0 m 270
GRAND RIVER Iowa Fair 1973 54.9 m 270
LOTTS CREEK Iowa Fair 1973 39.0 m 270
W FK GRAND RIVER Iowa Fair 1979 78.0 m 270
MOSQUITO CREEK Iowa Fair 1999 35.1 m 270
NO NAME CREEK Iowa Fair 1968 23.5 m 270
DD 81 Iowa Fair 1988 7.3 m 270
STREAM Iowa Good 2012 7.3 m 270
STREAM Iowa Poor 1981 19.2 m 270
SUGAR CREEK Iowa Poor 1950 21.0 m 270
SMALL STREAM Iowa Poor 1925 6.7 m 270
WALNUT CREEK Iowa Fair 1992 43.0 m 270
HARDIN CREEK Iowa Fair 1961 31.1 m 270

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.