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
BRANCH BEAR CREEK Iowa Fair 1962 7.0 m 330
SMALL STREAM Iowa Poor 1990 14.9 m 330
SMALL STREAM Iowa Fair 1977 7.0 m 330
WHITE FOX CREEK Iowa Fair 1960 39.0 m 330
NORTH BUFFALO CREEK Iowa Good 2007 31.5 m 330
CROOKED CREEK Iowa Fair 1989 6.4 m 330
WINNEBAGO RIVER Iowa Fair 1974 39.0 m 330
THUNDER CREEK Iowa Fair 1975 31.4 m 330
YANKEE RUN Iowa Poor 1940 7.6 m 330
DD #41 BIG CEDAR CK Iowa Poor 1977 27.7 m 330
I-380 Iowa Fair 1981 93.6 m 330
WEST TARKIO CREEK Iowa Poor 1968 64.9 m 329
DRAINAGE DITCH 9-13 Iowa Good 2005 28.0 m 329
NISHNABOTNA RIVER Iowa Good 2015 118.5 m 329
MIDDLE RIVER Iowa Fair 1983 67.1 m 329
GRAND RIVER Iowa Poor 1959 92.1 m 329
WEST BEAVER CREEK Iowa Fair 1924 12.8 m 329
WEST 102 RIVER Iowa Poor 1962 62.2 m 329
WEST 102 RIVER Iowa Poor 1986 58.5 m 329
BASSWOOD CREEK Iowa Good 2010 7.9 m 329
STREAM Iowa Good 2020 6.4 m 329
STREAM Iowa Good 2013 25.3 m 329
EAST NISHNABOTNA Iowa Fair 1959 77.1 m 329
DICKENSON BRANCH Iowa Fair 1963 38.7 m 329
JIM CREEK Iowa Poor 1971 23.8 m 329
MID TARKIO CREEK Iowa Poor 1968 34.4 m 329
BEAVER CREEK Iowa Good 2017 33.8 m 329
BASSWOOD CREEK Iowa Good 2010 6.6 m 329
STREAM Iowa Fair 1959 7.6 m 329
MCGRUDER CREEK Iowa Good 2015 37.5 m 329
SOUTH RACCOON RIVER Iowa Poor 1975 76.2 m 329
DRAINAGE Iowa Good 2011 24.4 m 327
RIO GRANDE CREEK Iowa Good 1999 21.6 m 326
FORK CREEK Iowa Poor 1960 6.7 m 326
MUDDY CREEK Iowa Good 2002 58.5 m 325
STREAM Iowa Poor 1960 7.9 m 325
LIME CREEK Iowa Fair 1990 54.6 m 324
STREAM Iowa Good 2009 7.0 m 324
ROCK FALLS CREEK Iowa Poor 1966 9.4 m 324
UPPER IOWA RIVER Iowa Poor 1937 90.5 m 324
SMALL STREAM Iowa Fair 1978 10.1 m 324
FORK OF MINNEHAHA CREEK Iowa Fair 1986 31.4 m 324
IOWA RIVER Iowa Good 2011 102.7 m 324
UPPER IOWA RIVER BRANCH Iowa Good 1987 26.5 m 324
SMITH CREEK Iowa Fair 2003 12.2 m 324
CEDAR RIVER Iowa Poor 1968 316.4 m 324
CREEK Iowa Good 2008 45.7 m 323
RED OAK CREEK Iowa Fair 1955 18.6 m 321
DEVILS RUN Iowa Fair 1975 11.9 m 320
DRAINAGE DITCH 11 Iowa Good 2007 36.6 m 320

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.