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
E FORK GRAND RIVER Iowa Fair 2003 54.6 m 338
OTTER CREEK Iowa Good 2017 62.2 m 338
TARKIO CK Iowa Fair 1977 7.6 m 338
CREEK Iowa Fair 1958 55.8 m 338
CREEK Iowa Fair 1972 8.2 m 338
NODAWAY RIVER Iowa Fair 2000 62.5 m 338
ROCK RIVER Iowa Poor 1968 76.8 m 337
OTTER CREEK Iowa Good 2011 37.5 m 337
STREAM Iowa Fair 1963 12.8 m 336
ELK CREEK Iowa Good 2008 8.2 m 335
ALLEN CREEK Iowa Poor 1969 12.2 m 335
SMALL STREAM Iowa Good 2006 23.8 m 334
ROBINSON CREEK Iowa Good 2008 34.4 m 334
BEAVER CREEK Iowa Poor 1967 30.8 m 334
SMALL STREAM Iowa Good 2008 9.1 m 334
TRIB TO CEDAR RIVER Iowa Fair 1978 8.8 m 334
STREAM Iowa Fair 1972 23.8 m 334
PRATT CREEK Iowa Good 2015 7.9 m 334
BRANCH INDIAN CREEK Iowa Fair 1984 6.1 m 334
BUCK CREEK Iowa Fair 1972 53.6 m 334
E BR BEAVER DAM CREEK Iowa Good 1980 15.9 m 334
E BR BEAVER DAM CREEK Iowa Good 1983 15.9 m 334
INDIAN CREEK Iowa Good 1984 22.9 m 334
TIPTON CREEK Iowa Poor 1900 19.2 m 334
SPRING CREEK Iowa Good 2015 6.7 m 334
ROBINSON CREEK Iowa Good 2021 34.4 m 334
W BR BUFFALO CREEK Iowa Fair 1974 39.0 m 334
W BR BUFFALO CREEK Iowa Good 2004 34.4 m 334
SUGAR CREEK Iowa Good 2004 11.6 m 333
CREEK Iowa Fair 1998 34.7 m 330
WHITE FOX CREEK Iowa Fair 1960 39.0 m 330
SNYDER CREEK Iowa Fair 1982 7.9 m 330
SMALL STREAM Iowa Fair 1977 7.0 m 330
SMALL STREAM Iowa Poor 1990 14.9 m 330
BRANCH BEAR CREEK Iowa Fair 1962 7.0 m 330
STREAM Iowa Fair 1950 9.0 m 330
CREEK Iowa Fair 1971 6.7 m 330
RALSTON CREEK Iowa Poor 1957 6.7 m 330
BOONE RIVER Iowa Fair 1948 16.8 m 330
MAQUOKETA RIVER Iowa Poor 1950 134.1 m 330
WOLF CREEK Iowa Good 2009 50.9 m 330
DD #121 Iowa Good 1998 7.6 m 330
STREAM Iowa Good 2008 7.6 m 330
DRY RUN CREEK Iowa Good 2016 11.4 m 330
INLET BLACKHAWK LK Iowa Fair 1989 23.8 m 330
WOLF CREEK Iowa Poor 1958 43.9 m 330
SOUTH AVERY CREEK Iowa Good 2004 46.9 m 330
SUGAR CREEK Iowa Fair 1958 31.4 m 330
KEG CREEK Iowa Good 2018 40.5 m 330
STREAM Iowa Good 2022 10.7 m 330

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.