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
RICHLAND CREEK Iowa Good 1978 63.7 m 2,490
E BRANCH BEAVER DAM CRK Iowa Good 2020 46.0 m 2,490
E BRANCH BEAVER DAM CRK Iowa Good 2020 46.0 m 2,490
E BRANCH BEAVERDAM CREEK Iowa Good 2020 65.5 m 2,490
CAMP CREEK Iowa Good 2019 11.6 m 2,490
BEAR CREEK Iowa Good 2005 52.1 m 2,490
RALSTON CREEK Iowa Poor 1910 10.4 m 2,487
WILLOW CREEK Iowa Good 2003 81.4 m 2,485
UNNAMED CREEK Iowa Good 2006 68.9 m 2,485
WILLOW CREEK Iowa Good 2003 81.4 m 2,485
MITCHELL CREEK Iowa Fair 2008 60.7 m 2,485
MITCHELL CREEK Iowa Fair 2008 60.7 m 2,485
UNNAMED CREEK Iowa Good 2006 68.9 m 2,485
INDIAN CREEK Iowa Fair 1957 8.7 m 2,484
SPRING CREEK Iowa Fair 1956 11.5 m 2,484
IOWA RIVER Iowa Fair 1977 62.8 m 2,480
STREAM Iowa Fair 1959 10.1 m 2,480
STREAM Iowa Fair 1959 6.4 m 2,480
STREAM Iowa Fair 1957 8.2 m 2,480
DRAINAGE DITCH Iowa Fair 1924 10.7 m 2,480
BEAVER CREEK Iowa Good 2003 91.7 m 2,480
WAPSINONOC CREEK Iowa Fair 1956 14.0 m 2,480
SUGAR CREEK Iowa Good 2000 28.3 m 2,480
STREAM Iowa Fair 1962 6.7 m 2,480
WAPSINONOC CREEK Iowa Good 2019 36.9 m 2,480
JORDON CREEK Iowa Fair 1990 9.4 m 2,477
EAST NISHNABOTNA RIVER Iowa Fair 1959 75.0 m 2,470
MCDONALDS CREEK Iowa Good 2012 31.4 m 2,470
E BRANCH IOWA RIVER Iowa Fair 2018 24.6 m 2,470
LITTLE BEAR CREEK Iowa Fair 1978 31.4 m 2,470
BEEDS CREEK Iowa Fair 1920 6.7 m 2,468
DEER CREEK TRIBUTARY Iowa Good 2023 213.4 m 2,466
BNSF RR Iowa Fair 1940 71.3 m 2,462
LITTLE CEDAR CREEK Iowa Good 1991 75.0 m 2,460
BUSINESS US 30 Iowa Good 2009 64.7 m 2,460
SPRING CREEK Iowa Fair 1975 6.4 m 2,460
SPRING CREEK Iowa Fair 1967 8.5 m 2,460
W. FORK DES MOINES RIVER Iowa Fair 1958 99.1 m 2,460
DRAINAGE Iowa Fair 1977 7.6 m 2,455
BRUSHY CREEK Iowa Fair 1979 31.4 m 2,453
BRANCH FOX CREEK Iowa Good 1987 7.6 m 2,450
GALLS CREEK Iowa Poor 1930 10.4 m 2,450
DRAINAGE DITCH Iowa Fair 1930 12.8 m 2,450
MCCLOUD RUN Iowa Good 2023 57.6 m 2,450
IA 5 Iowa Good 2000 118.6 m 2,449
INDIAN CR Iowa Fair 1972 38.7 m 2,445
US 71 NB Iowa Good 2012 61.3 m 2,440
BNSF RR Iowa Fair 1984 57.3 m 2,440
IMRR & B-57 Iowa Good 2002 103.9 m 2,440
US 71 NB Iowa Good 2012 61.3 m 2,440

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.