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
MIDDLE NODAWAY RIVER Iowa Good 1978 62.2 m 249
BEAR CREEK Iowa Fair 1999 39.0 m 247
CRABAPPLE Iowa Fair 1998 21.9 m 246
TURKEY RIVER Iowa Good 1983 92.7 m 246
SMALL STREAM Iowa Good 1982 9.8 m 246
FORK WOLF CREEK Iowa Good 1983 7.6 m 246
SPRING CREEK Iowa Fair 1952 22.9 m 246
PRAIRIE CREEK Iowa Fair 2000 7.6 m 246
FRINK CREEK Iowa Poor 1937 13.7 m 246
SILVER CREEK Iowa Fair 2000 7.6 m 246
CRANE CREEK Iowa Fair 1998 53.6 m 246
SPRING CREEK Iowa Fair 1992 7.6 m 246
WEST OTTER CREEK Iowa Good 2007 39.0 m 246
WAYMAN CREEK Iowa Fair 1951 38.1 m 246
CREEK Iowa Fair 1918 9.4 m 245
WINNEBAGO RIVER Iowa Poor 1975 32.6 m 245
COOPER CREEK Iowa Poor 1959 32.6 m 244
DD #81 Iowa Fair 1991 75.3 m 244
DRAINAGE Iowa Good 2005 7.3 m 243
SMALL CREEK Iowa Poor 1959 13.4 m 242
DRAINAGE Iowa Poor 1920 6.7 m 242
MIDDLE RIVER Iowa Fair 1959 40.5 m 240
PICAYUNE CR Iowa Fair 1976 9.1 m 240
SMALL STREAM Iowa Fair 2005 10.7 m 240
CREEK Iowa Fair 2000 11.0 m 240
JACK CREEK Iowa Fair 1973 23.8 m 240
LIZARD CREEK SO BRANCH Iowa Fair 1969 31.1 m 240
POSSUM CREEK Iowa Fair 1980 12.2 m 240
SMALL UN-NAMED CREEK Iowa Good 1998 6.4 m 240
ELK CREEK Iowa Good 2004 9.4 m 240
KEG CREEK Iowa Fair 2000 70.1 m 240
SMALL STREAM Iowa Good 2016 7.5 m 240
I-35 Iowa Fair 1964 66.1 m 240
ELK CREEK Iowa Poor 1958 54.3 m 240
DRY RUN Iowa Fair 1997 7.3 m 240
LITTLE MUDDY CREEK Iowa Good 1987 23.8 m 240
SILVER CREEK Iowa Good 2017 34.1 m 240
SMALL CREEK Iowa Fair 1978 22.9 m 240
N. FORK LITTLE MAQUOKETA Iowa Fair 2001 30.5 m 240
SMALL STREAM Iowa Poor 1972 7.3 m 240
D.D.#125 Iowa Fair 1987 10.7 m 240
WHITE BREAST CREEK Iowa Fair 1985 7.6 m 240
SODUS CREEK Iowa Good 2004 14.0 m 240
CARSON CREEK Iowa Good 2016 15.2 m 240
BUCK CREEK Iowa Fair 1975 7.9 m 240
W FORK DES MOINES RIVER Iowa Good 2019 69.8 m 240
DRAINAGE Iowa Good 1964 7.6 m 240
SM STREAM Iowa Good 2011 28.3 m 240
BEAR CREEK Iowa Fair 1995 38.1 m 240
PRAIRIE CREEK Iowa Good 2017 24.5 m 240

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.