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 OF BEAR CREEK Iowa Good 2009 28.3 m 470
S-W CONN OVER EB I-880 Iowa Fair 1966 43.6 m 470
GRITTER CREEK Iowa Fair 1969 31.4 m 470
MC CLURE CREEK Iowa Poor 1970 31.1 m 470
SMALL STREAM Iowa Good 2013 13.1 m 470
LITTLE CEDAR RIVER Iowa Fair 1986 71.9 m 470
DRAINAGE DITCH 20 Iowa Good 2012 16.2 m 470
WEST FORK LITTLE SIOUX Iowa Poor 1963 62.2 m 469
DRY RUN CREEK Iowa Poor 1964 16.8 m 469
WOLF CREEK Iowa Fair 1966 9.1 m 469
DRAINAGE Iowa Good 2004 8.8 m 469
DRAINAGE DITCH 107 Iowa Good 2007 34.7 m 469
INDIAN CREEK Iowa Poor 1965 14.0 m 469
PURGATORY CREEK Iowa Good 2006 23.5 m 469
DRAINAGE DITCH Iowa Fair 1963 39.0 m 469
CREEK Iowa Fair 1989 34.4 m 469
CREEK Iowa Poor 1970 23.8 m 469
SM STREAM Iowa Fair 1974 6.1 m 469
SMALL Iowa Fair 1988 10.1 m 469
HALFWAY CREEK Iowa Fair 1991 10.7 m 469
UNNAMED CREEK Iowa Good 2015 9.6 m 468
SEVENMILE CREEK Iowa Poor 1971 46.9 m 468
HONEY CREEK Iowa Fair 1968 46.9 m 468
SHANGHAR CREEK Iowa Fair 1977 17.4 m 468
BEAMAN CREEK Iowa Good 1958 6.4 m 468
PONY CREEK Iowa Good 1931 16.8 m 468
BRUSH CREEK Iowa Good 1993 7.0 m 468
EATON DITCH Iowa Fair 1986 7.6 m 468
SMALL NATURAL STREAM Iowa Fair 1947 12.8 m 468
BOONE RIVER Iowa Fair 1986 20.7 m 467
CAMP CREEK Iowa Poor 1950 24.4 m 467
STREAM Iowa Fair 2004 9.8 m 466
CRAWFORD CREEK Iowa Good 2010 7.3 m 465
CREEK Iowa Poor 1960 6.1 m 462
BASKINS CREEK Iowa Fair 1955 29.0 m 462
VILLAGE CREEK Iowa Fair 1958 54.6 m 462
BEAR CREEK Iowa Fair 1960 7.9 m 462
VOLGA RIVER Iowa Fair 1953 73.2 m 462
TRIB TO MILLER CREEK Iowa Fair 1977 7.3 m 462
SMALL STREAM Iowa Fair 1979 6.7 m 462
BEAR CREEK Iowa Fair 1994 31.4 m 462
RIVER BEND CREEK Iowa Poor 1963 9.8 m 462
CREEK Iowa Fair 1975 23.8 m 462
N FORK MAQUOKETA RIVER Iowa Good 1999 58.5 m 462
WAPSIPINICON RIVER Iowa Poor 1940 46.6 m 462
LIZARD CREEK DD#53 Iowa Fair 1996 12.2 m 462
SMALL STREAM Iowa Fair 1950 10.4 m 462
SMALL STREAM Iowa Good 1998 7.3 m 460
EAST FORK CROOKED RIVER Iowa Good 2004 13.4 m 460
BNSF RR Iowa Good 2011 86.6 m 460

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.