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
SO BR LITTLE FLOYD RIVER Iowa Good 1989 35.4 m 409
UNNAMED STREAM Iowa Good 1980 9.8 m 409
DEEP CREEK Iowa Fair 1960 31.1 m 409
WATERMAN CREEK Iowa Good 1963 31.4 m 409
CREEK Iowa Good 2006 66.1 m 409
BRLIZARDCK DD #53BR#19 Iowa Fair 1966 9.8 m 409
CREEK Iowa Good 2020 25.3 m 409
DRAINAGE DITCH #38 Iowa Good 2001 14.0 m 409
MOUNT ZION BRANCH Iowa Good 2021 34.4 m 409
W NISHNABOTNA RIVER Iowa Good 2007 74.1 m 409
GRASS WATERWAY Iowa Fair 1965 7.6 m 409
EAST NODAWAY RIVER Iowa Good 2015 62.3 m 409
THUNDER CREEK Iowa Fair 1987 39.0 m 408
LUICK CREEK Iowa Good 2016 11.9 m 406
UP RAILROAD Iowa Poor 1948 36.9 m 406
DRAINAGE TO CAMP CREEK Iowa Poor 1983 24.1 m 405
BNSF RR Iowa Good 1995 45.7 m 404
HARTGRAVES CREEK Iowa Good 2003 68.0 m 403
BEEDS CREEK Iowa Good 2004 26.8 m 403
STREAM Iowa Fair 1949 9.1 m 403
BIG BEAR CREEK Iowa Good 2017 43.6 m 403
INDIAN CREEK Iowa Fair 2004 39.0 m 403
BUFFALO CREEK Iowa Fair 1977 75.0 m 403
BAILEY CREEK Iowa Poor 1956 37.2 m 403
LITTLE TURKEY RIVER Iowa Fair 1983 46.0 m 403
BEAVER CREEK Iowa Fair 1953 12.8 m 403
SMALL CREEK Iowa Poor 1968 18.6 m 403
DRY BRANCH CREEK Iowa Poor 1964 25.3 m 403
TURKEY RIVER Iowa Good 2009 132.6 m 403
CREEK Iowa Poor 1953 11.6 m 403
LITTLE CEDAR RIVER Iowa Fair 1984 58.2 m 403
CREEK Iowa Poor 1962 8.3 m 403
CEDAR RIVER Iowa Good 1959 114.6 m 403
BLUE BELL CREEK Iowa Fair 1983 35.4 m 403
DRAINAGE Iowa Fair 1968 31.1 m 401
WAPSINONOC CREEK Iowa Fair 1970 9.1 m 400
STONY FORK Iowa Poor 1969 8.8 m 400
WHITE BREAST CREEK Iowa Fair 1970 69.2 m 400
HICKORY CREEK Iowa Fair 1945 15.9 m 400
SMALL STREAM Iowa Fair 1996 9.4 m 400
SMALL STREAM Iowa Poor 1964 6.4 m 400
LOTTS CREEK Iowa Fair 1971 39.2 m 400
N FORK MAQUOKETA RIVER Iowa Poor 1952 97.5 m 400
STONY CREEK Iowa Poor 1958 31.1 m 400
MILL CREEK Iowa Good 2021 30.8 m 400
COTTON CREEK Iowa Fair 1969 31.1 m 400
SUGAR CREEK Iowa Good 2001 39.3 m 400
CRANE CREEK Iowa Fair 1993 8.8 m 400
DRAINAGE Iowa Good 2011 33.5 m 400
SPILLWAY Iowa Fair 1935 19.5 m 400

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.