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
US 61/151 GRANGER CREEK Iowa Good 2019 172.4 m 1,810
LITTLE WAPSIPINICON RVR Iowa Fair 1976 25.3 m 1,810
WHITE BREAST CREEK Iowa Fair 1977 58.5 m 1,810
WHITE BREAST CREEK Iowa Fair 1979 54.0 m 1,810
OVER UP RR Iowa Fair 1979 89.9 m 1,810
STREAM Iowa Fair 1930 28.3 m 1,810
DRAINAGE DITCH Iowa Fair 1930 24.1 m 1,810
STREAM Iowa Fair 1952 11.0 m 1,810
STREAM Iowa Fair 1952 24.7 m 1,810
DUTCH CREEK Iowa Fair 1923 9.8 m 1,810
DRAINAGE DITCH Iowa Fair 1968 9.8 m 1,810
SMOKEY HOLLOW CREEK Iowa Fair 1959 25.0 m 1,810
LITTLE SIOUX RIVER Iowa Good 1927 83.5 m 1,810
SOLDIER CREEK Iowa Fair 1955 18.6 m 1,809
FLOYD RIVER Iowa Fair 1933 64.9 m 1,807
WALNUT CREEK Iowa Good 2006 59.7 m 1,807
OCHEYEDAN RIVER Iowa Fair 1973 68.0 m 1,806
SPRING CREEK Iowa Poor 1963 23.8 m 1,806
RALSTON CREEK Iowa Fair 1958 6.7 m 1,802
PHEASANT CREEK Iowa Fair 1987 25.3 m 1,802
STREAM Iowa Good 1987 7.9 m 1,800
DRAINAGE DITCH Iowa Fair 1900 6.7 m 1,800
PRAIRIE CREEK Iowa Fair 1976 42.1 m 1,800
SKILLET CREEK Iowa Good 1966 7.6 m 1,800
DRAINAGE Iowa Poor 1977 10.1 m 1,795
FLOYD RIVER Iowa Fair 1977 77.7 m 1,795
I 35 Iowa Good 2017 65.5 m 1,792
SMALL Iowa Good 1994 6.4 m 1,790
BIG BEAR CREEK Iowa Fair 1974 111.6 m 1,790
MISSOURI RIVER Iowa Fair 1950 596.2 m 1,790
BLUE LAKE CREEK Iowa Fair 1955 9.8 m 1,790
STREAM Iowa Fair 1953 8.2 m 1,790
OVER ABAND RR Iowa Fair 1973 39.0 m 1,785
BRANCH NORTH RIVER Iowa Fair 1973 7.6 m 1,783
LINN CREEK Iowa Good 1990 71.6 m 1,783
3RD ST NW Iowa Fair 1979 73.2 m 1,780
GRAND RIVER Iowa Fair 1966 51.2 m 1,780
STREAM Iowa Good 1939 7.3 m 1,780
STREAM Iowa Good 1939 6.4 m 1,780
BRANCH ODEBOLT RIVER Iowa Fair 1939 7.6 m 1,780
STREAM Iowa Fair 1939 7.6 m 1,780
BRANCH ODEBOLT CREEK Iowa Fair 1985 17.7 m 1,780
DRAINAGE DITCH Iowa Fair 1964 6.7 m 1,780
WAPSIPINICON RIVER Iowa Fair 1979 57.3 m 1,780
RAMP CREEK Iowa Fair 1987 7.0 m 1,780
STREAM Iowa Good 2021 11.4 m 1,780
HEWETTS CREEK Iowa Fair 1995 30.5 m 1,778
TRIB. OTTER CREEK Iowa Good 1985 6.6 m 1,777
UPPER IOWA RIVER Iowa Good 2005 73.2 m 1,774
STREAM Iowa Fair 1928 14.9 m 1,773

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.