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
LONE TREE CREEK Iowa Good 1971 94.8 m 2,830
TURKEY CREEK Iowa Good 1971 62.5 m 2,830
DRAINAGE DITCH Iowa Fair 1968 7.6 m 2,830
QUARTER SECTION RUN Iowa Good 2010 15.9 m 2,830
WAPSINONOC CREEK Iowa Good 1988 70.1 m 2,830
RACCOON AND RR Iowa Poor 1936 288.6 m 2,825
MIDDLE SILVER CREEK Iowa Good 1989 40.5 m 2,820
W NISHNABOTNA RIVER Iowa Fair 1985 90.8 m 2,820
MIDDLE SILVER CREEK Iowa Fair 1998 7.3 m 2,820
STREAM Iowa Fair 1997 8.8 m 2,820
SILVER CREEK Iowa Fair 1961 74.7 m 2,820
GODDARD CREEK Iowa Good 2006 39.6 m 2,810
BUCK CREEK Iowa Fair 1979 56.1 m 2,810
MAYNES CREEK Iowa Good 1981 52.7 m 2,810
INDIAN CREEK Iowa Fair 1972 10.7 m 2,806
E BR W NISHNABOTNA RVR Iowa Good 2024 113.5 m 2,800
WAPSIPINICON RIVER Iowa Good 2008 118.7 m 2,800
DRAINAGE DITCH Iowa Good 1984 29.9 m 2,800
STREAM Iowa Fair 1966 7.0 m 2,800
MIDDLE NODAWAY RIVER Iowa Fair 1966 58.2 m 2,800
TURKEY RIVER Iowa Good 1982 85.6 m 2,800
170TH ST Iowa Good 2017 58.5 m 2,800
I 80/US 218/IA 27 Iowa Good 2020 844.6 m 2,800
TURKEY RIVER OVERFLOW Iowa Good 1982 58.2 m 2,800
US 218 Iowa Fair 2002 69.5 m 2,800
DRY CREEK Iowa Fair 1955 38.7 m 2,800
BOONE RIVER Iowa Good 1984 79.6 m 2,800
170TH ST Iowa Good 2017 58.5 m 2,800
NORTH SKUNK RIVER Iowa Good 2022 145.2 m 2,800
WAPSIPINICON RIVER Iowa Good 2008 118.4 m 2,800
PRARIE CREEK Iowa Good 2003 53.0 m 2,800
DRAINAGE DITCH Iowa Good 1955 8.2 m 2,790
YANKEE RUN Iowa Fair 1955 15.2 m 2,790
YANKEE RUN Iowa Fair 1955 34.4 m 2,790
IOWA RIVER Iowa Good 2001 172.8 m 2,790
DRAINAGE DITCH Iowa Good 1979 6.4 m 2,790
MIDDLE TARKIO RIVER Iowa Good 1992 64.3 m 2,790
EAST TARKIO RIVER Iowa Good 1991 57.3 m 2,790
MAQUOKETA RIVER Iowa Fair 1969 107.6 m 2,787
MILL CREEK Iowa Good 1974 11.9 m 2,780
LITTLE TURKEY RIVER Iowa Fair 1974 62.5 m 2,780
SALT CREEK Iowa Fair 1976 6.4 m 2,780
STREAM Iowa Good 1970 12.2 m 2,780
SINK CREEK Iowa Fair 1988 7.9 m 2,777
STREAM Iowa Fair 1988 8.4 m 2,770
LOTTS CREEK Iowa Good 1993 32.9 m 2,770
TRIB TO INDIAN CREEK Iowa Fair 1996 8.5 m 2,769
HOG RUN Iowa Good 1999 22.9 m 2,760
DRAINAGE DITCH Iowa Good 1979 8.8 m 2,760
DRAINAGE DITCH Iowa Good 1979 7.0 m 2,760

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.