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
NISHNABOTNA RIVER Iowa Poor 1951 64.9 m 131
SMALL CREEK Iowa Good 2021 37.8 m 131
SMALL Iowa Fair 1987 7.0 m 131
SMALL STREAM Iowa Good 2019 7.9 m 131
US 30 Iowa Good 1996 81.7 m 131
BRANCH LITTLE SIOUX Iowa Fair 1966 8.5 m 131
CREEK Iowa Good 1999 7.6 m 131
CREEK Iowa Fair 1984 7.9 m 131
SMALL STREAM Iowa Good 2017 10.7 m 130
STREAM Iowa Fair 1984 12.2 m 130
PAUL CREEK Iowa Poor 1957 9.1 m 130
LITTLE WHITEBREAST CREEK Iowa Fair 1957 39.0 m 130
HOCKEYS SLOUGH Iowa Fair 1977 23.5 m 130
BR IOWA RIVER Iowa Poor 1935 10.1 m 130
BR LITTLE WHITEBREAST CR Iowa Good 2017 8.2 m 130
FLINT RIVER Iowa Fair 1941 34.7 m 130
PLUM CREEK Iowa Fair 1934 19.2 m 130
BR MUD CREEK Iowa Fair 1993 31.4 m 130
CROOKED CREEK Iowa Fair 1968 54.0 m 130
WATSON CREEK Iowa Poor 1930 20.7 m 130
OTTER CR Iowa Poor 1953 61.9 m 130
N FABIUS RIVER Iowa Good 1989 50.9 m 130
STREAM Iowa Good 2017 8.8 m 130
MIDDLE ENGLISH RIVER Iowa Fair 1975 16.8 m 130
BR COMPETINE CREEK Iowa Fair 1965 9.8 m 130
BIG CREEK Iowa Good 2017 70.7 m 130
BEAVER DAM CREEK Iowa Fair 1972 6.7 m 130
STEIN CREEK Iowa Fair 1969 6.4 m 130
HOG THIEF HOLLOW Iowa Good 1991 11.9 m 130
PRAIRIE CREEK Iowa Poor 1971 25.6 m 130
CREEK Iowa Poor 1997 13.7 m 130
JOHNS CREEK Iowa Fair 2001 38.1 m 130
DEEP CREEK Iowa Fair 1990 61.0 m 130
SMALL STREAM Iowa Fair 1961 12.8 m 130
SMALL Iowa Fair 1949 15.5 m 130
BIG CREEK Iowa Poor 1929 36.0 m 130
STREAM Iowa Fair 1959 7.3 m 130
DIBBLE CREEK Iowa Good 2004 34.1 m 130
BEAR CREEK Iowa Poor 1979 39.0 m 130
JACKSON CREEK Iowa Fair 1988 11.6 m 130
BR RAPID CR Iowa Poor 1950 13.4 m 130
WAPSINONOC CREEK Iowa Good 1992 23.8 m 130
COMPETINE CREEK Iowa Fair 1962 25.0 m 130
BR COMPETINE CREEK Iowa Fair 1962 9.8 m 130
CREEK Iowa Good 2003 17.1 m 130
SPRING CREEK Iowa Good 2003 6.1 m 130
WAPSIPINICON RIVER Iowa Good 1996 98.8 m 130
MILL CREEK Iowa Good 1992 43.0 m 130
LITTLE MAQUOKETA RIVER Iowa Good 2024 25.3 m 130
BR CEDAR RIVER Iowa Good 2008 7.0 m 130

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.