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
APPLE CREEK Iowa Fair 1935 12.8 m 1,070
STREAM Iowa Fair 1956 25.0 m 1,070
STREAM Iowa Fair 1956 31.1 m 1,070
STREAM Iowa Good 2001 12.2 m 1,070
S COPPER CREEK Iowa Poor 1974 16.8 m 1,070
COPPER CREEK Iowa Fair 1974 13.1 m 1,070
LITTLE CEDAR CREEK Iowa Good 2015 11.3 m 1,070
PRAIRIE CREEK Iowa Good 2013 11.6 m 1,070
PRAIRIE CREEK Iowa Good 2013 9.8 m 1,070
SMALL NATURAL STREAM Iowa Poor 1967 28.0 m 1,070
CREEK Iowa Fair 1964 7.3 m 1,070
BRANCH BOYER RIVER Iowa Good 1984 7.6 m 1,070
BOYER RIVER Iowa Fair 1984 58.2 m 1,070
E BIG CREEK Iowa Fair 1986 39.6 m 1,069
CROOKED CREEK Iowa Fair 1982 9.1 m 1,067
FOUR MILE CREEK TRIBUTAR Iowa Good 1986 49.7 m 1,066
DRAINAGE DITCH Iowa Fair 1976 22.3 m 1,065
BOYER RIVER Iowa Fair 1991 89.6 m 1,065
DRAINAGE DITCH Iowa Good 1991 22.6 m 1,065
BOONE RIVER Iowa Fair 1954 104.5 m 1,065
SILVER CREEK Iowa Good 2006 53.6 m 1,065
KEG CREEK Iowa Poor 1967 54.0 m 1,065
BURNETT CREEK Iowa Fair 1985 46.9 m 1,061
PLEASANT RUN Iowa Fair 1997 27.7 m 1,061
BR ROBINSON CREEK Iowa Poor 1922 7.3 m 1,061
IOWA RIVER Iowa Fair 1981 87.8 m 1,061
WILLOW CREEK Iowa Fair 1970 11.6 m 1,061
CRANE CREEK Iowa Fair 1971 13.7 m 1,061
LOST CREEK Iowa Good 1985 46.6 m 1,060
OVERFLOW STRUCTURE Iowa Good 2014 11.9 m 1,060
WALNUT CREEK Iowa Poor 1949 31.7 m 1,060
CREEK Iowa Poor 1923 10.1 m 1,060
WALNUT CREEK Iowa Poor 1973 84.1 m 1,060
WEST ROCK CREEK Iowa Good 2005 38.1 m 1,060
SEVENMILE CREEK Iowa Good 2023 69.2 m 1,060
WATERMAN CREEK Iowa Fair 1937 37.2 m 1,057
IA 5 Iowa Good 2000 248.1 m 1,055
CLANTON CREEK Iowa Fair 1995 66.1 m 1,055
MIDDLE PLATTE RIVER Iowa Good 2005 39.3 m 1,055
DRAINAGE Iowa Poor 1915 6.7 m 1,054
DRAINAGE DITCH Iowa Poor 1927 8.8 m 1,051
DRAINAGE DITCH Iowa Fair 1976 9.8 m 1,051
CREEK Iowa Fair 2001 7.3 m 1,051
BR BLACKHAWK CK Iowa Fair 1977 6.7 m 1,051
DRAINAGE DITCH Iowa Fair 1978 25.3 m 1,050
OVERFLOW IOWA RIVER Iowa Fair 1978 128.9 m 1,050
US 34 Iowa Good 2006 113.7 m 1,050
SEVEN MILE CREEK Iowa Good 2002 74.7 m 1,050
DRAINAGE DITCH Iowa Fair 1976 8.2 m 1,050
MILL RACE Iowa Fair 1976 40.5 m 1,050

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.