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
DRAINAGE DITCH Iowa Fair 1967 31.4 m 6,100
WILLOW CREEK Iowa Fair 1971 6.4 m 6,100
US 20 Iowa Fair 1978 88.1 m 6,100
PLUM CREEK Iowa Good 2009 73.8 m 6,100
SOUTH RACCOON RIVER Iowa Good 2015 118.6 m 6,100
MELONE CREEK Iowa Good 2019 40.7 m 6,094
S DRY RUN Iowa Poor 1968 12.8 m 6,093
HORSE CREEK Iowa Fair 1972 31.4 m 6,050
HORSE CREEK Iowa Fair 1972 31.4 m 6,050
W.BRANCH INDIAN CREEK Iowa Fair 1963 59.7 m 6,050
SINK CREEK Iowa Good 1983 54.0 m 6,050
BIG CREEK Iowa Good 2000 50.0 m 6,050
SMALL STREAM Iowa Good 2003 9.8 m 6,038
OVER RR Iowa Poor 1984 77.7 m 6,031
DES MOINES RIVER Iowa Good 2020 136.9 m 6,029
155TH ST Iowa Good 2009 46.6 m 6,000
OVER BNSF RR Iowa Fair 1966 108.2 m 6,000
UNNAMED STREAM Iowa Good 2014 7.6 m 6,000
US 20 Iowa Good 2019 200.9 m 6,000
I 280 WB Iowa Fair 1960 61.0 m 6,000
STREAM Iowa Good 2001 28.3 m 6,000
SILVER CREEK Iowa Good 1965 59.9 m 6,000
MIDDLE RACCOON RIVER Iowa Fair 1982 45.7 m 6,000
CROW CREEK Iowa Fair 2003 52.9 m 6,000
MILL CREEK Iowa Fair 1985 28.3 m 6,000
IA 64 Iowa Good 2001 61.9 m 6,000
CALAMUS CREEK Iowa Fair 1970 14.0 m 6,000
EB I-80 Iowa Fair 1960 73.2 m 6,000
IOWA RIVER Iowa Good 2009 120.7 m 6,000
155TH ST Iowa Good 2009 46.6 m 6,000
DRY RUN CREEK Iowa Good 1990 10.1 m 5,994
TRIB LITTLE BEAVER CREEK Iowa Good 2006 6.4 m 5,988
I-80 & US 6 Iowa Good 2006 95.1 m 5,975
US 30 & W 11TH ST Iowa Fair 1970 78.3 m 5,950
IOWA RIVER EAST OVERFLOW Iowa Good 2021 46.6 m 5,950
IOWA RIVER Iowa Good 2002 165.8 m 5,950
INDIAN CREEK CONDUIT Iowa Fair 1983 13.1 m 5,933
E FORK DES MOINES RIVER Iowa Good 1984 100.6 m 5,900
NORTH RIVER Iowa Fair 1983 72.5 m 5,900
NORTH CHEQUEST CREEK Iowa Fair 1963 6.4 m 5,900
DRAINAGE DITCH Iowa Fair 1952 7.6 m 5,900
OVER CC RR Iowa Fair 1969 70.4 m 5,900
BOYER RVR & CC RR & ROAD Iowa Fair 1973 238.4 m 5,900
BNSF RR Iowa Fair 1973 52.1 m 5,900
BNSF RR Iowa Fair 1973 52.1 m 5,900
DRAINAGE DITCH NO 1 & 54 Iowa Good 2010 10.7 m 5,900
W FORK CAMP CREEK Iowa Good 2010 8.2 m 5,900
EAST BEAVER CREEK Iowa Good 1962 6.4 m 5,900
CEDAR CREEK Iowa Good 1990 48.5 m 5,900
SOUTH LONG CREEK Iowa Fair 1967 40.5 m 5,900

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.