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
BRUSHY CREEK Iowa Good 1986 36.0 m 4,900
SOUTH SKUNK RIVER Iowa Fair 2000 106.1 m 4,900
BRUSHY CREEK Iowa Good 1986 36.0 m 4,900
ROBERTS CREEK Iowa Good 1979 82.6 m 4,900
S BEAVER CREEK Iowa Good 2003 53.0 m 4,900
D 35 (ELM ST) Iowa Fair 2003 56.1 m 4,900
W FORK DES MOINES RIVER Iowa Good 1965 74.4 m 4,890
OVER BNSF RR Iowa Fair 1971 88.1 m 4,890
OLD MANS CREEK Iowa Good 2020 92.0 m 4,890
STREAM Iowa Good 2020 7.6 m 4,890
US 218 Iowa Good 2001 116.1 m 4,890
STORM LAKE INLET Iowa Good 1978 16.5 m 4,890
TWELVE MILE CREEK Iowa Fair 1971 52.1 m 4,890
TWELVE MILE CREEK Iowa Fair 1971 6.4 m 4,890
OLD MANS CRK E OVERFLOW Iowa Good 2020 11.4 m 4,890
OLD WOMANS CREEK Iowa Good 2020 42.4 m 4,890
OLD MANS CRK E OVRFLW Iowa Good 2020 11.4 m 4,890
BR. EAST PLATTE RIVER Iowa Fair 1971 8.8 m 4,890
SKUNK RIVER Iowa Good 2007 84.4 m 4,878
COLLEGE CREEK Iowa Good 1973 7.6 m 4,878
I-29 Iowa Fair 2003 65.2 m 4,878
SMALL STREAM Iowa Good 2000 16.5 m 4,875
ODEBOLT CREEK Iowa Good 2022 54.6 m 4,873
STREAM Iowa Fair 1976 10.1 m 4,870
4TH ST & RR Iowa Fair 1974 98.8 m 4,860
MAD CREEK Iowa Fair 1957 20.4 m 4,858
RALSTON CREEK N. BRANCH Iowa Good 2003 7.9 m 4,858
US 20 Iowa Good 1984 81.4 m 4,855
I-380 Iowa Fair 1980 115.8 m 4,855
SOUTH FISH CREEK Iowa Fair 1964 68.3 m 4,850
UNNAMED STREAM Iowa Good 2017 7.6 m 4,850
SKUNK RIVER Iowa Good 2019 190.2 m 4,850
NORTH FISH CREEK Iowa Fair 1963 50.6 m 4,850
BIG CREEK Iowa Fair 1963 61.0 m 4,850
KEIGLEY BRANCH Iowa Good 2016 36.9 m 4,850
BEAVER CREEK Iowa Good 2003 40.8 m 4,850
BRANCH PLUM CREEK Iowa Good 1981 48.5 m 4,850
BEAVER CREEK Iowa Good 2003 40.8 m 4,850
IA 64 Iowa Good 2001 61.9 m 4,850
BRANCH PLUM CREEK Iowa Fair 1963 48.2 m 4,850
OVRFLW AVE SAINTS LAKE Iowa Good 1996 56.1 m 4,850
STREAM Iowa Good 1980 7.6 m 4,840
BRANCH MAQUOKETA RIVER Iowa Fair 1975 7.9 m 4,840
BRANCH MAQUOKETA RIVER Iowa Fair 1975 6.7 m 4,840
STREAM Iowa Good 1975 7.0 m 4,840
UNNAMED CREEK Iowa Good 1974 7.9 m 4,840
UNNAMED CREEK Iowa Good 1975 11.9 m 4,840
CLEAR CREEK Iowa Good 2021 76.8 m 4,830
US 218 Iowa Good 2012 85.4 m 4,815
PASCALS CREEK Iowa Good 1976 13.1 m 4,810

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.