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
WILLOW CREEK Iowa Fair 1920 19.5 m 5,897
INDIAN CREEK Iowa Good 2023 9.1 m 5,896
WANATEE CREEK Iowa Good 2001 39.0 m 5,894
NB/WB RAMP I-380 Iowa Fair 1980 84.7 m 5,850
IOWA RIVER EAST OVERFLOW Iowa Good 2020 46.6 m 5,850
IOWA RIVER Iowa Good 2005 165.8 m 5,850
PONY CREEK Iowa Fair 1973 52.4 m 5,850
PONY CREEK Iowa Fair 1973 52.4 m 5,850
NB/WB RAMP I-380 Iowa Fair 1980 84.7 m 5,850
BREWERS CREEK Iowa Fair 1923 40.8 m 5,839
SKUNK RIVER Iowa Good 1996 50.9 m 5,834
MUDDY CREEK Iowa Good 1996 50.3 m 5,803
WALNUT CREEK Iowa Good 1993 29.9 m 5,800
HARROWS CREEK Iowa Good 1977 7.9 m 5,800
DES MOINES RIVER Iowa Good 2006 445.0 m 5,800
OVER CC RR Iowa Fair 1968 142.6 m 5,800
WALNUT CREEK Iowa Good 1974 29.9 m 5,800
US 18 Iowa Good 1996 71.3 m 5,800
INDIAN CREEK Iowa Fair 1972 64.6 m 5,800
MIDDLE CHEQUEST CREEK Iowa Fair 1963 46.9 m 5,800
US 34 Iowa Fair 1970 43.9 m 5,800
CHRISTOPHER CREEK Iowa Good 1985 6.7 m 5,794
INDIAN CREEK Iowa Good 1993 39.0 m 5,794
FOUR MILE CREEK Iowa Fair 1966 51.2 m 5,776
SOLDIER CREEK & TRAIL Iowa Poor 1961 279.8 m 5,768
BNSF RR Iowa Good 1977 58.8 m 5,750
OLD FERRY RD Iowa Good 2016 72.8 m 5,750
BNSF RR Iowa Fair 1977 58.8 m 5,750
USHERS FERRY RD & CK Iowa Good 2016 96.0 m 5,750
S. FORK LONG CREEK Iowa Fair 1997 41.8 m 5,750
I-235 Iowa Good 2005 82.6 m 5,745
PERRY CREEK CONDUIT Iowa Good 2000 15.2 m 5,704
PONY CREEK Iowa Fair 1953 9.8 m 5,700
OLD FERRY RD Iowa Good 2016 72.8 m 5,700
STREAM Iowa Good 1958 6.4 m 5,700
OVER CC RR & MCCLOUD RUN Iowa Fair 1980 88.4 m 5,700
IA 17 Iowa Good 1974 78.3 m 5,700
USHERS FERRY RD & CK Iowa Good 2016 96.0 m 5,700
STREAM Iowa Fair 1953 7.0 m 5,700
SILVER CREEK Iowa Poor 1955 64.6 m 5,696
POYNER CREEK Iowa Fair 1959 15.2 m 5,694
FLOYD RIVER Iowa Fair 1999 239.0 m 5,650
FLOYD RIVER Iowa Fair 2000 239.0 m 5,650
INDIAN CREEK Iowa Fair 2002 67.4 m 5,650
MIDDLE RIVER Iowa Fair 1966 108.5 m 5,650
INDIAN CREEK Iowa Fair 1932 66.1 m 5,650
S FK LONG CREEK Iowa Good 1997 41.1 m 5,650
MIDDLE RIVER Iowa Good 1997 114.6 m 5,650
FOUR MILE CREEK Iowa Fair 1982 49.7 m 5,650
I-35 Iowa Fair 1966 66.4 m 5,642

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.