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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.

Clear
BridgeLocationConditionYear BuiltLengthADT
INDIAN CREEK OVERFLOW Iowa Fair 1959 48.2 m 17,250
OVER UPRR Iowa Good 2000 52.1 m 17,200
FLOYD RIVER Iowa Fair 2016 199.1 m 17,200
WILLOW CREEK Iowa Fair 1971 8.5 m 17,200
STREAM Iowa Good 1984 10.1 m 17,100
NORTH 40TH ST Iowa Good 2023 81.5 m 17,100
I29 RR HARRYLANGDON BLVD Iowa Good 2019 1,017.1 m 17,050
OVER IAIS RR Iowa Fair 1962 41.8 m 17,000
CHERRY CREEK Iowa Fair 1962 48.2 m 17,000
DRAINAGE DITCH Iowa Good 1973 7.6 m 17,000
DRAINAGE DITCH Iowa Fair 1972 11.6 m 16,900
PHEASANT CREEK Iowa Good 1994 12.2 m 16,900
LITTLE SIOUX RIVER Iowa Good 2006 139.9 m 16,900
CO RD (Z-30) Iowa Fair 1963 46.9 m 16,850
OVER IAIS RR Iowa Fair 1962 41.8 m 16,700
CHERRY CREEK Iowa Fair 1962 48.2 m 16,700
PRAIRIE CREEK Iowa Fair 1961 54.9 m 16,700
PIERCE ST FRONTAGE RD Iowa Fair 2017 58.5 m 16,700
PRAIRIE CREEK Iowa Fair 1961 54.9 m 16,700
US 34 Iowa Fair 1973 78.0 m 16,700
DRAINAGE DITCH 23 & 31 Iowa Good 1972 6.4 m 16,600
MCCOY RD Iowa Good 1983 44.5 m 16,600
ELK RUN CREEK & RD Iowa Good 1983 105.2 m 16,600
ELK RUN CREEK & RD Iowa Fair 1983 105.2 m 16,600
MCCOY RD Iowa Good 1983 44.5 m 16,600
NEBR AVE & UPRR SPUR Iowa Good 2022 94.8 m 16,500
NEBRASKA AVE UP RR Iowa Good 2021 94.8 m 16,500
PERRY CREEK CONDUIT Iowa Good 2017 27.0 m 16,450
PERRY CREEK CONDUIT Iowa Fair 2019 27.0 m 16,450
SOUTH SKUNK RIVER Iowa Fair 1963 99.1 m 16,300
DES MOINES RIVER Iowa Fair 1920 258.8 m 16,294
I-380 Iowa Good 1982 75.6 m 16,284
W38 (BLACK HAWK AVE) Iowa Fair 1964 40.5 m 16,250
INDIAN CREEK Iowa Good 2014 78.3 m 16,200
INDIAN CREEK Iowa Good 2018 78.3 m 16,200
210TH ST Iowa Fair 1981 80.5 m 16,000
DME RR Iowa Fair 1981 105.2 m 16,000
US 30 Iowa Fair 1964 71.6 m 15,950
W38 (BLACK HAWK AVE) Iowa Fair 1964 40.5 m 15,950
MISSOURI RIVER & I-29 Iowa Fair 1976 794.6 m 15,800
MIDDLE RD Iowa Fair 1963 44.2 m 15,800
BEAR CREEK Iowa Fair 1967 104.5 m 15,800
OVER CIC RR SPUR Iowa Fair 1980 89.3 m 15,750
UP RR 21ST ST SW CREEK Iowa Fair 1980 303.6 m 15,750
OVER CIC RR Iowa Fair 1979 121.6 m 15,750
OVER CIC RR SPUR Iowa Fair 1980 89.3 m 15,750
UP RR 21ST ST SW CREEK Iowa Fair 1980 303.6 m 15,750
HAMILTON BLVD Iowa Fair 2019 64.6 m 15,700
HAMILTON BLVD Iowa Fair 2016 64.6 m 15,700
WALNUT CREEK/BIKE PATH Iowa Good 1998 54.3 m 15,650

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.