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
DRY CREEK Iowa Good 2023 23.2 m 2,551
DRAINAGE DITCH Iowa Good 2004 6.4 m 2,550
HINKLE CREEK Iowa Fair 1985 43.6 m 2,550
MAPLE RIVER Iowa Good 2017 104.5 m 2,550
MCKINLEY AVE Iowa Good 2004 68.0 m 2,550
MCKINLEY AVE Iowa Good 2004 68.0 m 2,550
FAYETTE ST Iowa Good 1994 49.1 m 2,550
OVER UP RR Iowa Fair 1955 112.8 m 2,550
WAPSIPINICON RIVER Iowa Fair 1955 60.0 m 2,550
I 80 Iowa Good 2022 93.1 m 2,550
FRITZ CREEK Iowa Fair 2018 78.4 m 2,550
MAPLE RIVER Iowa Good 2017 104.5 m 2,550
US 169 Iowa Fair 1990 71.9 m 2,550
US 169 Iowa Good 1990 71.9 m 2,550
EB I-80 Iowa Good 2008 103.0 m 2,550
FRITZ CREEK Iowa Good 2017 78.4 m 2,550
DRAINAGE DITCH Iowa Fair 1935 11.6 m 2,550
I 80 Iowa Good 2022 93.1 m 2,550
WB I-80 Iowa Good 2009 93.6 m 2,550
IA 149 Iowa Good 2007 68.6 m 2,550
TRIB TO PRAIRIE CREEK Iowa Good 2009 11.9 m 2,541
HIGH ST Iowa Fair 1934 12.2 m 2,540
BR DOGGETT CREEK Iowa Fair 1978 9.1 m 2,540
DOSSET CREEK Iowa Good 1989 6.4 m 2,540
YANKEE RUN CREEK Iowa Fair 1954 10.1 m 2,540
NORTH SKUNK RIVER Iowa Fair 1986 118.0 m 2,540
SMALL STREAM Iowa Good 1985 39.0 m 2,539
ELK RUN CREEK Iowa Good 2005 36.6 m 2,534
BEAR CREEK Iowa Good 2021 25.3 m 2,533
UP RR Iowa Fair 1934 59.1 m 2,532
STREAM Iowa Fair 1936 6.4 m 2,530
TURTLE CREEK Iowa Good 1987 40.5 m 2,530
STREAM Iowa Good 1986 22.3 m 2,530
STREAM Iowa Good 1967 11.6 m 2,530
OTTER CREEK Iowa Fair 1970 39.0 m 2,530
UP RR & HARBOR DR Iowa Good 2000 75.9 m 2,527
DRAINAGE Iowa Good 1996 13.4 m 2,520
BR DURIEN CREEK Iowa Fair 1985 39.0 m 2,520
STREAM Iowa Good 1964 7.0 m 2,520
ANSON CREEK Iowa Fair 1967 7.9 m 2,517
I-80 Iowa Fair 1968 96.3 m 2,510
E FORK DES MOINES RIVER Iowa Good 2018 111.9 m 2,510
PRAIRIE CREEK Iowa Fair 1923 19.2 m 2,510
IA 149 Iowa Good 2007 68.6 m 2,500
STREAM Iowa Fair 1955 10.1 m 2,500
STREAM Iowa Fair 1955 9.8 m 2,500
FAYETTE ST Iowa Fair 1994 49.1 m 2,500
BEAR CREEK Iowa Fair 1974 38.1 m 2,498
SMALL NATURAL STREAM Iowa Fair 1999 6.1 m 2,494
US 30 Iowa Fair 1971 85.3 m 2,493

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.