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
MORGAN CREEK Iowa Good 2016 125.1 m 1,530
SPRING CREEK Iowa Fair 1988 13.4 m 1,530
BRUSHY CREEK Iowa Good 1976 59.7 m 1,530
DRAINAGE DITCH Iowa Good 2011 21.5 m 1,530
DRAINAGE DITCH Iowa Good 2018 7.6 m 1,530
OLD MAN CREEK Iowa Good 2005 69.8 m 1,530
TRIB TO KNAPP CREEK Iowa Fair 1972 6.4 m 1,530
UNNAMED STREAM Iowa Good 2014 7.6 m 1,530
RED ROCK CREEK Iowa Good 2023 36.9 m 1,530
SMALL STREAM Iowa Poor 1949 10.7 m 1,530
STREAM Iowa Fair 1922 7.5 m 1,530
WEST NISHNABOTNA RIVER Iowa Fair 1990 75.0 m 1,530
BELL CREEK Iowa Fair 1973 7.6 m 1,530
CREEK Iowa Good 2011 6.7 m 1,530
MOON CREEK Iowa Good 1985 42.1 m 1,530
SUGAR CREEK Iowa Fair 1985 58.8 m 1,530
SMALL NATURAL STREAM Iowa Fair 1969 7.9 m 1,528
DES MOINES RIVER Iowa Good 2000 210.0 m 1,526
N FORK MAQUOKETA RIVER Iowa Fair 1979 38.7 m 1,525
BEAVER CREEK Iowa Fair 1972 75.3 m 1,524
PONY CREEK Iowa Poor 1969 7.3 m 1,524
NISHNABOTNA RIVER Iowa Poor 1961 77.1 m 1,524
BRANCH OF BUCK CREEK Iowa Good 2021 34.4 m 1,524
TURKEY RIVER Iowa Good 2009 45.7 m 1,522
WALNUT CREEK Iowa Good 1984 52.1 m 1,520
DRAINAGE DITCH Iowa Good 1989 10.1 m 1,520
FLOOD CREEK Iowa Fair 1947 37.8 m 1,520
HONEY CREEK Iowa Good 1991 31.4 m 1,520
EAST SOLDIER RIVER Iowa Fair 1953 65.2 m 1,520
DRAINAGE DITCH Iowa Good 1977 6.4 m 1,520
JIM CREEK Iowa Fair 1986 7.6 m 1,520
SHELL ROCK RIVER Iowa Good 1967 158.8 m 1,520
BNSF RR ROAD & CK Iowa Fair 1992 178.9 m 1,520
IA 438 Iowa Fair 2001 69.5 m 1,520
SMALL STREAM Iowa Fair 1958 14.6 m 1,518
MUDDY CREEK Iowa Fair 1951 16.2 m 1,514
WILLOW CREEK Iowa Fair 1966 33.5 m 1,512
ELK RUN CREEK Iowa Good 1984 7.6 m 1,512
DRAINAGE DITCH Iowa Fair 1954 10.7 m 1,510
CLEAR CREEK Iowa Fair 1984 13.4 m 1,510
BRANCH CLEAR CREEK Iowa Fair 1984 11.0 m 1,510
WAPSINONOC CREEK Iowa Poor 1981 39.0 m 1,510
US 18 Iowa Good 1998 68.6 m 1,502
OTTER CREEK Iowa Poor 1971 37.5 m 1,501
IA NR RR Iowa Fair 1936 41.8 m 1,500
MUCKY CREEK Iowa Good 1977 6.7 m 1,500
NORTH SKUNK RIVER Iowa Good 1985 87.2 m 1,500
BUCK CREEK Iowa Fair 1985 52.1 m 1,500
ODEBOLT CREEK Iowa Fair 1994 29.9 m 1,500
ELKHORN CREEK Iowa Good 2003 57.3 m 1,500

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.