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
DRAINAGE DITCH Iowa Fair 1949 15.9 m 1,414
IA 5 Iowa Good 2002 82.6 m 1,414
WILLOW CREEK Iowa Good 1993 123.7 m 1,414
LITTLE CEDAR RIVER Iowa Poor 1974 85.3 m 1,414
JOHNSONS RUN Iowa Good 2024 17.8 m 1,414
US 61 Iowa Good 2000 69.8 m 1,410
MILL CREEK Iowa Poor 1970 52.7 m 1,410
WAPSIPINICON OVERFLOW Iowa Fair 1977 61.3 m 1,410
WAPSIPINICON RIVER Iowa Fair 1977 190.2 m 1,410
PURGATORY CREEK Iowa Fair 1973 40.5 m 1,410
BLUE EARTH RIVER Iowa Fair 1987 40.5 m 1,410
BEAVER CREEK Iowa Good 2020 39.6 m 1,409
BADGER CREEK Iowa Poor 1956 38.7 m 1,404
CRESCENT CREEK Iowa Fair 1976 9.4 m 1,404
BLACK HAWK CREEK Iowa Fair 1974 39.0 m 1,404
BR.FOUR MILE CREEK Iowa Good 1991 7.9 m 1,404
SAYLINGS CREEK Iowa Fair 1967 7.3 m 1,404
BRANCH OF TARKIO CREEK Iowa Good 2003 46.0 m 1,404
STREAM Iowa Fair 1967 10.1 m 1,404
MORGAN CREEK Iowa Fair 1996 39.3 m 1,403
US 18 Iowa Good 2000 61.9 m 1,400
ENGLISH RIVER Iowa Good 1999 125.0 m 1,400
ROCK CREEK Iowa Good 1974 7.9 m 1,400
PAINTER CREEK Iowa Fair 1972 39.3 m 1,400
PAINTER CREEK Iowa Good 1972 46.9 m 1,400
MIDDLE RACCOON RIVER Iowa Good 1980 75.0 m 1,400
2ND ST NE Iowa Fair 1979 151.5 m 1,400
BRUSHY CREEK Iowa Fair 1980 67.4 m 1,400
STREAM Iowa Good 2010 7.6 m 1,400
PITMAN CREEK Iowa Good 1989 54.6 m 1,400
STREAM Iowa Fair 1959 8.8 m 1,400
SO FORK MAQUOKETA RIVER Iowa Fair 1925 25.0 m 1,400
US 6 & RR Iowa Fair 1998 58.5 m 1,400
DRAINAGE DITCH Iowa Fair 1959 14.0 m 1,400
CROW CREEK Iowa Good 1994 13.4 m 1,400
NORTH CREEK Iowa Fair 1950 55.8 m 1,400
STREAM Iowa Fair 1948 6.4 m 1,400
WEST PIGEON CREEK Iowa Fair 1983 8.2 m 1,397
LITTLE FOUR MILE CREEK Iowa Good 2001 17.7 m 1,396
BEAVER CREEK Iowa Fair 1954 77.4 m 1,394
WOLF CREEK BRANCH Iowa Poor 1975 12.2 m 1,394
BEAVER CREEK OVERFLOW Iowa Fair 1980 54.0 m 1,394
CHESALEA CREEK Iowa Good 1972 8.8 m 1,394
CHESALEA CREEK Iowa Fair 1972 8.8 m 1,394
US 34 Iowa Fair 1970 62.8 m 1,391
FULTONS CREEK Iowa Fair 1972 31.4 m 1,390
LITTLE VOLGA RIVER Iowa Good 1992 54.0 m 1,390
CREEK Iowa Fair 1970 39.3 m 1,390
W FK LITTLE SIOUX RIVER Iowa Fair 1964 54.3 m 1,390
CREEK Iowa Fair 1970 17.4 m 1,390

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.