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
HUNTER CREEK Iowa Good 1986 23.8 m 2,330
OTTER CREEK Iowa Fair 1986 50.9 m 2,330
I-80 Iowa Fair 1966 69.5 m 2,330
DME RR Iowa Good 1993 59.1 m 2,330
CEDAR RIVER Iowa Good 2024 177.1 m 2,327
WORRELL CREEK Iowa Fair 1966 8.2 m 2,324
SMALL Iowa Good 2004 8.2 m 2,324
DRAINAGE DITCH Iowa Fair 1975 30.2 m 2,320
LITTLE LICK CREEK Iowa Fair 1967 74.4 m 2,320
IA 163 Iowa Good 1996 96.0 m 2,320
I-80 Iowa Good 1962 66.4 m 2,320
WEST NISHNABOTNA RIVER Iowa Fair 1929 108.2 m 2,320
I-35 Iowa Fair 1970 90.8 m 2,318
HYERS CREEK Iowa Good 2012 21.3 m 2,315
SMITH CREEK Iowa Fair 1969 77.1 m 2,310
BIG ELKHORN CREEK Iowa Fair 1997 31.4 m 2,310
WAPSI RIVER OVERFLOW Iowa Poor 1922 83.8 m 2,310
WAPSIPINICON RIVER Iowa Fair 1965 111.6 m 2,310
PHELPS CREEK Iowa Good 2011 8.5 m 2,300
UPRR Iowa Good 2001 92.1 m 2,300
COAL CREEK Iowa Fair 1969 14.9 m 2,300
DRAINAGE Iowa Good 1999 57.3 m 2,300
SMALL NATURAL STREAM Iowa Fair 1931 7.6 m 2,300
HEATHS CREEK Iowa Fair 1963 6.7 m 2,290
DEEP CREEK Iowa Good 1984 82.0 m 2,290
DD NO 247 Iowa Poor 1974 23.8 m 2,284
STREAM Iowa Fair 1963 7.9 m 2,281
BLUEGRASS CREEK Iowa Fair 1976 40.8 m 2,280
FOUR MILE CREEK Iowa Fair 1971 6.7 m 2,280
I-80 Iowa Fair 1959 66.8 m 2,280
WAPSIPINICON RIVER Iowa Fair 1978 80.5 m 2,280
WAPSIPINICON OVERFLOW Iowa Good 1978 28.3 m 2,280
SOUTH FORK LONG CREEK Iowa Fair 1979 17.4 m 2,280
RAILROAD CREEK Iowa Fair 1949 16.8 m 2,279
WINNEBAGO RIVER Iowa Fair 1914 35.4 m 2,278
W BR LITTLE SIOUX RIVER Iowa Fair 1967 7.6 m 2,277
OCHEYEDAN RIVER Iowa Good 2012 74.1 m 2,273
DES MOINES RIVER Iowa Good 2007 208.8 m 2,270
TROUBLESOME CREEK Iowa Good 1993 53.3 m 2,270
EAST NISHNABOTNA RIVER Iowa Fair 1959 86.9 m 2,270
US 30 W JCT Iowa Fair 1980 111.3 m 2,270
CHARITON RIVER Iowa Good 1988 71.3 m 2,270
WESTFIELD CREEK Iowa Good 1976 52.1 m 2,270
FROG CREEK Iowa Good 2018 9.6 m 2,269
SHELL ROCK RIVER Iowa Good 2013 62.5 m 2,268
CHICAGO CENTRAL RAILROAD Iowa Good 2016 103.4 m 2,268
I-35 Iowa Fair 1958 61.6 m 2,262
LITTLE BEAVER CREEK Iowa Good 1961 12.2 m 2,260
BEAVER CREEK Iowa Fair 1990 52.1 m 2,260
STREAM Iowa Good 1979 6.4 m 2,260

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.