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
HARTS MILL CREEK Iowa Good 1962 8.2 m 1,310
NORTH SKUNK RIVER Iowa Fair 1958 98.8 m 1,310
CREEK Iowa Good 1962 8.2 m 1,310
US 30 Iowa Good 2017 79.2 m 1,310
LOST CREEK Iowa Poor 1953 47.2 m 1,310
E FORK DES MOINES RIVER Iowa Fair 1973 77.6 m 1,307
DES MOINES RIVER Iowa Good 2011 329.2 m 1,300
BNSF RR Iowa Good 2011 92.7 m 1,300
SKUNK RIVER Iowa Fair 1948 102.7 m 1,300
SMALL STREAM Iowa Good 2018 21.3 m 1,300
MOSQUITO CREEK Iowa Good 2001 40.8 m 1,300
ROCK RUN CREEK Iowa Good 1996 6.4 m 1,300
E BRANCH MUD CREEK Iowa Fair 1977 34.7 m 1,300
STREAM Iowa Fair 1959 7.3 m 1,300
WOLF CREEK Iowa Fair 1962 12.2 m 1,300
BRANCH DES MOINES RIVER Iowa Fair 1995 34.4 m 1,300
BLACK HAWK CREEK Iowa Fair 1961 82.3 m 1,296
PRAIRIE CREEK Iowa Fair 1971 47.2 m 1,296
FLOYD RIVER Iowa Fair 1982 64.9 m 1,296
DRY CREEK Iowa Fair 1998 39.0 m 1,296
CREEK Iowa Fair 1977 13.7 m 1,295
DRAINAGE DITCH Iowa Good 1998 6.4 m 1,291
POYNER CREEK Iowa Good 1983 50.9 m 1,290
TWELVE MILE CREEK Iowa Fair 1969 54.6 m 1,290
INDIAN CREEK Iowa Fair 1969 7.9 m 1,290
SMALL STREAM Iowa Fair 1900 8.2 m 1,290
DEDHAM CREEK Iowa Good 2015 7.6 m 1,290
MINNEHAHA CREEK Iowa Fair 1977 28.3 m 1,290
US 34/218 Iowa Good 2001 73.5 m 1,290
DD Iowa Poor 1973 23.8 m 1,287
FOUR MILE CREEK Iowa Good 2003 8.2 m 1,287
OCHEYEDAN RIVER Iowa Poor 1971 61.9 m 1,287
S FORK IOWA RIVER Iowa Fair 1958 51.8 m 1,286
BOONE RIVER Iowa Good 1982 99.1 m 1,282
RELOC US 34 Iowa Good 2007 77.7 m 1,280
PONY CREEK Iowa Fair 1983 15.9 m 1,280
JOHNSON CREEK Iowa Good 1984 43.3 m 1,280
E BR BEAVER DAM CREEK Iowa Good 2014 22.5 m 1,280
LINN CREEK Iowa Fair 1967 38.7 m 1,280
WALNUT CREEK Iowa Fair 1987 32.3 m 1,280
CEDAR CREEK Iowa Fair 1989 65.5 m 1,280
CREEK Iowa Good 1994 23.8 m 1,280
CREEK Iowa Fair 1998 22.9 m 1,280
MUD CREEK Iowa Poor 1940 46.9 m 1,280
CREEK Iowa Good 1994 21.9 m 1,280
WALNUT CREEK Iowa Good 2009 34.4 m 1,280
BIG SIOUX RIVER Iowa Fair 2009 150.9 m 1,277
MAYNES CREEK Iowa Fair 2005 13.1 m 1,277
STOFFERAN CREEK Iowa Fair 1976 11.0 m 1,277
OCHEYEDAN RIVER Iowa Good 2002 74.1 m 1,277

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.