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
TRIB CEDAR R Iowa Fair 1997 14.6 m 137
BIG BEAR CREEK Iowa Fair 1983 46.0 m 137
STREAM Iowa Fair 1925 9.4 m 137
ELK CREEK Iowa Poor 2001 19.5 m 137
SILVER CREEK Iowa Good 1990 34.4 m 137
TISSLE HOLLOW CREEK Iowa Fair 2010 14.3 m 137
PRAIRIE CREEK Iowa Good 1986 69.8 m 137
SMALL STREAM Iowa Good 2020 9.3 m 137
SMALL STREAM Iowa Fair 1955 7.9 m 137
BRANCH KITTY CREEK Iowa Fair 1959 25.0 m 137
HOOSIER CREEK Iowa Fair 2008 21.9 m 137
I-380 Iowa Good 1983 81.7 m 137
MID SOUTH CREEK Iowa Good 2017 30.5 m 135
SMALL STREAM Iowa Fair 1984 11.9 m 135
STREAM Iowa Good 2017 15.2 m 135
SMALL STREAM Iowa Poor 1975 7.6 m 135
N BRANCH TURKEY RIVER Iowa Fair 1986 26.5 m 135
BEAVER CREEK Iowa Fair 2001 8.5 m 135
STREAM Iowa Poor 1952 9.8 m 135
N BRANCH TURKEY RIVER Iowa Good 2012 7.3 m 135
SMALL STREAM Iowa Good 2004 6.4 m 135
COX CREEK Iowa Fair 2008 36.6 m 135
INDIAN CREEK Iowa Good 2003 66.4 m 135
CREEK Iowa Good 2019 11.3 m 135
SMALL STREAM Iowa Good 2007 11.6 m 135
STREAM Iowa Fair 2005 15.2 m 135
SMALL STREAM Iowa Good 2016 8.0 m 135
BR UPPER IA RIVER Iowa Good 2008 7.3 m 135
SMALL CREEK Iowa Fair 1900 9.4 m 135
HUNTER CR Iowa Good 2006 34.1 m 135
MIDDLE BRANCH BLUE EARTH Iowa Good 2013 21.5 m 134
WEST OTTER CREEK DD 26 Iowa Good 1997 23.8 m 134
BRANCH SOUTH RIVER Iowa Fair 1975 7.6 m 134
SHORT CREEK Iowa Fair 1949 26.8 m 134
EAST IOWA RIVER Iowa Fair 1975 20.7 m 133
DD 80 Iowa Fair 1975 23.8 m 133
PLUM CREEK Iowa Poor 1960 17.5 m 133
RALSTON CREEK S. BRANCH Iowa Fair 1930 10.7 m 133
MAJOR DRAINAGE Iowa Poor 1970 9.1 m 133
STREAM Iowa Good 2018 13.6 m 133
LITTLE BEAR CREEK Iowa Fair 1960 37.2 m 133
NO NAME CREEK Iowa Good 1982 7.0 m 133
NISHNABOTNA RIVER Iowa Fair 1972 96.3 m 133
BAYOU-NISHNABOTNA Iowa Good 1999 46.6 m 133
BNSF RR Iowa Good 2019 79.9 m 133
STREAM Iowa Fair 1966 7.9 m 133
NORTH RIVER Iowa Good 2024 30.8 m 132
DRAINAGE Iowa Good 2007 8.7 m 132
SKUNK RIVER TRIBUTARY Iowa Poor 1968 9.4 m 132
MAPLE RIVER Iowa Fair 1976 86.3 m 131

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.