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
WILLIAMS CREEK Iowa Poor 1936 18.3 m 1,650
SPRING CREEK Iowa Good 2014 42.9 m 1,650
SMALL CREEK Iowa Fair 1998 7.9 m 1,650
SMALL CREEK Iowa Fair 1998 34.4 m 1,650
DRAINAGE DITCH Iowa Fair 1966 6.3 m 1,650
LITTLE WAPSIPINICON Iowa Good 1996 74.1 m 1,650
ELK CREEK Iowa Good 2016 33.8 m 1,650
PINE CREEK Iowa Good 1991 18.9 m 1,650
MAPLE CREEK Iowa Fair 1957 38.7 m 1,650
IOWA RIVER OVERFLOW Iowa Fair 1922 6.4 m 1,650
E BRANCH IOWA RIVER Iowa Good 2015 52.2 m 1,650
NORTH RIVER Iowa Good 1955 92.7 m 1,649
ROCK CREEK Iowa Good 1982 7.9 m 1,649
DRAINAGE Iowa Fair 1989 7.6 m 1,640
ROCK CREEK Iowa Fair 1956 38.7 m 1,640
BNSF RR Iowa Fair 2006 106.7 m 1,640
OVERFLOW FROM SUGAR CRK Iowa Poor 1971 39.0 m 1,640
BNSF RR Iowa Fair 1972 86.6 m 1,640
MORGAN CREEK Iowa Good 2016 131.1 m 1,640
MORGAN CREEK Iowa Good 2016 131.1 m 1,640
BLACK HAWK CREEK Iowa Fair 1973 53.3 m 1,638
DRAINAGE Iowa Good 1973 13.7 m 1,638
ODEBOLT CREEK Iowa Poor 1972 54.6 m 1,635
LINN CREEK Iowa Good 2007 31.4 m 1,630
SUGAR CREEK Iowa Good 2021 63.1 m 1,630
DRAINAGE DITCH Iowa Fair 1976 10.1 m 1,630
CRANE CREEK Iowa Fair 1976 40.5 m 1,630
OVER BNSF RR Iowa Fair 1986 58.5 m 1,630
DRAINAGE DITCH Iowa Poor 1953 114.9 m 1,630
DRAINAGE DITCH Iowa Poor 1953 93.6 m 1,630
STREAM Iowa Poor 1953 114.9 m 1,630
BR PLUM CR Iowa Fair 1989 6.4 m 1,630
CEDAR RIVER Iowa Fair 1906 204.2 m 1,629
RELOC US 30 Iowa Good 2010 57.9 m 1,628
DRAINAGE DITCH #70 Iowa Fair 1969 8.2 m 1,626
IA 60 Iowa Good 2006 83.8 m 1,626
I-80 Iowa Fair 1966 74.7 m 1,623
US 34 & 275 Iowa Fair 1973 100.0 m 1,623
MIDDLE RACCOON RIVER Iowa Good 2005 46.0 m 1,623
GENEVA CREEK Iowa Fair 1980 30.5 m 1,620
IOWA RIVER Iowa Fair 1976 72.5 m 1,620
STREAM Iowa Fair 1976 37.8 m 1,620
GREENBRIER CREEK Iowa Good 1993 29.9 m 1,620
TIPTON CREEK Iowa Good 2003 57.9 m 1,620
DRY BRANCH CREEK Iowa Good 2023 58.5 m 1,620
DRAINAGE DITCH Iowa Fair 2009 34.7 m 1,620
DRAINAGE Iowa Fair 1977 30.5 m 1,615
DRAINAGE DITCH Iowa Fair 1955 10.7 m 1,611
CEDAR RIVER Iowa Poor 1912 201.2 m 1,610
SIMMONS CREEK Iowa Fair 1964 23.5 m 1,610

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.