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
FULTONS CREEK Iowa Fair 1972 31.4 m 1,390
LONGS BRANCH Iowa Good 1970 49.7 m 1,390
LONG BRANCH CREEK Iowa Fair 1970 9.1 m 1,390
CREEK Iowa Fair 1970 17.4 m 1,390
HONEY CREEK Iowa Good 1976 40.8 m 1,390
DRAINAGE DITCH 9 Iowa Good 2003 8.2 m 1,387
STREAM Iowa Good 2003 7.6 m 1,379
OXLEY CREEK Iowa Good 2016 11.9 m 1,379
FOUR MILE CREEK Iowa Fair 1990 50.0 m 1,377
YELLOW RIVER Iowa Fair 1962 8.2 m 1,375
IA 438 Iowa Good 2001 69.5 m 1,375
ELK RUN CREEK Iowa Fair 1971 30.5 m 1,375
TRIB TO ELK RUN CREEK Iowa Fair 1971 11.2 m 1,375
CREEK Iowa Good 2018 31.4 m 1,375
STREAM Iowa Fair 1959 6.1 m 1,375
STREAM Iowa Good 2002 7.3 m 1,375
TROUT RIVER Iowa Good 2002 22.9 m 1,375
THREE MILE CREEK Iowa Good 1989 8.2 m 1,374
STREAM Iowa Fair 1989 9.4 m 1,374
NINE MILE RUN Iowa Fair 1989 42.4 m 1,374
SMALL CREEK Iowa Good 2013 16.2 m 1,370
LITTLE SUGAR CREEK Iowa Fair 1975 34.4 m 1,370
ELK CREEK Iowa Poor 1962 39.0 m 1,370
POYNER CREEK Iowa Good 1983 45.7 m 1,370
SUGAR CREEK Iowa Good 2005 34.7 m 1,370
WEST NODAWAY RIVER Iowa Fair 1972 77.7 m 1,370
US 34 Iowa Fair 2006 120.7 m 1,370
ROCK CREEK Iowa Fair 1996 37.5 m 1,365
BEEDS CREEK Iowa Fair 1961 13.4 m 1,365
SKUNK CREEK Iowa Fair 1985 23.8 m 1,365
SMALL STREAM Iowa Good 2018 22.3 m 1,365
STEWART CREEK Iowa Good 2007 8.8 m 1,365
IOWA RIVER Iowa Poor 1953 163.4 m 1,365
DEER CREEK Iowa Fair 1972 27.7 m 1,363
STREAM Iowa Good 2017 8.2 m 1,360
INDIAN CREEK Iowa Good 2003 62.5 m 1,360
SNIPE CREEK Iowa Good 2009 57.2 m 1,360
MILL CREEK Iowa Poor 1962 38.7 m 1,360
ALLOWAY CREEK Iowa Good 2023 40.5 m 1,360
DRAINAGE DITCH Iowa Good 2020 10.0 m 1,360
I-80 Iowa Fair 1963 71.3 m 1,354
GRAND RIVER Iowa Fair 1985 88.7 m 1,350
ROCK RUN CREEK Iowa Good 2008 6.7 m 1,350
SOAP CREEK Iowa Good 1978 37.5 m 1,350
ELK CREEK Iowa Fair 1985 53.3 m 1,350
BRUSH CREEK Iowa Fair 1985 28.3 m 1,350
FOUR MILE CREEK Iowa Good 2015 8.8 m 1,350
MIDDLE 102 RIVER Iowa Fair 1977 40.5 m 1,350
WEST 102 RIVER Iowa Good 1977 63.7 m 1,350
ROCK RUN CREEK Iowa Fair 2000 27.7 m 1,350

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.