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
PRAIRIE CREEK Iowa Good 1991 11.0 m 1,250
DRAINAGE DITCH Iowa Fair 1957 7.6 m 1,250
DRAINAGE DITCH Iowa Fair 1957 7.6 m 1,250
DRAINAGE DITCH Iowa Fair 1974 28.3 m 1,250
BRANCH PLATTE RIVER Iowa Fair 2003 58.2 m 1,250
E BR WAPSIPINICONRIVER Iowa Good 1976 67.4 m 1,250
PLUMB CREEK Iowa Fair 1976 40.5 m 1,250
BRANCH MIDDLE AVERY CRK Iowa Good 2008 46.6 m 1,250
ST MARYS DITCH Iowa Good 1995 6.7 m 1,247
RAINES BRANCH Iowa Fair 1947 30.5 m 1,246
WALNUT CREEK Iowa Fair 1969 7.9 m 1,246
I-29 Iowa Fair 1977 79.6 m 1,245
DRY RUN CREEK Iowa Fair 1958 9.8 m 1,244
CREEK Iowa Good 1970 7.6 m 1,241
BUCK CREEK Iowa Good 1967 53.0 m 1,240
WAPSIE RIVER OVERFLOW Iowa Fair 1967 23.5 m 1,240
WAPSIPINICON RIVER Iowa Fair 1989 118.6 m 1,240
STREAM Iowa Fair 1941 7.0 m 1,240
TURKEY CREEK Iowa Fair 1987 34.4 m 1,240
CALEB CREEK Iowa Good 2023 60.0 m 1,240
STREAM Iowa Good 2016 7.9 m 1,240
STREAM Iowa Good 1995 7.0 m 1,240
BUFFALO CREEK Iowa Good 1995 69.8 m 1,237
OTTER CREEK Iowa Good 1984 35.4 m 1,237
DRAINAGE Iowa Good 1999 8.8 m 1,236
SMALL Iowa Good 2006 9.8 m 1,236
CREEK Iowa Good 1999 26.8 m 1,236
PLYMOUTH CR Iowa Fair 1974 38.1 m 1,236
BRANCH HUNTER CREEK Iowa Good 1994 7.9 m 1,230
STREAM Iowa Fair 1951 12.2 m 1,230
REYNOLDS CREEK Iowa Fair 1952 37.2 m 1,230
COON CREEK Iowa Fair 1986 10.4 m 1,230
SMALL STREAM Iowa Good 2000 34.1 m 1,230
DRAINAGE DITCH Iowa Good 1951 13.1 m 1,230
SMALL STREAM Iowa Fair 1983 10.1 m 1,230
CARRS CREEK Iowa Fair 1974 8.2 m 1,230
DRAINAGE DITCH Iowa Fair 1952 8.8 m 1,230
COOK CREEK Iowa Fair 1957 6.4 m 1,230
WILLOW CREEK Iowa Fair 1991 82.6 m 1,230
PRARIE CREEK DD Iowa Good 2000 25.3 m 1,230
SMALL Iowa Good 1998 6.4 m 1,230
ENGLISH RIVER Iowa Good 2006 203.3 m 1,230
SMALL NATURAL STREAM Iowa Good 2015 7.6 m 1,230
N BRANCH HONEY CREEK Iowa Fair 1958 11.9 m 1,230
HONEY CREEK Iowa Fair 1958 8.8 m 1,230
SOUTH CLANTON CREEK Iowa Good 1974 11.6 m 1,230
PRAIRIE CREEK Iowa Good 2022 54.7 m 1,230
US 20 Iowa Good 1968 66.8 m 1,230
STREAM Iowa Fair 1981 7.3 m 1,230
ELWOOD CREEK Iowa Fair 1952 11.3 m 1,230

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.