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
RACCOON RIVER Iowa Poor 1976 35.1 m 1,228
BUCK CREEK Iowa Fair 1979 49.4 m 1,228
EAST BR INDIAN CREEK Iowa Fair 1976 38.1 m 1,228
DD #28 Iowa Fair 1996 9.1 m 1,228
DRAINAGE DITCH #28 Iowa Fair 1987 13.4 m 1,228
RUPPLE CREEK Iowa Fair 1971 7.9 m 1,228
ODEBOLT CREEK Iowa Good 1984 7.6 m 1,228
UNNAMED CREEK Iowa Fair 2015 9.6 m 1,225
BACON CREEK Iowa Good 1997 21.6 m 1,225
DRAINAGE Iowa Good 2017 9.6 m 1,225
STREAM Iowa Fair 1975 7.0 m 1,223
RAPID CR Iowa Fair 1930 10.4 m 1,220
AMES CREEK Iowa Poor 1971 23.8 m 1,220
BRANCH SUGAR CREEK Iowa Good 1987 9.8 m 1,220
DRAINAGE Iowa Good 2000 7.9 m 1,220
MAPLE RIVER Iowa Fair 1972 71.9 m 1,220
DRAINAGE DITCH Iowa Fair 1973 7.9 m 1,220
DRAINAGE DITCH Iowa Good 1973 7.6 m 1,220
DRAINAGE DITCH Iowa Fair 1973 9.8 m 1,220
DRAINAGE DITCH Iowa Good 1973 9.8 m 1,220
MAPLE RIVER Iowa Good 2022 92.2 m 1,220
BRANCH OF PRAIRIE CREEK Iowa Good 1999 7.6 m 1,220
MUCKY CREEK Iowa Fair 1973 29.9 m 1,220
UP RR Iowa Good 1987 54.9 m 1,220
DRAINAGE DITCH Iowa Fair 1973 13.7 m 1,220
DRAINAGE DITCH Iowa Fair 1951 6.4 m 1,220
MCCARTY CREEK Iowa Good 2022 25.3 m 1,220
MCCARTY CREEK Iowa Good 2022 25.3 m 1,220
SILVVER CREEK Iowa Good 2002 14.3 m 1,218
BEAR CREEK Iowa Fair 1997 39.0 m 1,218
US 20 Iowa Good 1980 81.7 m 1,218
WEST BR INDIAN CREEK Iowa Good 2005 6.7 m 1,217
CREEK Iowa Fair 2003 11.6 m 1,216
SPRING CREEK Iowa Fair 1968 61.3 m 1,215
ANSON CREEK Iowa Fair 1975 23.8 m 1,213
LITTLE WALNUT CREEK Iowa Good 2007 37.5 m 1,211
BIG CEDAR CREEK Iowa Fair 1968 31.4 m 1,210
PECHMAN CREEK Iowa Fair 1976 31.4 m 1,210
BUCK CREEK Iowa Fair 1964 31.4 m 1,210
FLINT RIVER Iowa Poor 1960 46.3 m 1,210
OVERFLOW NISHNABOTNA Iowa Fair 1973 43.3 m 1,210
EAST NISHNABOTNA RIVER Iowa Fair 1960 98.8 m 1,210
SKINAWAY CREEK Iowa Good 1987 9.4 m 1,210
COE CREEK Iowa Good 1974 10.4 m 1,210
BEAR CREEK Iowa Good 2023 55.2 m 1,210
OVER UP RR Iowa Poor 1940 32.3 m 1,210
US 30 Iowa Good 2019 71.6 m 1,208
SMALL NATURAL STREAM Iowa Poor 1959 46.9 m 1,207
TRIB TO CEDAR RIVER Iowa Good 1988 6.7 m 1,206
CREEK Iowa Good 2013 6.7 m 1,205

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.