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
SPRING CREEK Iowa Fair 1975 30.5 m 597
DD Iowa Poor 1959 55.5 m 597
ELKHORN CREEK Iowa Fair 1971 47.5 m 597
DIVERSION DITCH Iowa Poor 1962 82.6 m 597
MONKEY RUN Iowa Good 2019 11.9 m 595
SMALL STREAM Iowa Fair 1959 7.6 m 593
SKUNK RIVER Iowa Fair 1976 196.3 m 590
EAST BUTTRICK CREEK Iowa Good 2022 15.9 m 590
S. FORK LONG CREEK Iowa Good 1992 43.0 m 590
SMALL STREAM Iowa Good 1990 6.7 m 590
PCC TRAIL Iowa Fair 1999 6.4 m 590
BR TO DES MOINES RIVER Iowa Fair 1968 23.8 m 590
CRANE CREEK Iowa Poor 1968 46.6 m 590
WHITE WATER CREEK Iowa Fair 1988 8.2 m 590
JOHNS CREEK Iowa Fair 1991 27.7 m 590
OTTER CREEK Iowa Fair 1951 11.3 m 590
LOST CREEK Iowa Fair 1983 39.0 m 590
LITTLE SIOUX RIVER Iowa Good 1989 118.9 m 590
SMALL CREEK Iowa Good 1986 11.9 m 589
KEIGLEY CREEK Iowa Good 1999 9.1 m 589
CREEK Iowa Good 1984 31.4 m 589
BEAR CR Iowa Poor 1930 6.7 m 589
SILVER CREEK Iowa Poor 1969 31.4 m 589
SIMPSON CREEK Iowa Fair 1986 13.1 m 589
WILLOW CREEK Iowa Fair 1967 39.0 m 589
ODEBOLT CREEK Iowa Poor 1964 31.4 m 589
BUFFALO CREEK Iowa Fair 1969 7.0 m 589
BIG SIOUX RIVER Iowa Fair 1967 136.2 m 589
DD #181 BIG BEAR CK Iowa Fair 1973 27.7 m 589
S LIZARD CREEK DD#22 Iowa Fair 1982 23.8 m 589
BRANCH WILLIAMS CREEK Iowa Fair 1958 9.4 m 589
WILLIAMS CREEK Iowa Fair 1958 40.2 m 589
LIZARD CREEK Iowa Fair 1985 27.7 m 589
BRANCH WILLIAMS CREEK Iowa Fair 1958 9.4 m 589
YELLOW RIVER Iowa Fair 1968 54.3 m 589
BRANCH WILLIAMS CREEK Iowa Fair 1958 9.4 m 589
CRANE CREEK Iowa Fair 1981 42.4 m 589
HONEY CREEK Iowa Poor 1973 45.7 m 589
JACK CR DD #17 Iowa Good 2019 34.7 m 589
BEAVER DAM CREEK Iowa Fair 1973 22.9 m 589
WESTFIELD CREEK Iowa Good 1987 6.4 m 589
SPRING CREEK Iowa Good 2016 38.7 m 589
SMALL STREAM Iowa Good 1986 13.7 m 589
ELK CREEK Iowa Good 2012 43.6 m 589
TRIB OF PANTHER CREEK Iowa Good 2023 6.9 m 588
SMALL STREAM Iowa Good 1984 7.3 m 588
I 35 Iowa Fair 1969 100.9 m 588
SKUNK RIVER Iowa Good 1961 99.4 m 588
E BR W NISHNABOTNA RIVER Iowa Fair 1972 77.4 m 588
SHORT CREEK Iowa Good 1989 6.7 m 587

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.