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
JOHNSON CREEK Iowa Good 2023 63.1 m 289
N RACCOON RIVER Iowa Good 1953 163.7 m 289
SMALL STREAM Iowa Poor 1934 10.7 m 289
STREAM Iowa Good 1994 7.6 m 289
ALLEN CREEK Iowa Fair 1970 31.7 m 289
WEST MILL CREEK Iowa Good 2001 39.0 m 289
NISHNABOTNA Iowa Good 2012 125.6 m 289
BRANCH OTTER CREEK Iowa Poor 1970 10.7 m 288
LITTLE BEAVER CREEK Iowa Good 2007 15.5 m 288
MOSQUITO CREEK Iowa Fair 1934 56.4 m 288
WALNUT CREEK Iowa Fair 1985 74.1 m 288
CREEK Iowa Fair 1995 15.2 m 285
TRIB TO BLACK HAWK CREEK Iowa Good 2017 10.8 m 285
BLOODY RUN CREEK Iowa Good 2022 28.3 m 285
CREEK Iowa Fair 1919 10.4 m 285
ALRY RUN CREEK Iowa Good 2000 11.6 m 285
WAPSIPINICON RIVER Iowa Poor 1968 8.2 m 285
WAPSIPINICON RIVER Iowa Fair 1968 9.8 m 285
SUGAR CREEK Iowa Good 1998 19.5 m 285
STREAM Iowa Good 1998 25.0 m 285
MALONE CREEK Iowa Fair 1969 38.7 m 285
SHELL ROCK RIVER Iowa Poor 1963 136.6 m 285
CREEK Iowa Fair 1967 11.0 m 285
TIPTON CREEK Iowa Good 2021 33.8 m 285
WOLF CREEK BRANCH Iowa Poor 1972 17.7 m 285
MUD CREEK Iowa Good 1986 34.1 m 284
PERRY CREEK Iowa Good 2011 65.2 m 283
DRY RUN CREEK Iowa Good 2015 9.7 m 283
PERRY CREEK Iowa Good 2016 45.7 m 283
DRAINAGE Iowa Fair 1977 8.2 m 283
SMALL STREAM Iowa Good 2015 13.4 m 283
MASON CREEK Iowa Good 2016 15.0 m 281
COON CREEK Iowa Good 2022 24.7 m 281
HOG THIEF HOLLOW Iowa Fair 1958 6.7 m 280
JORDAN CREEK Iowa Fair 1965 8.8 m 280
SMALL STREAM Iowa Good 1989 6.4 m 280
SOUTH RIVER Iowa Fair 1950 75.6 m 280
FLINT RIVER Iowa Poor 1941 37.2 m 280
SMALL STREAM Iowa Fair 1965 6.4 m 280
NAGLE CREEK Iowa Fair 2007 35.1 m 280
US 30 Iowa Good 2020 93.1 m 280
OTTER CREEK Iowa Good 1996 31.4 m 280
BOYER RIVER Iowa Poor 1964 31.4 m 280
DUCK VALLEY CREEK Iowa Fair 1965 31.1 m 280
HYERS CREEK Iowa Fair 1978 7.3 m 280
SOLDIER CREEK Iowa Good 1994 27.7 m 279
SMALL CREEK Iowa Fair 1977 12.8 m 279
BEAVER CREEK Iowa Fair 1948 55.8 m 279
CAMP CK Iowa Poor 1973 39.0 m 279
TRIB. OF BEAVER CREEK Iowa Poor 1948 7.3 m 279

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.