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
W BR BLUE EARTH RIVER Iowa Good 2016 37.1 m 159
MOSER CREEK Iowa Fair 1981 39.0 m 159
W FK W NISHNABOTNA RIVER Iowa Fair 1973 67.4 m 159
BROKEN KETTLE CREEK Iowa Poor 1960 45.7 m 159
SMALL STREAM Iowa Good 2007 7.0 m 159
BUFFALO CREEK Iowa Poor 1965 26.5 m 159
STREAM Iowa Fair 1963 6.7 m 159
BRUSHY CREEK Iowa Good 1993 23.8 m 159
BRUSHY CREEK SPILLWAY Iowa Good 1998 56.4 m 159
WALNUT CREEK Iowa Good 1996 21.9 m 159
MIDDLE BRANCH BLUE EARTH Iowa Good 2011 30.8 m 159
CREEK Iowa Good 2011 24.7 m 159
I-80 Iowa Good 1968 71.9 m 159
MUD CREEK Iowa Good 1990 42.4 m 159
LOTTS CREEK Iowa Fair 1966 39.3 m 159
I-80 Iowa Good 1965 69.2 m 159
UNNAMED DRAINAGE Iowa Good 2015 9.8 m 159
BEAVER CREEK Iowa Good 2020 28.3 m 159
S BRANCH RALSTON CREEK Iowa Good 2022 10.4 m 158
N TIMBER CR Iowa Fair 1989 62.5 m 157
LITTLE TURKEY CREEK Iowa Good 2004 57.6 m 157
STREAM Iowa Fair 1998 8.2 m 157
CREEK Iowa Good 2005 9.1 m 157
PRAIRIE CREEK Iowa Good 2015 50.9 m 157
SMALL Iowa Fair 1978 6.4 m 157
SMALL STREAM Iowa Fair 1961 6.4 m 157
MAQUOKETA RIVER Iowa Good 1986 50.0 m 157
EAST WAPSIPINICON RIVER Iowa Good 1989 43.3 m 157
STREAM Iowa Good 2005 8.2 m 157
SMALL Iowa Fair 1979 13.1 m 157
PINE CREEK Iowa Good 2016 13.7 m 157
BUCK CREEK Iowa Fair 1969 22.6 m 157
ROBERTS CREEK Iowa Fair 1957 8.2 m 157
SMALL STREAM Iowa Fair 1968 11.0 m 157
NELSON CREEK Iowa Fair 1992 14.3 m 157
CRANE CREEK Iowa Poor 1959 68.9 m 157
LITTLE TURKEY Iowa Good 2010 11.6 m 157
CREEK Iowa Good 1995 7.0 m 157
VOLGA RIVER NORTH BRANCH Iowa Fair 1997 9.4 m 157
SUGAR CREEK Iowa Fair 1984 39.0 m 157
VILLAGE CREEK Iowa Good 2022 14.0 m 157
VILLAGE CREEK Iowa Poor 1966 14.0 m 157
VILLAGE CREEK Iowa Good 2022 11.6 m 157
SMALL STREAM Iowa Fair 1984 10.4 m 157
LINN CR Iowa Poor 1916 12.8 m 157
LITTLE TURKEY RIVER Iowa Good 1995 47.2 m 157
MUD CREEK Iowa Fair 1967 25.3 m 155
ELK CREEK Iowa Fair 2000 12.8 m 155
STREAM Iowa Good 2016 9.4 m 155
US 20 Iowa Good 1984 82.9 m 155

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.