1965 Aerial Imagery

Bad US Levees and the People they Put at Risk
Using the National Levee Database and the 2010 Census
to explore the population and homes at risk because of levees that have been rated "unacceptable".

392 levee and floodwalls that have been rated “unacceptable” leave nearly 7 million people at risk.
Read more here
392 levee and floodwall reaches have been rated “unacceptable.”
These levees protect 13,201,183 acres
Number of Named Census Places with a Bad Levee:
129
Total Number of People/Houses Within in Those Places:
6,789,111 people
2,972,890 houses
Number of US Counties with a Bad Levee:
176
Total Number of People/Houses Within in Those Counties:
39,024,536 people
16,362,823 houses
Number of Census Tracts with a Bad Levee:
5,289
Total Number of People/Houses Within in Those Census Tracts:
21,792,356 people
9,008,954 houses
Links to Interactive Charts
Total Length and Protected Area by State,
Unacceptable Levees
Total Population and Houses per State,
Places with Unnacepptable Levees
Total Length and Protected Area per USACE Division,
Unacceptable Levees
Total Population and Houses per USACE Division,
Places with Unnacepptable Levees
Total Levee Length by System Name,
Unacceptable Levees
Total Leveed Area by System Name,
Unacceptable Levees
Histogram of Year Construction Completed,
Unacceptable Levees
Number of Unacceptable Levees per State

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