What is a slurry wall?
John Hoge, a project manager for the U.S. Army Corps of Engineers Sacramento District, explains what the Sacramento District puts inside Sacramento, Calif., levees to make them better withstand water trying to seep under or through them.
Slurry (or seepage cutoff) walls create a vertical barrier to seepage through or under existing earthen levees. The walls are made of a controlled mixture of soil, cement and bentonite clay. (U.S. Army video by Todd Plain/Released)
More information on the American River Common Features Program can be found at: http://1.usa.gov/SYk9iX