PHOTO IDENTIFICATION: Clockwise from top left--1) 750 feet long levee excavation; 2) sample of cellular concrete, note 'sponge-like' structure; 3) first concrete is pumped into fiberglass-lined berm base; 4) completed berm with soil covering; 5) workmen begin filling first levee layer; 6) computer center controls the cellular "mix"; 7) "Elastizell" cellular mixing station; 8) long-range view of the main levee from west end with all five layers poured; 9 & 10) early photos of main levee base looking west; 11 & 12) early photos of berm base being poured. Berm gets only a 2-foot base; main levee has 2-foot base and four additional layers of 1-foot thick each.
The pyramid-shaped levee is finally covered with clay followed by local soil.
The cellular concrete being used can also be used less expensively as a base for other construction projects, such as a roadbed, instead of compacted dirt.
