This is a major storm drain project for the City of Rancho Palos Verdes to convey water from the steep McCarrell Canyon through 3,000-feet of pipeline to the beach. KOA was involved in the development of the concept design, selection of the design engineering firm and managing the project all the way through the design phase. The design was developed into an extremely innovative design with numerous fail-safe components. The main components of the project are: A large intake structure; 500-feet of 54-inch
CMP; 2,300-feet of 66-inch steel pipe and a 300-foot slant drain through the bluff to the beach, constructed in a tunneling operation.