Group Delta Consultants (GDC) conducted a Marine Geotechnical Survey for the US Navy for the preliminary design of an open ocean pier at San Nicolas Island in the Santa Barbara channel offshore the Southern California coast.

Project Highlights :

• GDC provided two alternatives piles for foundation design in the shallow bedrock area
• Subsurface exploration consisted of drilling a total of five borings drilled by using a submersible seafloor-supported rock coring drill rig operated by divers.
• Use of underwater rock coring rig saved the Navy over $100,000 compared to the use of a normal drill ship