A similar four-story structure was built this summer in the New London, Conn., harbor, and has now moved north off Maine. The Day newspaper in Connecticut found details tying that barge to Google in documents obtained through a Freedom of Information Act request.
Santa Clara University law professor Dorothy Glancy said nondisclosure agreements involving inspectors are common for land-bound Silicon Valley construction projects because there are plenty of trade secrets in the clean rooms and laboratories where computer chips are built and technology is developed.
But she said Google might want to take a lesson from another bay-area mystery barge. In the 1970s, billionaire Howard Hughes docked an enormous barge called the Glomar Explorer just off Mountain View, Calif., where Google is now headquartered. Hughes said the Glomar was going to mine manganese from the ocean floor, but in reality it was being used for a top-secret CIA mission to search for nuclear missile codes in sunken Soviet submarines.