In 1929, the University of California established the San Francisco Airdrome located near the current Webster Street tube as a public airport. The Bay Airdrome had its gala christening party in 1930. The airfield was a busy place, as an early home base for Coastal Air Freight, Varney Air Lines, West Coast Air Transport, Western Air Express, the Transbay Air Ferries, and Boeing's Pacific Air Transport. The Airdrome was closed in 1941 when its air traffic interfered with the newly built Naval Air Station Alameda (NAS Alameda). With the advent of World War II, a vast stretch of the marshy area southwest of the Alameda Mole was filled and the NAS Alameda established. This major Naval facility included a large airfield, as well as docks for several aircraft carriers. It closed in 1997.