Mare Island is approximately
3.5 miles long and one mile wide. Located on the western edge of Vallejo,
approximately 30 miles northeast of San Francisco in the North Bay subregion
of the San Francisco Bay Area.
During 1854, the U. S. Navy (USN) established Naval Magazine, NSY Mare Island. The shipyard’s
primary missions was to maintain, overhaul and refuel
warships. Also known as "Mare Island Navy Yard".
World War I
In 1918, Mare Island Navy Yard set a
record that has never broken, building destroyer USS
Ward in 17 1/2 days.
World War II
In total, Mare Island
Navy Yard built 17 submarines, 4 subtenders, 31 destroyer escorts,
33 small craft, and more than 300 landing craft. During the Pacific War, Mare Island was an important location for overhauls and repairs for U. S. Navy warships and vessels. During 1943, HA-19 Type A midget submarine was dispalyed at Mare Island and seen by U. S. President F. D. Roosevelt.
1993, the Department of Defense (DoD) Base Realignment
and Closure (BRAC) Commission recommended the closure
of Mare Island NSY in the "third round" (BRAC
3) of military closures. The operational closure of Mare
Island NSY was completed in April 1996.
Sunk March 1966 off Mare Island
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June 15, 2019