Hawaiian AMTB Batteries

 (B) 21.31581, -157.98760, Battery AMTB - Fort Weaver (B) 21.28970, -157.84851, Battery AMTB - Ala Moana Park (B) 21.30058, -157.86983, Battery AMTB - Sand Island (B) 21.27902, -157.83512, Battery AMTB - Fort De Russy (B) 21.46194, -157.76401, Battery AMTB - Pyramid Rock (B) 21.51012, -157.83615, Battery AMTB - Kualoa

Hawaiian AMTB Batteries (1943-1945) - In 1942 the Hawaiian Coast Artillery Chief, Major General Henry T. Burgin, initiated action to construct six AMTB batteries, two each for Pearl Harbor, Honolulu, and Kaneohe Bay. Construction of the six AMTB batteries began in July 1943, and was completed by the end of 1943. The AMTB batteries normally involved two fixed and two mobile 90mm and some supporting 37mm guns. The AMTB batteries had dual missions of harbor protection from fast motor torpedo boats and anti-aircraft defense.

Battery AMTB - Sand Island
The two fixed AMTB guns for Sand Island arrived and were in place by 6 Aug 1943, work continued on Sand Island until 14 Sep 1943. The facilities on sand island included barracks, an office, gun emplacements, splinter proof bunkers and magazines.

Battery AMTB - Kualoa
Sources:
 * Gaines, William C., A History of Fort De Russy, The Coast Defense Study Group Journal, Vol 24, Issue 4, November 2010, page 47-95