Battery 111

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Battery 111 (1944-1947) - Battery 111 was a reinforced concrete, World War II 16 inch coastal gun battery on Fort H.G. Wright, Fishers Island, Suffolk County, New York. Battery construction started 15 Feb 1943, was completed 23 May 1944 and transferred to the Coast Artillery for use 14 Jul 1944 at a cost of $ 1,782,001.00. Not armed. Declared surplus in 1947.

World War II

Part of the Harbor Defense of Long Island Sound.

Originally built as a World War II concrete coastal gun battery for two 16" MarkII-M1 guns mounted on one M4 and one M5 carriage. Work on this battery was ordered curtailed 20 Nov 1943 and the battery was accepted for service without being complete or armed. Both of the guns and both of the carriages were delivered and stored inside the battery as directed. Installation of the battery power units was deferred but commercial power was available.

Gun #105 was transferred to the Ogden depot 6 Apr 1948 and the other gun and both carriages were probably salvaged in place.

Battery 111 Armament (edit list)
Model Serial
Manufacturer Carriage Service
1 16" Rifle 811" MarkII-M1 47 Midvale Casemated Barbette (CBC),
M5, #58, Watertown
Not mounted See note 1
2 16" Rifle 811" MarkII-M1 105 Watervliet Casemated Barbette (CBC),
M4, #36, Mesta
Not mounted See note 1
Source: RCW Form 1, Aug 1944, Coast Defense Study Group, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 2nd Edition, CDSG Press, McLean, VA, 2004, ISBN 0-9748167-0-1, pages 176-177, 205
Note 1: Guns & carriages on site but stored locally. CDSG Gun Card Collection from NARA
Battery 111 Plan

Current Status

No period guns or mounts in place.

Location: Wilderness Point, Fishers Island, Suffolk County, New York

Maps & Images

Lat: 41.255456 Long: -72.007281

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  • Elevation: 45.67'


  • U.S.Army, Supplement to the Harbor Defense Project of Long Island Sound, (HDLIS-AN-45), 15 Feb 1945, CDSG


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