Battery Hasbrouck

Battery Hasbrouck (1914-1943) - Battery Hasbrouck was a reinforced concrete, Taft Period 12 inch coastal mortar battery on Fort Kamehameha, Honolulu County, Hawaii. The battery was named in G.O. 59, 1911 after Brigadier General Henry C. Hasbrouck (Cullum 1908). Battery construction started in July 1909, was completed in October 1914 and transferred to the Coastal Artillery for use 10 Nov 1914 at a cost of $ 274,160.65. Deactivated in 1943.

Taft Period (1905-1915)

Part of the Harbor Defense of Pearl Harbor.

Originally built as an Taft Period concrete coastal mortar battery with eight 12" M1908 mortars mounted on M1908 mortar carriages divided into two mortar pits (A-B) with four mortars in each pit (1-4).

Shells and powder were wheeled from the magazine to the mortar loading platforms on shot carts.

**Battery Hasbrouck Armament** (edit list)
Empl No	Caliber Type	Barrel Length	Model	Serial No	Manufacturer	Carriage	Service Dates	Notes
A1	12" Mortar	142"	M1908	16	Watervliet	Mortar, M1908, #16, Southwark	1914-1943	See note 1
A2	12" Mortar	142"	M1908	15	Watervliet	Mortar, M1908, #15, Southwark	1914-1943	See note 1
A3	12" Mortar	142"	M1908	14	Watervliet	Mortar, M1908, #14, Southwark	1914-1943	See note 1
A4	12" Mortar	142"	M1908	7	Watervliet	Mortar, M1908, #13, Southwark	1914-1943	See note 1
B1	12" Mortar	142"	M1908	20	Watervliet	Mortar, M1908, #5, Watertown	1914-1943	See note 1
B2	12" Mortar	142"	M1908	17	Watervliet	Mortar, M1908, #6, Watertown	1914-1943	See note 1
B3	12" Mortar	142"	M1908	19	Watervliet	Mortar, M1908, #7, Watertown	1914-1943	See note 1
B4	12" Mortar	142"	M1908	18	Watervliet	Mortar, M1908, #8, Watertown	1914-1943	See note 1
Source: RCW Form 1, 6 Feb 1935, CDSG, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 2nd Edition, CDSG Press, McLean, VA, 2004, ISBN 0-9748167-0-1, pages 152-153 Note 1: Mortars and carriages ordered salvaged 1 May 1945 CDSG Gun Card Collection from NARA

World War I

The U.S. entry into World War I resulted in a widespread removal of large caliber coastal defense gun tubes for service in Europe. Many of the gun and mortar tubes removed were sent to arsenals for modification and mounting on mobile carriages, both wheeled and railroad. Most of the removed gun tubes never made it to Europe and were either remounted or remained at the arsenals until needed elsewhere.

World War II

Current Status

Located on Hickam Air Force Base. Battery still exists as repurposed buildings. No period guns or mounts in place.

USGS Geographic Names Information System (GNIS) Database Entry: 1946871

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Location: Hickam Air Force Base, Honolulu, Honolulu County, Hawaii

Maps & Images

Lat: 21.3249982 Long: -157.9613185

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Elevation: 13' 6" (trunion elevation)

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