Battery 155 - Costa Mesa

Battery 155 - Costa Mesa (1941-1943) - Battery 155 - Costa Mesa was a temporary, World War II, 155mm coastal gun battery on Panama mounts located in Costa Mesa, Orange County, California. Operated as a sub-post of Fort MacArthur. Battery construction started in December 1941, was completed in September 1943 and transferred to the Coast Artillery for use 11 Sep 1943 at a cost of $ 18,733.87. The late completion and acceptance date reflect the addition of a third Panama mount to the original two. Deactivated in 1943. Battery 155 - Costa Mesa Locale World War II Part of the Harbor Defense of Los Angeles. Originally built as a temporary World War II coastal gun battery with two 155mm M1918MI rapid fire guns mounted on M1918MI mobile marriages emplaced on circular Panama mounts. A third Panama mount was provided in 1943 but only two guns were ever provided. 155mm M1918 Gun at Fort Morgan Panama Mount at Fort Pickens Battery 155 - Costa Mesa Armament (edit list) Empl No Caliber Type Barrel Length Model Serial No Manufacturer Carriage Service Dates Notes 1 155mm Rifle 240" M1918MI M1 ..... ..... Mobile, M1918MI, #....., ..... 1941-1943 2 155mm Rifle 240" M1918MI M1 ..... ..... Mobile, M1918MI, #....., ..... 1941-1943 3 155mm Rifle 240" M1918MI M1 ..... ..... Mobile, M1918MI, #....., ..... 1941-1943 Source: CDSG, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 2nd Edition, CDSG Press, McLean, VA, 2004, ISBN 0-9748167-0-1, pages 190-191 Battery 155 - Costa Mesa Plan Current Status No period guns or carriages in place. Panama mounts destroyed. Location: Costa Mesa, Orange County, California. Map point is approximate. Maps & Images Lat: 33.625430 Long: -117.942645 Multi Maps from ACME Maps from Bing Maps from Google Elevation: Gun #1 = 63.57', Gun #2 = 63.5', Gun #3 = 64.0' Sources: U.S.Army, Supplement to the Harbor Defense Project Harbor Defenses of Los Angeles, (LA-AN-WDC-44), 31 Aug 1944, CDSG Links: CDSG Visited: 8 Jan 2013