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NavSource Online: Service Ship Photo Archive

YM-18

Awards, Citations and Campaign Ribbons

Precedence of awards is from left to right
American Campaign Medal - Asiatic Pacifice Campaign Medal - World War II Victory Medal

Dredge

Built by Willamette Iron Works, Portland, OR

Launched, 22 May 1912

Completed for Port of Portland Comission as dredge Willamette, August 1912

Sold to Hydraulic Dredging Co., Ltd., Oakland, CA, May 1930

Documented as Willamette (ON 171424), 1932

Towed to Panama by Red Stack tug Sea Ranger, November 1933

Towed from Cristobal to New York by tug Susan A. Moran, arrived January 1934

Sold to Great Lakes Dredge and Dock Co., Chicago, IL, renamed Indiana, 1934

Rebuilt by Bucyrus-Erie & Manitowoc Ship Building Corp., 1935

Acquired by the US Navy, designated YM-18, 1943

During World War II YM-18 was assigned to Service Squadron 12, crewed by 301st NCB

Departed Trinidad for Pacific in tow of WSA tug Sands Point, 22 June 1944

Arrived at Guam aboard ARD-16, 24 October 1944

Worked at Guam, November 1944 - 10 May 1945

Carried in ARD-21 from Guam to Okinawa, 23 June - 01 July 1945

Worked at Baten Ko, Okinawa, July - August 1945

Worked other areas of Okinawa after war's end

Deaprted Okinawa for Guam aboard ARD-13, 22 December 1945 - 01 January 1946

Placed out of service, date unknown

Struck from the Naval Register, 22 January 1948

Final Disposition, believe scuttled in Pacific, 1948

Specifications:
Displacement 1,089 gross tons / 895 net tons
Length 206' 3"
Beam 44' 0"
Draft 10' 8"
Description 30" hydraulic pipeline, steam turbine

Size	Image Description	Contributed By
68k	In operation as commercial dredge *Indiana* in the Great Lakes area, date unknown. Photo from Bowling Green University, Historical Collection of the Great Lakes.	Joe Radigan MACM USN Ret.
68k	YM-18 at work somewhere in the Pacific. Photo from Pictorial Record 301st Naval Construction Battalion	Dave Wright
64k	YM-18 digging at Guam. Digging coral in Apra Harbor, she removed 1,786,000 cubic yards from November 1944 through April 1945. Photo from Pictorial Record 301st Naval Construction Battalion	Dave Wright
80k	Divers patching hull of YM-18 at Guam, 1944-45. Photo from Pictorial Record 301st Naval Construction Battalion	Dave Wright
75k	Dredges YM-18 and USED Point Loma at Guam, late October 1944. Photo Annex A(1), Service Squadron Twelve War Diary, October 1944	Dave Wright

Commanding Officers
01	BOSN Thomas W. Mackie USNR	(1944 - 1945)

There is no DANFS history for YM-18 available at NavSource

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This page was created by Gary P. Priolo and is maintained by David L. Wright

Last Updated 17 May 2019