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NavSource Online: Service Ship Photo Archive


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

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

    Click On Image
    For Full Size Image
    Size Image Description Contributed
    YM-18 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.
    YM-18 68k YM-18 at work somewhere in the Pacific.
    Photo from Pictorial Record 301st Naval Construction Battalion
    Dave Wright
    YM-18 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
    YM-18 80k Divers patching hull of YM-18 at Guam, 1944-45.
    Photo from Pictorial Record 301st Naval Construction Battalion
    Dave Wright
    YM-18 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
    01BOSN Thomas W. Mackie USNR(1944 - 1945)

    There is no DANFS history for YM-18 available at NavSource
    Back To The Navsource Photo Archives Main Page Back To The Service Craft Index Back To The Dredge (YM) Photo Index
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    This page was created by Gary P. Priolo and is maintained by David L. Wright
    All pages copyright NavSource Naval History
    Last Updated 17 May 2019