American workshop floating drydock (machinery) YRD (M) 8 in 1945

Dimensions 150.0 x 34.0 feet.  Built by Puget Sound Bridge&Dredging Co., Seattle, Washington, non-self-propelled.

Source

Bureau of Ship. Navy Department. Ships’ Data US Naval Vessels. Vol III. Auxiliary, district craft and unclassified vessels, 15 April 1945