[2] In January 1947, the 104th was reactivated and first began their Amphibious mission when the unit was tasked with "the assembly and placement of pontoon structures, beach rehabilitation, harbor development, salvage, and training of reservist in these operations".

This time they landed at the port city of Wonsan as part of the 1st Marine Division's shift from the Inchon-Seoul area to the northeast coast of Korea.

While the Marines moved north to positions in the Chosin Reservoir area, the Seabees built piers and unloaded ships.

Operation Crippled Chick: The assignment to build the emergency landing strip behind enemy lines on Yo Do island, fell to ACB-1s Detachment George.

Rowe, Detachment George was composed of one warrant machinist, six chief petty officers and 69 Seabee enlisted men.

Moving over 1,200 short tons (1,100 t) of cargo, on nine C-5 Galaxy aircraft, the PHIBs constructed the largest Logistics Support Area (LSA) in ACB history, housing over 4,500 personnel.

In recognition of outstanding services rendered in the Korean War, personnel of the Battalion received three Bronze Stars, eight Navy Commendations with Combat "V"s, the Presidential Unit Citation, the Korean Presidential Unit Citation, and numerous letters of recognition for meritorious services.

Additionally, the command was awarded a Secretary of the Navy, John Howard Dalton, Letter of Commendation for meritorious service from 1994 to 1996.