 The eastern end of Pityilu was cleared and a fleet recreation centre was built that could accommodate up to 10,000 at a time.Construction of the naval base on Los Negros was the responsibility of the 2nd Naval Construction Regiment, with the 11th, 58th and 71st Naval Construction Battalions.Work included a bulk storage at Papitalai for of fuel oil, of distillate, of avgas and of mogas; a 500-bed evacuation hospital; two Liberty ship wharves; 24 warehouses and 83 administration buildings in Quonset huts.