A sole source contract modification is being awarded to Tutor Perini Corporation-Nan Inc. JV for critical emergency repairs to the Glass Breakwater at Apra Harbor, Guam. The work addresses damage from Typhoon Bavi and includes bathymetric surveys, hydrodynamic modeling, rock recovery, and placement of armor stone. The estimated value of the modification is $15,000,000. The action is justified by the urgent need to prevent further deterioration of the infrastructure.