MOBILIZATION FOR THE DELAWARE RIVER MAIN CHANNEL DEEPENING WILL BEGIN AUGUST 17, 2012. GREAT LAKES DREDGE & DOCK COMPANY INTENDS TO USE HORSEHOE SHOAL AS A HOLDING AREA TO ANCHOR AND HOLD DREDGING EQUIPMENT. EQUIPMENT WILL INCLUDE DERRICKS, ANCHOR BARGES AND TUGS. DREDGING IS EXPECTED TO COMMENCE SEPTEMBER 1, 2012 FROM REACH M TO TINICUM RANGE. DREDGE VESSELS WILL BE MONITORING CHANNELS 13 AND 16 AND AT NO TIME DURING THE MOBILIZAION WILL VESSELS BE IN THE DELAWARE RIVER SHIP CHANNEL. MARINERS TRANSITING THROUGH THE AREA ARE TO PROCEED WITH EXTREME CAUTION AND OBEY ALL SAFE NAVIGATION RULES.