  H9871/76WD-- OPR-515; OLD NAVIGATION BUOY ANCHOR WEIGHT HUNG AT AN EFFECTIVE  DEPTH OF 59 FEET AND CLEARED IN ONE DIRECTION ONLY BY 57 FEET. CHARTED AS AN OBSTRUCTION, CLEARED TO 57 FEET. (4 FT X 4 FT CONCRETE BLOCK, 2 FEET HIGH).
  CL1104/83--ADVANCE