  FE232/80-- OPR-B645-RU/HE-80; UNIDENTIFIED OBSTRUCTION HUNG AT 22 FEET, CLEARED TO 20 FEET ED. HANG NOT INVESTIGATED. ENTIRE 300-METER RADIUS CIRCLE NOT COVERED, 90% COMPLETE. HYDROGRAPHER REPORTS STRONG TIDAL CURRENTS AND WIND (NOVEMBER) HAMPERED OPER