  F00541, OPR-N396-NRT3-07; Rectangular obstruction (least depth 29.07 feet/8.86 meters) rising 3.75 feet/1.14 meters above surrounding depths in the vicinity of charted mooring buoy A-11. 47-32-44.5N, 122-39-10.2W.  (Updated 10/2/09 KAK)