They left rainbow bridge and headed down the channel towards navajo canyon. The sun was setting so it made it difficult to see the discoloration of shallow water but stayed in the middle of the channel.  As they came around the corner  operator saw shallow water turned off the boat but still hit the rock just under the surface. V1 continued down lake an est. Of 8 miles before it was inoperable due to large amount of water entering the vessel.. Fiberglass damage above the propeller 5"x4".  Drive shaft bracket was broken and caused fiberglass damage 2"x4".  Drive shaft seal was also broken which allowed water to enter the vessel.
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