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post #16 of Old 02-01-2012
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I don’t know if it has been mentioned before, but Harding, Arch, Shag and Blossom were all on the surface up until the turn of the century (20th that is). The corps drilled and blasted them using the technology of the day which only got them down to their present 35 feet. They would love to “lower” them some more but anchoring a barge and drill over them given the currents isn’t very practical. Have no fear, the Panamax and supermax ships only go to Oakland so they pass on the San Francisco side of Alcatraz and Blossom. The Bay is over 90 feet deep there. The tankers that go to Richmond/Vallejo/Martinez are all of the smaller variety due to the shallowness of the facilities they go to. Likewise for the freighters that go up the Sacramento and San Joaquin Rivers. If you want a thrill, encounter a freighter while going pass Middle Ground or the old entrance to Port Chicago!
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