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#167676 - 02/23/09 08:21 PM Re: Indefinite survival on the water [Re: dweste]
wildman800 Offline
Carpal Tunnel

Registered: 11/09/06
Posts: 2816
Loc: La-USA
Item to note: If your deep draft is 4'6", then your Navigation Draft should be about 6'. IOW, don't try to sail/motor into waters that are listed as less than 6 feet deep at mean mean low water.
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#167686 - 02/23/09 10:24 PM Re: Indefinite survival on the water [Re: wildman800]
dweste Offline
Pooh-Bah

Registered: 02/16/08
Posts: 2463
Loc: Central California
Originally Posted By: wildman800
Item to note: If your deep draft is 4'6", then your Navigation Draft should be about 6'. IOW, don't try to sail/motor into waters that are listed as less than 6 feet deep at mean mean low water.


Well, that's the fun part. The charts are relatively vague about the transition zones between carefully navigable - say more than 10 feet of depth at low tide - and no-go areas that are dry at low tide.

All the sloughs have radical depth changes in very small distances, and submerged obstacles [typically large tree branches and old pilings] that defeat charting. Caution and careful exploration are the keys.

As a practical matter, most of my voyages will be in areas I know well or in places outside the Delta where the chart depths are significantly beyond any point of concern.


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