John — any chance you could make some passes ahead of time in a dinghy with a hand-held depth sounder like one of these:
http://www.defender.com/product3.jsp?path=-1|344|2028688|2028746&id=2571459 Or better yet, a portable fishfinder. This would help you get an idea of what’s really there. Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^( On Mar 15, 2015, at 11:19 AM, John Pennie via CnC-List <cnc-list@cnc-list.com> wrote: > So in a few weeks I’ll be bringing a fairly deep draft boat (6-1/2’) into an > area not really designed for fairly deep boats (canal in my condo complex). > The approach is the issue, not the canal. Local knowledge is none as it is > primarily shallow powerboats in the canal. Water depth on the approach looks > fine on the chart at 10-14’ but this is New York harbor so who really knows > what it is today (g). Two obstructions are listed - submerged pilings and a > distributed wreck. What is the norm for charting depths around these > obstructions? How would one know what the water depth is over the wreck? > You’d think I’d know this by now but in the past I always had the luxury of > just steering around them! > > > John
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