NEW YORK STATE CANAL SYSTEM

September 21, 2007

Champlain Canal
Chart # 14786

Mariners are advised that shoaling to 6.5’ has been reported between red buoys 72 and 72A, just to the south of Lock C-4 on the Champlain Canal. This shoaling has been reported and confirmed at a time when flashboards adjacent to Lock C-3 were fully deflated for maintenance, decreasing water levels to “normal pool” but much lower than typical for this area. At normal pool elevation of 67.5’, vessels exceeding a 6.5’ draft should not transit this area.

Typical navigation season elevation for this level is 73.5’ due to inflatable flashboards maintained for the purpose of hydropower generation by a private company. Therefore, depth usually encountered in this area will be approximately 6’ deeper than reported above. With flashboards fully inflated on this level, controlling minimum depth is approximately 12.5’.

Mariners requiring a controlling depth of greater than 6.5’ should call ahead to verify pool levels prior to transiting this area.

For updates and information on Canal conditions please call 1-800-4CANAL4 or visit www.nyscanals.gov.

Carmella R. Mantello Director, New York State Canal Corporation