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New York State Canal Corporation

Notice to Mariners

Champlain Canal – Smith’s Basin to Comstock

August 14, 2023

Mariners are advised that water levels in the Canal from Champlain Canal Lock C-9 in Smith’s Basin to Lock C-11 in Comstock will be approximately 1 foot lower than normal beginning the morning of Wednesday, August 15th , due to flashboard installation. This lower water level may affect boats and docks on this area of the Champlain Canal and will continue until the end of the day on Thursday, August 16th.

A chart covering the affected area can be found at


Features along the eastern portion of the Erie Canal are listed by mileage at

The Canal Corporation urges all users and stakeholders to register to receive updates through the Notice to Mariners notification program by clicking here.

For general news, please visit or follow the Canal Corporation on FacebookInstagramTwitter, or LinkedIn.

In case of emergencies, please call the Canal Corporation’s Emergency Call Center at 833-538-1042.