The St. Lawrence Seaway Management Corporation is warning vessels on the Montreal to Lake Ontario section of the Seaway to avoid some shallows that have developed.
The warning is for vessels drawing more than 78 decimeters, or about 25-1/2 feet, in the vicinity of Cross Over Island Call-In Point (COI) just downstream of Chippewa Bay off of the western St. Lawrence County shore.
Seaway officials said Wednesday that, until further notice, upbound or downbound vessels drafting 78.0 dm or greater are advised to avoid vessel “meets” there due to shoaling. The specific area of concern is one-tenth of a nautical mile above the call-in point, mid-channel.
In addition, maximum speed for upbound and downbound vessels drafting 78.0 dm or greater is 8 knots in the area.
Speeds will be monitored closely, the Canadian Seaway authorities said.