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Shallower depths located in an area bound by:

47 42.900N 064 39.763W
47 42.904N 064 39.746W
47 42.895N 064 39.731W
47 42.848N 064 39.753W

Limiting depth of 1.2 metres. Caution.

Shallower depths located at:

Latitude          Longitude          Depth (in Metres)
47 42.676N     064 39.683W     4.2
47 42.755N     064 39.742W     2.9                                                                                                                    47 42.952N     064 39.780W     1.5

As a result of an ongoing hydrographic survey, shallower than charted depths have been located in the following positions:

7.0 meters in 45 00.160N 061 53.722W,

7.8 meters in 45 00.161N 061 52.900W,

8.4 meters in 45 00.544N 061 53.543W.

Horizontal Datum: WGS84

Submerged damaged piling in Sapperton Channel, in the vicinity of 49 13.471N 122 52.583W.

Caution. 

Buoys between Wedgeport and the Tusket Islands have been reported as unreliable. 

Caution. 

An unidentified spar buoy has been reported in position 45 19.472N 066 09.189W. 

Caution. 

Operating properly and permanently relocated to mile 1014.3 at 68 39.692N 134 21.471W

Permanently relocated to mile 1022.4 at 68 45.630N 134 30.894W

Permanently relocated to mile 1011.6 at 68 40.631N 134 15.339W 

Unlit

Unreliable

Unreliable

A sunken barge and debris reported in Bushell Bay, Lake Athabasca, in the vicinity of 59 31.052N 108 44.503W.

Caution.

Permanently relocated to 68 45.282N 134 29.429W

Permanently relocated to 68 45.322N 134 29.547W, operating properly.

Scientific equipment at 48 53.106N 068 06.678W at a depth of 300 metres. 

Unlit

Sub-Surface mooring has been deployed at depth of 158 metres at  49 00.684N 126 30.230W

Scientific mooring deployed in the vicinity of 56 19.265N 059 50.318W with top floatation 200 meters off the bottom.

Caution.

Canadian Coast Guard Marine Communications and Traffic Services have been using all Canadian Hydrographic Service water-level stations for the calculation of passage authorizations in the Sorel–Montreal sector of the navigational waterway, namely Sorel, Contrecoeur, Varennes, Montreal-Frontenac and Montreal-Jetty No. 1.

In light of the particular features of the navigational waterway in the portion between buoys M84 (downstream of the municipality of Verchères) and M11 (downstream of the Bellmouth curve), it was agreed to adjust upward the available water column by 10 cm in this portion.

The minimum water column in this portion of the navigational waterway as per the Contrecœur hydrographic station, obtained after adjustment, will be used for the calculation of under-keel clearance.

Shallower depths located in an area bound by:

47 42.900N 064 39.763W
47 42.904N 064 39.746W
47 42.895N 064 39.731W
47 42.848N 064 39.753W

Limiting depth of 1.2 metres. Caution.

Shallower depths located at:

Latitude          Longitude          Depth (in Metres)
47 42.676N     064 39.683W     4.2
47 42.755N     064 39.742W     2.9                                                                                                                    47 42.952N     064 39.780W     1.5

As a result of an ongoing hydrographic survey, shallower than charted depths have been located in the following positions:

7.0 meters in 45 00.160N 061 53.722W,

7.8 meters in 45 00.161N 061 52.900W,

8.4 meters in 45 00.544N 061 53.543W.

Horizontal Datum: WGS84

Submerged damaged piling in Sapperton Channel, in the vicinity of 49 13.471N 122 52.583W.

Caution. 

Buoys between Wedgeport and the Tusket Islands have been reported as unreliable. 

Caution. 

An unidentified spar buoy has been reported in position 45 19.472N 066 09.189W. 

Caution. 

Operating properly and permanently relocated to mile 1014.3 at 68 39.692N 134 21.471W

Permanently relocated to mile 1022.4 at 68 45.630N 134 30.894W

Permanently relocated to mile 1011.6 at 68 40.631N 134 15.339W 

Unlit

Unreliable

Unreliable

A sunken barge and debris reported in Bushell Bay, Lake Athabasca, in the vicinity of 59 31.052N 108 44.503W.

Caution.

Permanently relocated to 68 45.282N 134 29.429W

Permanently relocated to 68 45.322N 134 29.547W, operating properly.

Scientific equipment at 48 53.106N 068 06.678W at a depth of 300 metres. 

Unlit

Sub-Surface mooring has been deployed at depth of 158 metres at  49 00.684N 126 30.230W

Scientific mooring deployed in the vicinity of 56 19.265N 059 50.318W with top floatation 200 meters off the bottom.

Caution.

Canadian Coast Guard Marine Communications and Traffic Services have been using all Canadian Hydrographic Service water-level stations for the calculation of passage authorizations in the Sorel–Montreal sector of the navigational waterway, namely Sorel, Contrecoeur, Varennes, Montreal-Frontenac and Montreal-Jetty No. 1.

In light of the particular features of the navigational waterway in the portion between buoys M84 (downstream of the municipality of Verchères) and M11 (downstream of the Bellmouth curve), it was agreed to adjust upward the available water column by 10 cm in this portion.

The minimum water column in this portion of the navigational waterway as per the Contrecœur hydrographic station, obtained after adjustment, will be used for the calculation of under-keel clearance.