NAVWARN details
| ID | NW-Q-1353-22 |
| Date | 2022-09-12 15:38 UTC To 2024-07-19 00:34 UTC |
| Status | Cancelled |
| Title | Waterway information - Calculation of under-keel clearance |
| Referenced by | NW-Q-0465-23 |
| Cancelled by | NW-C-1838-24 |
| Areas |
Montréal to Trois-Rivières |
| Vicinity | Montréal-Est to Verchères |
| Categories |
Waterway Information (Other) |
| Description | 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 SorelMontreal 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 M157 (opposite to the Port of Montreal, section 109) as well as the No. 1 Anchorage Pointe-aux-Tremble, 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 Varennes hydrographic station, obtained after adjustment, will be used for the calculation of under-keel clearance. Monthly Notice to Mariners Eastern Edition 08/22 refers. |
| Position |
45° 37.806'N 073° 29.340'W
45° 47.072'N 073° 21.129'W |
| Charts | 1310(NAD83), 1310(NAD83), 1311(NAD83) |
Related links
- Date Modified: