NAVWARN details
| ID | NW-Q-1491-22 |
| Date | 2022-10-05 22:31 UTC To 2024-07-19 00:40 UTC |
| Status | Cancelled |
| Title | Waterway information - Calculation of under-keel clearance |
| Referenced by | NW-Q-0465-23 |
| Cancelled by | NW-C-1839-24 |
| Areas |
Montréal to Trois-Rivières |
| 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 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 Contrecur hydrographic station, obtained after adjustment, will be used for the calculation of under-keel clearance. |
| Position |
45° 47.287'N 073° 20.935'W
45° 56.548'N 073° 12.668'W |
| Charts | 1311(NAD83) |
Related links
- Date Modified: