NW-C-4546-26
Received: 28 Oct 2026, 00:00Updated: 1 Nov 2026, 12:53
analysis
ActiveShallower depths confirmed near Port de Bécancour (Trois-Rivières to Donnacona)
Shallower depths have been confirmed at several positions in the vicinity of Port de Bécancour between Trois-Rivières and Donnacona. Depths reported range around 10.1 to 10.5 metres at the listed positions. Canadian Hydrographic Service chart 1313 (NAD83) is referenced. The message cancels NW-C-3399-24 and NW-C-3398-24.
Navigate with caution, consult Canadian Hydrographic Service chart 1313 and adjust passage planning to account for reduced depths.
- Type
- Navigational hazard · severity moderate
- Feed
- Wrecks, obstructions and drifting objectsAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/hazards/
- Location
- Trois-Rivières to Donnacona, Vicinity Port de Bécancour
- Validity
- From 28 Oct 2026, 16:24 UTC
Date 2026-10-28 16:24 UTC - Hazards
- shallow depths
- Least depth
- 10.1 m (33 ft)
- Cancels
- NW-C-3399-24, NW-C-3398-24
- Charts
- 1313(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada54 NM from the area
- RCCRCC BostonUnited States250 NM from the area
- RCCJRCC TrentonCanada258 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM3 NM from the area
- DSCDSC Station SorelJRCC QuebecCanadaMMSI 003160028VHF 40range 40 NM37 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM44 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM54 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM56 NM from the area
Generated automatically from the warning text on 28 Oct 2026, 17:27 UTC. It can be wrong: the original warning below is the authoritative text.
Message content
NW-C-4546-26
Date
2026-10-28 16:24 UTC
Status
Published
Title
Shallow Depth Confirmed
Cancels
NW-C-3399-24
Cancels
NW-C-3398-24
Areas
Trois-Rivières to Donnacona
Vicinity
Port de Bécancour
Categories
Shallow Depth Confirmed
Description
Shallower depths confirmed at:
46 24.299N 072 22.711W, 10.2 metres
46 24.282N 072 22.736W, 10.5 metres
46 24.164N 072 22.785W, 10.5 metres
46 24.259N 072 22.774W, 10.3 metres
46 24.182N 072 22.783W, 10.1 metres
46 24.253N 072 22.702W, 10.5 metres
Canadian Hydrographic Service Navigational Chart 1313 refers.
Position
Charts
1313(NAD83)