NW-C-2303-26
PAN PANReceived: 11 Jun 2026, 00:00Updated: 2 Nov 2026, 01:50
analysis
ActiveConfirmed shoal depth of 10.4 m between Trois-Rivières and Donnacona
A shoal with a confirmed depth of 10.4 metres has been located between Trois-Rivières and Donnacona. Mariners are advised to exercise caution in the area.
Navigate with caution.
- 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
- St. Lawrence River, Trois-Rivières to Donnacona
- Validity
- From 11 Jun 2026, 19:21 UTC
2026-06-11 19:21 UTC - Hazards
- shoal, shallow depth
- Least depth
- 10.4 m (34 ft)
- Cancels
- NW-C-0285-26
- References
- Q5124/26
- Charts
- 1314
Coast stations for this area
- RCCJRCC QuebecCanada31 NM from the area
- RCCRCC BostonUnited States261 NM from the area
- RCCJRCC TrentonCanada282 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM20 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM27 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM30 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM32 NM from the area
- DSCDSC Station MontmagnyJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM60 NM from the area
Generated automatically from the warning text on 28 Sept 2026, 06:57 UTC. It can be wrong: the original warning below is the authoritative text.
Keywords
- Geometry refsbounded, polygon
- Dangerous AreaDANGER
- Geometry phrasesarea bounded, bounded by
Message content
NW-C-2303-26
Date
2026-06-11 19:21 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-0285-26
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 38.929N 071 54.533W
46 38.928N 071 54.534W
46 38.929N 071 54.536W
46 38.930N 071 54.535W
Depth: 10.4 metres
In Force Shoals number Q5124/26 refers.
Position
Centroid : 46° 38.929'N 071° 54.535'W
Pt 1: 46° 38.929'N 071° 54.533'W
Pt 2: 46° 38.928'N 071° 54.534'W
Pt 3: 46° 38.929'N 071° 54.536'W
Pt 4: 46° 38.930'N 071° 54.535'W
Charts
1314(NAD83)