NW-C-3734-26
PAN PANShoal with 10.9 m depth near Trois-Rivières to Donnacona (St. Lawrence River)
No longer in forceReceived 26 Aug 2026, 00:00 UTCArchived 27 Oct 2026, 17:13 UTC
Warning text
Positions open on the mapNW-C-3734-26
Date
2026-08-26 20:06 UTC
Status
Published
Title
Newly Discovered Dangers
Cancels
NW-C-3391-26
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 24.708N 072 22.862W
46 24.703N 072 22.870W
46 24.712N 072 22.881W
46 24.717N 072 22.873W
Depth: 10.9 metres
In Force Shoals number Q5180/26 refers.
Position
Centroid : 46° 24.710'N 072° 22.872'W
Pt 1: 46° 24.708'N 072° 22.862'W
Pt 2: 46° 24.703'N 072° 22.870'W
Pt 3: 46° 24.712'N 072° 22.881'W
Pt 4: 46° 24.717'N 072° 22.873'W
Charts
1313(NAD83)
Location map
Open in the full mapAnalysis
No longer in forceA newly discovered shoal with least depth 10.9 metres has been reported in the St. Lawrence between Trois-Rivières and Donnacona. A centroid and four bounding positions are provided. The message cancels NW-C-3391-26 and refers to shoal number Q5180/26. Chart 1313 (NAD83) is affected.
Navigate with caution, consult chart 1313 (NAD83) and avoid the shoal area; update passage plans accordingly.
- Type
- Wreck / obstruction · severity moderate
- Feed
- Wrecks, obstructions and drifting objectsAll warnings of this kind on the map, or as an API feed.
- Location
- Trois-Rivières to Donnacona (St. Lawrence River)
- Validity
- From 26 Aug 2026, 20:06 UTC
In Force Shoals number Q5180/26 refers. - Hazards
- shoal, shallow depth
- Least depth
- 10.9 m (36 ft)
- Cancels
- NW-C-3391-26
- Charts
- 1313(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada54 NM from the area
- RCCRCC BostonUnited States251 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 NM38 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
Worked out automatically from the warning text on 28 Sept 2026, 01:27 UTC. It can be wrong: the official warning text is the authority.
KeywordsDANGER