NW-C-4463-26
PAN PANShoal (10.4 m) reported between Trois-Rivières and Donnacona
No longer in forceReceived 22 Oct 2026, 00:00 UTCArchived 28 Oct 2026, 14:49 UTC
Warning text
Positions open on the mapNW-C-4463-26
Date
2026-10-22 18:43 UTC
Status
Published
Title
Newly Discovered Dangers
Areas
Trois-Rivières to Donnacona
Categories
Shallow Depth Confirmed
Description
Shoal located in area bounded by:
46 38.856N 071 45.148W
46 38.939N 071 45.383W
46 38.946N 071 45.378W
46 38.864N 071 45.143W
Depth: 10.4 metres
In Force Shoals number Q5270/26 refers.
Position
Centroid : 46° 38.901'N 071° 45.263'W
Pt 1: 46° 38.856'N 071° 45.148'W
Pt 2: 46° 38.939'N 071° 45.383'W
Pt 3: 46° 38.946'N 071° 45.378'W
Pt 4: 46° 38.864'N 071° 45.143'W
Charts
1314(NAD83),
1315(NAD83)
Location map
Open in the full mapAnalysis
No longer in forceA shoal has been confirmed in the St. Lawrence River between Trois-Rivières and Donnacona with least depth 10.4 metres. Centroid position given as 46°38.901'N 071°45.263'W; four bounding points are provided. Charts 1314(NAD83) and 1315(NAD83) show the area. Shoals reference Q5270/26 applies.
Navigate with caution and avoid the shoal area; consult charts 1314(NAD83) and 1315(NAD83) and 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
- Validity
- From 22 Oct 2026, 18:43 UTC
Date 2026-10-22 18:43 UTC. In Force Shoals number Q5270/26 refers. - Hazards
- shoal, shallow depth (10.4 m)
- Least depth
- 10.4 m (34 ft)
- References
- Shoals number Q5270/26
- Charts
- 1314(NAD83), 1315(NAD83)
Coast stations for this area
- RCCJRCC QuebecCanada25 NM from the area
- RCCRCC BostonUnited States260 NM from the area
- RCCJRCC TrentonCanada287 NM from the area
- DSCDSC Station Mont BelairJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM15 NM from the area
- DSCDSC Station QuebecJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM24 NM from the area
- DSCDSC Station LauzonJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM26 NM from the area
- DSCDSC Station Trois-RivieresJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM32 NM from the area
- DSCDSC Station MontmagnyJRCC QuebecCanadaMMSI 003160027VHF 40range 40 NM54 NM from the area
Worked out automatically from the warning text on 22 Oct 2026, 19:49 UTC. It can be wrong: the official warning text is the authority.
KeywordsDANGER