NW-C-4473-26

Shoals reduce maintained depth to 10.1 m near Cap Santé between buoys Q54 and Q53

No longer in forceReceived 23 Oct 2026, 00:00 UTCArchived 28 Oct 2026, 16:07 UTC

Warning text

NW-C-4473-26 Date 2026-10-23 20:39 UTC Status Published Title Shallow Depth Reported Areas Trois-Rivières to Donnacona Vicinity Cap Santé Categories Shallow Depth Reported Description Channel obstruction due to the presence of shoals reducing the advertised maintained depth to 10.1 metres at certain positions from a line between buoys Q54 and Q53 up to a distance of three (3) cable lengths upstream of this line. Position Centroid : Pt 1: Pt 2: Pt 3: Pt 4: Charts 1314(NAD83)

Analysis

No longer in force

Shoals have been reported in the channel between buoys Q54 and Q53, upstream towards Trois-Rivières and Donnacona near Cap Santé. The advertised maintained depth is reduced to 10.1 metres at certain positions from a line between buoys Q54 and Q53 up to three cable lengths upstream. The report was published 2026-10-23 20:39 UTC; no end time is given.

Navigate with caution and allow for reduced depth; consult local authorities and chart updates.

Type: Navigational hazard · 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, vicinity Cap Santé
Validity: From 23 Oct 2026, 20:39 UTC
Date 2026-10-23 20:39 UTC (no end time specified)
Hazards: shoals reducing maintained depth, channel obstruction
Least depth: 10.1 m (33 ft)
Charts: 1314(NAD83)

Aids to navigation affected

OtherQ54
OtherQ53

No aids-to-navigation list in the database yet; aids are shown as the warning names them.

Worked out automatically from the warning text on 23 Oct 2026, 21:47 UTC. It can be wrong: the official warning text is the authority.

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