NAVWARN details

ID NW-N-0160-25
Date 2025-03-11 16:05 UTC
Status Published
Title Marine works
Cancels NW-N-1166-24
Areas South Coast
Vicinity Argentia
Categories Dredging Operations
Description

Debris removal, boulder removal, and dredging operations are underway in the areas bounded by the following coordinates:

Exit Channel:

47 18.680N 053 58.223W
47 18.540N 053 57.907W
47 18.307N 053 58.122W
47 18.482N 053 58.503W

Inner Channel:

47 19.571N 053 57.575W
47 19.584N 053 57.063W
47 18.944N 053 57.027W
47 18.931N 053 57.539W

Outer Channel:

47 20.850N 053 58.760W
47 20.468N 053 57.347W
47 20.154N 053 57.588W
47 20.542N 053 59.030W

Environmental monitoring buoys equipped with lights and radar reflectors deployed in:

47 19.969N 053 59.099W

47 19.725N 053 57.066W

47 19.686N 053 56.798W

Removed boulders are to be relocated to the areas bounded by the following coordinates:

Inner Channel Boulder Relocation Area:

47 19.089N 053 57.115W
47 19.092N 053 57.036W
47 19.653N 053 57.067W
47 19.651N 053 57.147W

Outer Channel Boulder Relocation Area:

47 20.543N 053 57.405W
47 20.594N 053 57.376W
47 20.945N 053 58.703W
47 20.894N 053 58.732W

Vessels will move to transit dredged material to offshore disposal areas in the vicinity of:

Placentia Sound Offshore Disposal Site:

47 18.393N 053 55.372W

The Pond Offshore Disposal Site:

47 18.990N 053 59.576W

Multiple vessels, barges and dredges will be involved in the operations, all will be monitoring VHF channel 16 and are requesting a wide berth of at least 100 meters.

Caution.

Position
Centroid : 47° 18.498'N 053° 58.192'W
    Pt 1: 47° 18.680'N 053° 58.223'W
    Pt 2: 47° 18.540'N 053° 57.907'W
    Pt 3: 47° 18.307'N 053° 58.122'W
    Pt 4: 47° 18.482'N 053° 58.503'W
Centroid : 47° 19.257'N 053° 57.301'W
    Pt 1: 47° 19.571'N 053° 57.575'W
    Pt 2: 47° 19.584'N 053° 57.063'W
    Pt 3: 47° 18.944'N 053° 57.027'W
    Pt 4: 47° 18.931'N 053° 57.539'W
Centroid : 47° 20.503'N 053° 58.182'W
    Pt 1: 47° 20.850'N 053° 58.760'W
    Pt 2: 47° 20.468'N 053° 57.347'W
    Pt 3: 47° 20.154'N 053° 57.588'W
    Pt 4: 47° 20.542'N 053° 59.030'W
47° 19.969'N 053° 59.099'W
47° 20.917'N 053° 57.840'W
47° 19.686'N 053° 56.798'W
Centroid : 47° 19.371'N 053° 57.091'W
    Pt 1: 47° 19.089'N 053° 57.115'W
    Pt 2: 47° 19.092'N 053° 57.036'W
    Pt 3: 47° 19.653'N 053° 57.067'W
    Pt 4: 47° 19.651'N 053° 57.147'W
Centroid : 47° 20.744'N 053° 58.054'W
    Pt 1: 47° 20.543'N 053° 57.405'W
    Pt 2: 47° 20.594'N 053° 57.376'W
    Pt 3: 47° 20.945'N 053° 58.703'W
    Pt 4: 47° 20.894'N 053° 58.732'W
47° 18.393'N 053° 55.372'W
47° 18.990'N 053° 59.576'W
Charts 4841(NAD83)

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