Complete NTM 57/22

Latitude: 55º 57.735’N                                                         Longitude: 004º 48.887’W

WGS 84 Datum                                                                      WGS 84 Datum


Mariners are advised that from 20 December 2022, ground investigation works (boreholes) at Gourock Ferry Terminal, Gourock Bay, Firth of Clyde will be temporarily suspended for the duration of the Xmas period.

The barge OCM80 (pictured below) will remain in a jacked-up position about the above-indicated location for the duration of this period. It will be unmanned with an appropriate daymark and navigation lights displayed.

Weather permitting, work will recommence at the beginning of January 2023.

All vessels navigating in the vicinity of Gourock Ferry Terminal, Gourock Bay, during this time are requested to maintain a lookout for the jack-up barge and pass at a safe distance.

Unless otherwise promulgated, information regarding the current status of NTMs can be found at therefore if the NTM is still marked as ‘Active’ it is still in force.

This NTM replaces 54/22 which is now cancelled.

Further details can be obtained using the contact details below.


Issued on behalf of the Harbour Master

Caledonian Maritime Assets Limited


Categories: Uncategorized @gd