12125-1909-Notices-to-Mariners — Page 1

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THE HONGKONG GOVERNMENT GAZETTE, JUNE 25, 1909.

No. 387.

NOTICES TO MARINERS.

HARBOUR NOTIFICATION.

No. 1 of 1909.

GOUGH ISLAND- -“ASTRAEA” CHANNEL.

Establishment of Leading Marks for, and means for signalling depth of water in.

399

NOTICE is hereby given that on and after the 1st July proximo the Gough Island- "Astraea" Channel will be open during daylight to such vessels as may wish to make use of it, and to assist navigation therein two poles, painted black and carrying triangular shapes, have been erected at the upper end of Gough Island, the one near the channel with the apex of the triangle upwards, and that of the other downwards. These, when kept in line, will indicate the centre of the new channel, which at present is in no part less than 600 feet in width. Three six-feet buoys, painted red, will be placed on the starboard side of the channel for vessels inward bound, and numbered 1, 2 and 3 respectively, commencing from the lower end.

Vessels inward bound should, after having passed the Woosung Inner Bar Signal Station, keep 1 cables from the embankment on the left bank of the river and pass first buoy, moored off Limit Beacon, on the starboard hand and at a distance of 300 feet; con- tinuing up river, pass second buoy on the same hand and at the same distance. When abreast second buoy, follow up the line of leading marks until abreast third buoy, where divert from the line and keep a ship's length from the Conservancy Works on Gough Island until having passed the upper end of such Works, which is marked by a Dolphin Pile sur- mounted by a spherical shape, painted black.

The difference between the depth of water in the new channel and that on the Woosung Inner Ear, as indicated by the signals at the Inner Bar Signal Station, will be shown at the Woosung Lighthouse and from the higher of the two Leading Marks on Gough Island, as under:

Difference, in feet.

1

Symbols.

5

6

When the depth of water in the new channel is more than on the Woosung Inner Bar, symbols as above will be shown on the southern yard-arm, and when less, on the northern yard-arm; if the depth be the same as on the Woosung Inner Bar, no symbols will be shown.

In order to avoid accidents, vessels intending to pass through the new channel must hoist a black ball at the fore truck when abreast the Woosung Lighthouse on vessels inward bound, and when abreast Black Point, or as soon as the signals at the Woosung Inner Bar Signal Station can be seen, on board vessels outward bound.

When dredgers are at work in the new channel, steam vessels should, when approaching them. sound their whistles and slow down, to give the dredgers time to slacken their moorings.

Plans of the new channel, Leading Marks, etc., may be seen at the Harbour Master's Office.

CAUTION.Captains and/or Pilots are reminded that they must go dead slow when passing the barges engaged in dropping "zinkstuks" in the Ship Channel, and when passing any other Conservancy Works in course of construction.

Approved:

E. GORDON LOWDER,

Commissioner of Customs, Officiating.

CUSTOM HOUSE, SHANGHAI, 14th June, 1909.

WM. CARLSON,

Harbour Master.