08 March 2009

Slope protection works on St. John's Island

The cure: worse than the disease? Efforts to deal with the landslides on our natural rocky cliffs of St. John's Island that began in Sep 08 will continue to Sep 09 .

This is a photo of the landslide at St. John's Island taken in May 07.
A landslide on a natural rocky shore
From the MPA notice, "slope protection works will entail the clearing of the debris via land, drilling and cement works and installation of rebar. These works will be carried out from the landward side."

What is a rebar?

From Wikipedia: "A rebar, or reinforcing bar, is a common steel bar, and is commonly used in reinforced concrete and reinforced masonry structures. It is usually formed from carbon steel, and is given ridges for better mechanical anchoring into the concrete."
What natural shores are found on St. John's Island?
Living shores of St. John's Island, Singapore
Here's a view of the Northern reefs of St. John's.

Kok Sheng on his wonderful creations blog has done several posts about the shores of this island
More blog posts about St. John's shores.

Slope protection works on St. John's Island
From Port Marine Notice No. 30 of 2009 dated 5 Mar 09.

This is a revision of the Port Marine Notice 159 of 2008. The working area has been amended and the working period has been extended.

With effect from 10 Mar 2009 to 9 Sep 2009. 0800 hrs to 1800 hrs daily, including Sundays and Public Holidays. On St John’s Island, within the working area (see attached plan):


Slope protection works will entail the clearing of the debris via land, drilling and cement works and installation of rebar. These works will be carried out from the landward side. A work barge will be deployed for the supply of materials/ equipment to the project site. A safety tug boat will be in attendance throughout the duration of the works. Safety boats will be deployed in the vicinity of the working area to warn other craft of the operations in the area. Further general enquiries relating to the project can be directed to Mr Teddy Naland, the senior manager, at Tel: 9750 0388, email: teddynaland@utraco.com.

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