a TABLE OF CONTENTS - UNDP

Removal of Existing Structures and Other Obstructions
y
This work shall include, but not be limited to, the removal of existing structures and
other obstructions interfering with the Works. The salvaging of any of these
materials for the use for the Engineer shall be as directed by the Engineer and
unwanted materials shall be disposed off the Site in a satisfactory manner.
Cleaning and Grubbing
The Contractor shall perform the clearing and grubbing (if any), of top soil consisting
mainly of loose soil, vegetable and organic matters, drift sand, unsuitable soil and
rubbish by scarifying the areas to be excavated and sidewalks to a minimum depth of
300mm from the natural ground level. All materials resulting from the above
operations shall be removed from the site, loaded and transported and off loaded,
spread and leveled to approved dumps.
20.4.1.5 Setting-Out
The Contractor shall stake-out the work as shown on the Drawings and secure the
Engineer's approval of his stake-out before proceeding with construction. If, in the
opinion of the Engineer, modification of the line or grade is advisable before or after
stake-out, the Engineer will issue detailed instructions in writing to the Contractor for
such modification and the Contractor shall revise the stake-out for further approval in
accordance with the relevant Clause of the Conditions of Contract.
20.4.1.6 Excavation
The Contractor shall perform all excavation true to line, width and depths shown on
the Drawings or to such further lines, depths or dimensions or to reach suitable
bearing strata as may be directed by the Engineer.
Keeping Excavations Free from Water
All excavations shall be kept clear of water by pumping or bailing or by wellpoint
dewatering, but the latter system shall not be employed if any danger exists of
withdrawing water from the foundations of the adjoining buildings and such water
shall be discharged clear of the Works and the method adopted shall in no way
contravene with regulations of the Municipalities.
The system or systems to be employed shall be approved by the Engineer. Such
approval if given, shall not waive the Contractor's responsibilities and liabilities
under the Contract.
Particular attention shall be paid to the installation of sheeting and shoring as may be
necessary for the protection of the work and for the safety of personnel and public.
Storing of Suitable Excavated Material
301