Projek Meningkatkan Kapasiti Empangan Sungai Tinggi Dam, Mukim Sungai Tinggi

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Project Information

Hulu Selangor, Selangor

Client / Owner

Perbadanan Urus Air Selangor Berhad (PUAS)


SMHB Sdn. Bhd.

Main Contractor

Asia Baru Construction Sdn. Bhd.

Date of Commencement

2nd September 2002

Date of Completion

1st March 2003

Asia Baru Construction Sdn. Bhd. submitted a proposal entitled “Feasibility Study For Potential Raw Water Resources in Sungai Selangor River Basin & The Proposal For Raising Sungai Tinggi Dam” to Perbandanan Urus Air Selangor Berhad (PUAS) in April 2002 and recommended to PUAS to adopt the option of raising the Sg. Tinggi Dam.

In June / July 2002, PUAS commissioned the designer of the dam, SMHB Sdn. Bhd. to investigate the feasibility for the raising of Sg. Tinggi Dam and concluded that it was technically feasible and safe to raise the dam embankment and reservoir water to create a larger storage.

The Letter of Acceptance for the project was issued by PUAS to the Turnkey Contractor (Asia Baru Construction Sdn. Bhd.) in August 2002 and the Contract Document was duly signed and stamped in October 2002. Construction works started in earnest in September 2002.

Briefly, the scope of work for this project comprised the following major components:

  1. Reservoir rim site clearing of about 100 hectares or rim length of some 107km.
  2. Raising existing dam crest by construction of RC retaining wall and earth filling including slope protection to both upstream and downstream.
  3. Construction of a saddle dam.
  4. Dismantling existing RC bridge and replacement with galvanised steel footbridge to spillway
  5. Raising of existing spillway and footbridge supports.
  6. Removal and replacement of existing street lighting and extension of affected geotechnical instruments and flow measuring device at measuring flume.
  7. Drainage and roadworks.
  8. Desilting of channel / river for a distance of about 1000m from existing measuring flume.
  9. Make good minor existing faulty equipment.
  10. Conduct Dam Safety Inspection before commencement of Sg. Tinggi Dam works and after completion of works.
  11. A compressor house to accommodate two (2) units of compressor for destratification system and its associated electrical and mechanical equipment.
  12. Construction of PUAS’s Human Resources Training Centre comprising renovation and refurbishment of existing staff quarters. Additional facilities include the construction of new surau, canteen and parade / court area to accommodate 100 persons including all other necessary amenities.