Construction of Sewage Conveyance System

Contract No.. DC/2007/24
Construction of Sewage Conveyance System from Aberdeen to Sai Ying Pun

Scope of Works

(1) Construction of sewage conveyance system from Aberdeen Preliminary Treatment Works to Sai Ying Pun via Wa Fu Preliminary Treatment Works, Cyberport Preliminary Treatment Works and Sandy Bay Preliminary Treatment Works.
(2) Construction of drop shafts at Aberdeen Preliminary Treatment Works, Wa Fu Preliminary Treatment Works, Cyberport Preliminary Treatment Works, and Sandy Bay Preliminary Treatment Works.
(3) Construction of temporary production shafts at Aberdeen, Sandy Bay and Sai Ying Pun to provide access for the construction of the sewage conveyance system.
(4) Construction of connection channels, pipes, chambers and tunnel connecting the proposed drop shafts to the facilities of the preliminary treatment works.

Project Highlights

Total Length of Tunnel: 7.5 km
Size of completed Sewer: oval shape of 1.5 – 2.1m²
Depth below Sea Level: 70 - 120 m
Quantity of Material Excavated : 235,000立方米
Population Served on Commissioning : about 300,000

Contract Particulars

Contract Commencement : 7/31/2009
Completion Date :15/12/2014
Contract Sum : around HK$2,830 million
Government Department : Drainage Services Department
Consultant : AECOM Asia Company Limited
Contractor: Leighton – LNS Joint Venture

Progress Photos