Tunnel Waterproofing Works

Project Description

The key purpose of Wan Chai Development Phase II (WDII) is to provide land at Wan Chai North and North Point for the construction of the Central – Wan Chai Bypass and Island Eastern Corridor Link (hereafter referred to as “the CWB”). Land formed under the project will be developed as a waterfront promenade joining that at the new Central waterfront for public enjoyment. 

Major elements of the WDII project include:

  • Formation of land along the existing coastline at Wan Chai North and North Point for the construction of the CWB;
  • Re-provisioning of affected existing facilities including cross harbour water mains, submarine sewage outfall pipelines, ferry piers, cooling water pumping systems and a salt water pumping station;
  • Extending Road P2 at Central Reclamation Phase III to Wan Chai North and re-aligning the existing Hung Hing Road;
  • Modification of existing roads for connection with the slip roads of the CWB tunnel;
  • Construction of new pedestrian linkages to the new waterfront. 

The construction works for WDII commenced in December 2009. The road works necessary for enabling the commissioning of the Central – Wan Chai Bypass was completed in January 2019. The WDII works at Wan Chai would be implemented under six CEDD works contracts. Four works contracts were awarded since end 2009 and all of them were substantially completed as at end 2018. The implementation plan of the remaining two works contracts would be determined to dovetail with the planning and developments in the Wan Chai areas. 

The new permanent government helipad at Expo Drive East and the new Wan Chai Ferry Pier commenced operation in end May 2012 and end August 2014 respectively 

On April 2015, our company was awarded for the project of “Contract No. HK/2012/08 Wan Chai Development Phase II – Central Wan Chai Bypass at Wan Chai West” from China State – Build King Joint Venture. 

The works herein specified for construction of waterproofing works for CWB Tunnel Structure and MVB Substructure. The waterproofing works were over 40,000 m² and the works was started on June 2015 and completed on April 2018. We provided 15 years warranty for the waterproofing works in this project.