The Contract NS2 forms the central contract of the North-South Transmission Cable Tunnel running from Mandai Shaft to Ang Mo Kio Shaft. The works in this Contract comprise the construction of a 5.35km tunnel with an internal diameter of 6m. Three circular shafts will be provided as part of the works, Mandai Shaft, Tagore Shaft and Ang Mo Kio Shaft.
Final coating: MAPECOAT W SP, world product leader of the Sector, was chosen for the project.
Backfill grouting: MAPEBENT API