Tseung Kwan O Bus interchange

A new bus interchange next to Tseung Kwan O tunnel (Sau Mau Ping side) is being constructed by CCED under contract NE/2016/05

Kwan On Construction Co. install 70 meters of DN225 (250 OD) CCTV pipe and eight sets of DSD Type A manhole connectors under the Bus Interchange. 

Unlike Concrete and Earthenware, PE pipes cannot be installed directly into concrete manhole chambers without using a DSD Type A or B manhole connector for two main reasons.