News from IGEM FEDS
Technical Visit to Happy Valley Underground Stormwater Storage Scheme
Highlights:
Jointly organized by Institution of Gas Engineers and Managers Far East District Section (IGEM-FEDS) and the Hong Kong Institution of Engineers Gas & Energy Division (HKIE-G&E), the captioned technical visit was held successfully on 16 December 2017 at Happy Valley, Hong Kong. A total of 27 participants took part in the visit.
This scheme aims at alleviating the flooding problems in low-lying area of Happy Valley and Wan Chai areas. The scope of the 5-year project (fully completed in 2017), carried out by the Drainage Services Department (DSD), comprises the construction of an underground stormwater storage tank with a capacity of 60,000 cubic meters, a pump house and the associated drains. The underground storage tank temporarily stores part of the stormwater collected from the upstream catchment for attenuating the peak flow through the downstream stormwater drainage systems during heavy rainstorms. The stormwater would then be discharged through pumps and gravity drains to the outfall.
An in-depth presentation by the Project Team on the innovative and intelligent design of the system was conducted during the visit, followed by a site tour at the storage facility. The participants have appreciated the sustainable design of the project, which has already won several awards in the engineering industry and worldwide competitions. The incredible shallow tank design and the adoption of movable overflow side weir system greatly reduce the design capacity of storage tank and the electricity demand for pumping stored water. What’s more, the exposed area has fully immersed into the landscape of Happy Valley, achieving a fashionable and green design. More importantly, our participants can definitely be impressed by this inspiring project, not only from the engineering point of view, but also from social point of view.
On behalf of IGEM-FEDS and HKIE-G&E, we would like to express our sincere gratitude to DSD for their dedication in this visit.
