What's News - 2015
6th General Meeting of the IWA HK cum Site Visit
Date : 12 May 2015 (Tuesday)
Time : 6 p.m. (preceded by a site visit at 4 p.m.)
Venue : HVRC Conference Room 1 at Hong Kong Jockey Club, Happy Valley
Site Visit : Happy Valley Underground Stormwater Storage Scheme (HVUSSS)
Time : 4 p.m.
Highlights of HVUSSS
The Drainage Services Department (DSD)'s Happy Valley Underground Stormwater Storage Scheme (HVUSSS) has won the 2012 International Water Association (IWA) Project Innovation Awards (East Asia Regional Awards) in the Planning Category. The IWA established the Project Innovation Awards Programme in recognition of excellent and innovative water engineering projects around the world.
The HVUSSS is Hong Kong's first application of the movable crest weir system with supervisory control and data acquisition. One of its advantages is more effective collection of excess stormwater, which results in a smaller storage tank. The shallow tank design also enables the water pump to consume less energy, as well as reducing construction time and costs. Besides, this project is Hong Kong's first example of applying state-of-the-art hydraulic modelling techniques including 1-D and 2-D hydraulic models for drainage network and overland flow. It also makes use of a 3-D computational fluid dynamics model to analyse the hydraulic performance of particular parts of the system in an effort to increase the precision of the flood prevention design.