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Professional flood prevention work by DSD (with photos)
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     The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung, today (January 15) toured the Happy Valley Underground Stormwater Storage Scheme and spoke highly of work of the Drainage Services Department (DSD) in strengthening flood prevention for Happy Valley and Wan Chai areas.

     Accompanied by the Director of Drainage Services, Mr Edwin Tong, Mr Cheung inspected various facilities, including the underground stormwater storage tank, the control room, as well as the pump house and the green slope enveloping it. He was also briefed by Mr Tong on the project background.

     Mr Cheung was pleased to learn that the stormwater storage tank played a vital role in preventing Happy Valley Recreation Ground and the Racecourse from flooding during the black rainstorm in October 2016 after its commissioning in March 2015 and the attack by Typhoon Hato in August 2017 when Tropical Cyclone Warning Signal No. 10 was hoisted.

     He was also glad to know that the Scheme enhanced flood prevention capacity and at the same time created green recreation area for the public.

     The Scheme was brought into full commission in March last year, about a year ahead of schedule. Coupled with other cost-saving measures, its construction cost was reduced by $90 million or about 8 per cent of the final target cost.

     He praised the professionalism of DSD officers by developing world-class wastewater and stormwater drainage infrastructure economically and environmentally and thereby contributing significantly the sustainable development of Hong Kong.

     The storm water tank is equipped with a smart water gate which was introduced to Hong Kong for the first time to monitor real time the water level within the drainage system and the tide level at the outfall of the downstream system in the district. Stormwater will be stored temporarily in the stormwater storage tank that has a capacity of 60 000 cubic metres or about the total volume of 24 standard swimming pools to relieve the discharge load of the downstream drainage system and thereby reducing flooding risks.

     The annual maximum amount of groundwater and rainwater that can be treated by the water harvesting system is about 220 000 cubic metres, which is equivalent to the total volume of about 88 standard swimming pools. The groundwater and rainwater harvested is mainly used for irrigation, cleaning and flushing purposes.

     The approved project estimate is $1.07 billion. The project commenced in September 2012 and was brought into full commission in March last year.
 
Ends/Monday, January 15, 2018
Issued at HKT 21:50
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The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung, visited the Happy Valley Underground Stormwater Storage Scheme today (January 15). The Scheme, developed by the Drainage Services Department, was fully commissioned in March 2017, about a year ahead of the original schedule. Photo shows the Scheme's site. Inner photo is the stormwater storage tank, which has 60,000m³ and is supported by 433 columns.
The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung visited the Happy Valley Underground Stormwater Storage Scheme (HVUSSS) today (January 15). Photo shows Mr Cheung (second right), being briefed by the Director of Drainage Services, Mr Edwin Tong (first right), on the background of the HVUSSS while viewing the scheme model. Also present is the Deputy Director of Drainage Services, Mr Mak Ka-wai (third right).
The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung (first left), visited Happy Valley Underground Stormwater Storage Scheme stormwater storage tank today (January 15). Photo shows he is briefed by the representative from the Drainage Services Department about the water levels recorded on the water gauge in a black rainstorm in October, 2016 and during the attack by Typhoon Hato in August 2017 when Tropical Cyclone Warning Signal No. 10 was hoisted.
The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung (centre), is pictured with the Director of Drainage Services, Mr Edwin Tong (left), and the Deputy Director of Drainage Services, Mr Mak Ka-wai (right), during his visit to the stormwater storage tank of the Happy Valley Underground Stormwater Storage Scheme today (January 15).
The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung, visited the Happy Valley Underground Stormwater Storage Scheme today (January 15). Mr Cheung (second row, fourth right), is pictured with the Director of Drainage Services, Mr Edwin Tong (second row, third right); the Deputy Director of Drainage Services, Mr Mak Ka-wai (second row, fifth right); and representatives from the Development Bureau and the Drainage Services Department.
The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung (second left), is briefed by a representative of the Drainage Services Department on the flood prevention and the recreational facilities provided by the Happy Valley Underground Stormwater Storage Scheme during his visit to the green slope covering the Scheme's pump house today (January 15). Joining him are the Director of Drainage Services, Mr Edwin Tong (first left), and the Deputy Director of Drainage Services, Mr Mak Ka-wai (third left).
The Chief Secretary for Administration, Mr Matthew Cheung Kin-chung (right), visits the green slope covering the pump house of the Happy Valley Underground Stormwater Storage Scheme today (January 15). Joining him are the Director of Drainage Services, Mr Edwin Tong (centre), and the Deputy Director of Drainage Services, Mr Mak Ka-wai (left).