Why are Plover Cove Reservoir and High Island Reservoir so renowned?

The Government continued to seek for adequate water supply, but owing to the lack of land available for building further sizable reservoirs, in 1959 the Government began searching for a site to form a reservoir as a lake reclaimed from the sea. The authorities started the Plover Cove Scheme in 1961, choosing Plover Cove in Tolo Harbour. A 2km long dam was built across the strait, creating a man-made lake. The sea water was pumped out before the lake could be used to store fresh water. After the construction completed in 1968, the reservoir had a storage capacity being 3 times the total capacity of all other reservoirs combined. After the severe drought in 1960s, the Government decided to embark the High Island Water Scheme in 1971. The Reservoir was built on the narrow strait situated between the southern part of the Sai Kung Peninsula and the High Island in Rocky Harbour. The works included building of 2 main dams to create an artificial lake. Upon the completion in 1978, the reservoir's capacity is about 13% higher than that of the Plover Cove Reservoir. The idea of constructing reservoir as a lake reclaimed from the sea was, in terms of planning and investment, innovative and unprecedented. After that, Hong Kong's total storage capacity of all reservoirs was substantially increased, providing almost 20-30% of Hong Kong's fresh water.

Source and Image: Water Supplies Department