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 The usual capacity of a natural river is roughly sufficient only to meet a biennial flood. In order to increase its capacity to meet the flood under design extreme events, the river needs to be trained by straightening, widening and provision of linings.

Training of the section of Shenzhen River between Ping Yuen River and the estuary, Ng Tung River in Sheung Shui, Shan Pui River in Yuen Long and Kam Tin River were completed. 

Yuen Long Bypass Floodway 
                                            Yuen Long Bypass Floodway

Regulation of Shenzhen River at Liu Pok
 Regulation of Shenzhen River at Liu Pok

Regulation of Shenzhen River at Lok Ma Chau
Regulation of Shenzhen River at Lok Ma Chau

Completed river training works at Ng Tung River near Tin Ping Shan, Sheung Shui
     Completed river training works at Ng Tung River near Tin Ping Shan, Sheung Shui

River Training at Yuen Long
       River Training at Yuen Long

Training and widening of Kam Tin River
 Training and widening of Kam Tin River