The Relationship Between Kowloon Group of Reservoirs and West Kowloon Area
The Kowloon Group of Reservoirs comprises four reservoirs: the Kowloon Byewash Reservoir, Kowloon Reservoir, Shek Lei Pui Reservoir, and Kowloon Reception Reservoir. The Kowloon Byewash Reservoir is the lowest reservoir in the group, so the overflow from the other three reservoirs flows into it. Prior to the completion of the inter-reservoirs transfer tunnel, the overflow from the Kowloon Byewash Reservoir is discharged into the existing drainage system in Butterfly Valley and then flow into the Lai Chi Kok Drainage Tunnel or the drainage system in West Kowloon areas. However, due to the limited storage capacity of the Kowloon Group of Reservoirs, heavy rains often cause overflow, and the capacity of the existing drainage systems in West Kowloon areas are no longer adequate to cope with large quantity of stormwater, thereby increasing the risk of flooding in these areas.
Kowloon Byewash Reservoir