Drainage Services Department The Government of the Hong Kong Special Administrative Region Brand HK
GovHK 简体版 繁體版
Submit search query Site Map
Default Font Size Larger Font Size Largest Font Size
Contact Us
Explanation of WCAG 2.0 Level Double-A Conformance
Mobile Version
Mobile App
Flood Prevention >Keeping the Drainage System in Good Shape >

Flood Warning Systems

As interim measures to minimize flood losses before the long-term improvement works are completed, local flood warning systems have been installed at flood prone villages and areas to inform the villagers and locals when the flood water reaches a predetermined alert level. The warnings are disseminated through flood sirens or through automatic telephone calls to the village representatives. This system aims at alerting villagers before flooding occurs, so that they can have enough time to leave or take precautionary measures.

Schematic layout of Flood warning system
       Schematic layout of Flood warning system


Flood Siren

Alarm Cut- off Button

Flood Warning System