How will Selangor speed up its holistic flood solution?

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Selangor Outlines Comprehensive Strategy to Expedite Flood Mitigation

Selangor is set to accelerate its holistic approach to tackling the state's persistent flooding issues through a multi-pronged strategy. Key components of this plan involve significantly deepening Sungai Klang and constructing a new drainage tunnel originating from Shah Alam. These initiatives aim to enhance the state's capacity to manage water flow, particularly during periods of intense rainfall and monsoon seasons. The proposed measures are designed not only to prevent future flood disasters but also to create a more resilient water management system for the entire state.
Deepening Sungai Klang to Increase Capacity

A significant undertaking in the proposed flood mitigation plan is the deepening of Sungai Klang. This project is slated to double the river's depth along the stretch between Kuala Lumpur and Klang. The estimated cost for this extensive river rehabilitation effort exceeds RM500 million. The rationale behind this measure is to substantially increase the river's capacity to hold and channel water, thereby reducing the likelihood of overflow into surrounding areas. The project is expected to be executed by a state government-linked company, indicating a direct involvement of state resources and entities in its implementation.
Construction of a Drainage Tunnel from Shah Alam

In addition to river deepening, the state is considering the construction of a dedicated drainage tunnel. This proposed tunnel would originate from Shah Alam and be designed to divert water from Sungai Damansara. The ultimate destination for this diverted water would be Tasik Ladam, situated near Sungai Rasau in Klang. This infrastructure project aims to create an alternative pathway for excess water to be channelled away from densely populated areas like Shah Alam, further alleviating flood risks.
Policy Amendments for Retention Pond Management

A crucial element of the holistic solution involves a review of existing policies concerning retention ponds across Selangor. There is a recognised need for a policy framework that permits the controlled, partial draining of these ponds. Such an adjustment would allow for proactive water level management in anticipation of the monsoon season or when forecasts indicate impending heavy rainfall. This measure is intended to create additional storage capacity within the existing pond network, enabling them to better absorb sudden influxes of water and prevent them from overwhelming local drainage systems.
Integrated Water Management and Resource Utilisation

The plan also incorporates innovative uses for the managed water, particularly in the downstream areas of Sungai Klang, such as Klang itself. The implementation of systems like the Hybrid Off-River Augmentation System (Horas) 3000, along with other large-scale ponds, will be employed to prevent flooding. Critically, the water stored in these facilities is earmarked for treatment and subsequent supply to the Pulau Indah area, which is currently experiencing a shortage of potable water. This integrated approach ensures that flood mitigation efforts also contribute to water resource security, with the stored water being a valuable asset during periods of drought.

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How will Selangor speed up its holistic flood solution?

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