Klang Flood Works: Sungai Klang Dredging Due in Two Years, RM40m for Bukit Raja Flash Floods

Key Takeaways

• Selangor says the dredging and widening of a 54 km stretch of Sungai Klang could finish in 18 months to two years, instead of the original five-year timeline, after the federal government approved more projects upstream and downstream.
• The state reports that river capacity has risen by 25 per cent and that the river's depth, which had silted down to about one metre, has been restored to four metres.
• Separately, the federal government has approved RM40 million to tackle flash floods around Bukit Raja, including i-City, but that project is still at the design stage.
• Budget 2027 sets aside RM100 million for retention ponds and river maintenance in the Klang Valley, and Selangor is studying new pond and drain sites in Shah Alam, Klang and Kajang.
• For factory buyers and tenants in Klang and Shah Alam, flood history, floor levels and insurance still need checking site by site: the works lower the risk, they do not remove it.

What Was Announced

On 22 October 2026, Selangor's executive councillor for infrastructure and agriculture, Datuk Izham Hashim, said the state is speeding up flood mitigation along Sungai Klang. Speaking after the Selangor Friends of Rivers (FOR) Workshop 2026 at the Selangor International Trade Centre in Shah Alam, he said the dredging and widening of a 54 km stretch of the river could now be completed within 18 months or two years. The original plan was five years. According to Bernama, the shorter timeline follows the approval of additional federal projects upstream and downstream.

Media Selangor reported that the project began two years ago under the Selangor Maritime Gateway (SMG) programme, managed by Landasan Lumayan Sdn Bhd. Rubbish and silt had cut the river's depth to about one metre from its original four metres. Izham said the deepening has raised the river's capacity by 25 per cent, up from the 20 per cent the Menteri Besar reported in April, and that riverbanks built with the Schematic Precast System (SPS) help the river carry higher flows during heavy rain. "I have already begun to see positive results, with fewer flooding problems," he said.

Bernama added three details that matter to property owners:

• Federal funding worth hundreds of millions of ringgit for floodwall construction has cut the state's remaining spending on the project to just over RM200 million.
• Dredging has been slowed by dumped debris, including bicycle frames, mattresses and heavy textiles, which damaged equipment.
• Property owners who allow illegal dumping on their premises could face legal action, including land forfeiture.

The Bukit Raja and Retention Pond Money

Four days earlier, on 18 October, Izham told reporters in Klang that Selangor is studying where to build new retention ponds and widen drains, with Shah Alam, Klang and Kajang named as the urban areas needing urgent solutions. As reported by Malay Mail, he said:

Why It Matters for Factory Owners and Tenants

Klang and Shah Alam hold some of the densest industrial land in Selangor, and flash floods there are a recurring business problem: damaged stock and machinery, lorries that cannot reach loading bays, and staff who cannot get to work. A deeper, wider Sungai Klang should reduce the backwater effect that keeps drains full after a downpour, which is one reason the state says flood incidents are falling.

Three points keep the news in proportion:

1. River works and flash floods are different problems. Dredging helps the main river carry more water. Flash floods in streets and industrial estates usually come from local drains that cannot cope with intense rain. That is why the Bukit Raja and retention pond money matters separately, and the Bukit Raja project is still being designed.
2. Timelines are targets. "18 months to two years" depends on the federal projects proceeding as approved. No completion date has been given for the Bukit Raja works.
3. Value follows evidence. A buyer will pay more for a site with a clean flood record over several monsoons, not for an announcement. Do not let a seller price in flood works that have not been finished.

For context, JPPH-registered transactions in Bukit Raja over the 24 months to August 2026 show a median of RM14.9 million for a detached factory (RM342 psf of land) and RM9.8 million for a semi-detached factory (RM446 psf of land). See the full breakdown on our Bukit Raja transaction prices and rents page.

Practical Next Steps

If you are buying or renting a factory in Klang or Shah Alam:

• Ask the owner or landlord directly whether the unit, the access road or the loading area has flooded in the last five years, and how deep the water reached.
• Check the river and rainfall readings near the site on the official Public InfoBanjir portal, and look at the site after heavy rain if you can.
• Compare the factory floor and loading dock levels with the road. A raised platform often matters more than distance from the river.
• Confirm that the fire insurance can be extended to cover flood, and ask the insurer whether the address has a past claim record.
• In a lease, agree in writing who pays for flood clean-up and repairs, and whether rent pauses if the premises cannot be used.

If you already own a factory:

• Keep the compound and the drains at the back of the lot clear. The state has warned that owners who allow illegal dumping can face legal action, including land forfeiture.
• Store high-value stock and electrical panels above the highest water level seen in past floods.
• Watch for the Selangor Budget 2027 next month, which is expected to list the next JPS flood projects.

Looking for a factory in Klang? Browse factories for sale in Klang, or talk to a Bukit Raja industrial property agent who can tell you which rows and roads have a clean record.

Frequently Asked Questions

When will the Sungai Klang dredging be finished?

Selangor's infrastructure exco, Datuk Izham Hashim, said on 22 October 2026 that the dredging and widening of the 54 km stretch could be completed within 18 months to two years. The original timeline was five years. The shorter target depends on additional federal projects upstream and downstream that have been approved.

Has the dredging reduced flooding in Klang?

The state says it has. River capacity has risen by 25 per cent and the depth has been restored from about one metre to four metres, and Izham said flood incidents are declining. Flash floods caused by local drains can still happen, so each site should be checked on its own record.

What is the RM40 million Bukit Raja flood project?

The federal government has approved RM40 million to address flash floods around Bukit Raja, including i-City. As of 18 October 2026 it was still at the design stage and needs more time before construction. No completion date has been announced.

Should I avoid buying a factory in Klang because of floods?

Not as a rule. Flood risk varies from street to street, and many units have never flooded. Check the unit's history, floor level and insurance terms before you commit, and compare the price with JPPH-registered transactions for the area.

Can a factory owner really lose land over illegal dumping?

The state warned on 22 October 2026 that property owners who allow illegal dumping on their premises could face legal action, including land forfeiture. Keeping your compound and nearby drains clean is the simple way to stay clear of it.

FactoryHub is dedicated to helping every client find the right factory or warehouse. For factories and warehouses in Klang, Bukit Raja and Shah Alam, WhatsApp Peter Tan (REN 12771) at 016-666 6872 or Jason Low (PEA 1478) at 012-288 1834.