Did you know? One of Bukit Timah’s biggest changes in October 2026 is mostly invisible when the sky is blue. It is not a new shopping mall or an MRT entrance. It is a canal designed to move more rainwater when storms arrive.
Quick answer, checked 24 October 2026: On 23 October 2026, national water agency PUB announced the completion of upgrading works along the full 2.3km Upper Bukit Timah Canal. The improved waterway can convey 30% more stormwater than before. Yet PUB is explicit: no drainage system can eliminate flood risk entirely. Read PUB’s official announcement.
What changed in the canal?
The final 900-metre stretch, between Rifle Range Road and Jalan Kampong Chantek near King Albert Park MRT, had been under improvement since October 2019. Its completion follows upstream works from Jalan Jurong Kechil to Rifle Range Road, finished in 2024.
Instead of its former trapezoidal form, PUB says the upgraded section has been widened and deepened, incorporating a U-shaped drain and box culvert. Its extra conveyance capacity means water can move through this section more effectively during heavy rainfall.
For a parent travelling between Beauty World and King Albert Park, the practical benefit is not an abstract engineering percentage. It is a better-prepared drainage system serving a catchment with homes, shops, schools and transport links.
Why 30% more capacity is not the same as zero floods
Think of a canal like the width of a doorway during a school dismissal. A wider exit can let people pass through more efficiently, but if arrivals greatly exceed the flow it can handle, a crowd may still build up.
Rainfall works in a similar way. Water arrives from roads, rooftops and surrounding slopes. The canal must carry it onward. Improving its capacity helps, but unusually intense rain may still arrive faster than the system can move it. Ground conditions, topography and downstream connections also matter.
PUB says the upgrade improves resilience for an approximately 1,000-hectare catchment including Beauty World, nearby commercial areas and the Beauty World and King Albert Park MRT stations. The agency cautions that very intense storms could still overwhelm the system. See the agency’s stated limits.
A timeline from yesterday’s milestone into 2027
- 2019: improvement work began on the final 900m section.
- 2024: an upstream stretch between Jalan Jurong Kechil and Rifle Range Road was completed.
- 23 October 2026: PUB announced completion of the entire 2.3km Upper Bukit Timah Canal upgrade and its 30% capacity increase.
- End of 2026: PUB said it would call a tender for a feasibility study on longer-term flood-resilience options for the wider Bukit Timah catchment.
- 2027: residents should watch for study procurement, updates and any confirmed next steps. This is not a promised completion year for a new flood-control structure.
What might be studied next?
PUB has said future possibilities include underground detention structures, which temporarily store stormwater during intense rainfall, as well as integration with existing infrastructure and public spaces. A feasibility study will examine what could work. It is not an announcement that underground tanks have already been approved or scheduled.
This is where the future of Bukit Timah becomes a good cause-and-effect story. As rainfall patterns become less predictable and the neighbourhood evolves, drainage cannot be managed once and forgotten. The infrastructure must adapt to future conditions as well as past storms.
How this connects to the planned green corridor
There is another layer to the story: the canal improvement works were coordinated with supports for the future elevated Bukit Timah–Rochor Green Corridor. NParks estimates that the green corridor’s first approximately 1km link, from the Rail Corridor to Jalan Kampong Chantek, will be completed by 2027. A completed drainage upgrade in 2026 and a recreational walkway target in 2027 are different milestones. See the separate NParks timeline.
Three practical things to remember in heavy rain
- Keep an eye on official PUB flood advisories and weather alerts, particularly during intense downpours.
- Do not enter flooded underpasses, waterways or road sections; a recently upgraded canal is not a guarantee that every nearby low point stays dry.
- Allow for route changes during severe storms and follow current public-safety instructions instead of assuming yesterday’s usual path remains safe.
Frequently asked questions
Has the Upper Bukit Timah Canal upgrade finished?
Yes. PUB announced completion of the full 2.3km programme on 23 October 2026.
Does ‘30% more’ mean the canal will never overflow?
No. The figure describes increased stormwater conveyance capacity, not the elimination of every flood scenario.
Is PUB building underground detention tanks in 2027?
Not according to the October 2026 announcement. Underground detention is one option to be assessed through a forthcoming feasibility study; it is not a confirmed 2027 construction commitment.
Is the elevated green corridor already open?
No opening is established by the drainage completion notice. NParks lists estimated completion of its first phase by 2027, subject to further updates.
Sources, with dates
The primary account is PUB’s 23 October 2026 completion announcement. For the connected future walking route, consult NParks’ 2026 Green Corridor update. For background on why this area has different stormwater routes, read Bukit Timah’s two diversion canals explained.
Last fact-checked: 24 October 2026. Flood risk and development dates can change; follow PUB’s live notices for current safety information.
More in the Future of Bukit Timah series: Turf City homes (2026–2027) · Cross Island Line works · 2027 green walk.