MP Urges BMA to Vet Drainage Tunnel Contractor

Khaosod•Politics•1d ago

Reader Briefing

Nattaphong Prempoolsawat calls on Governor Chadchart Sittipunt to use regulatory powers to vet a contractor for the Bueng Nong Bon drainage tunnel extension project.

•Nattaphong Prempoolsawat, a People's Party MP for Bangkok, raised concerns on October 4, 2026.
•The project involves the Bueng Nong Bon drainage tunnel extension from Khlong Prawet Burirom to Khlong Si with a budget of 9,561 million baht.
•The lowest bidder is reportedly a company currently under a business rehabilitation plan.
•The contractor is already managing other BMA projects, including Khlong Prem Prachakorn and Khlong Thawi Watthana tunnels, which are over 30% behind schedule.

Overview

•On October 4, 2026, Nattaphong Prempoolsawat called for clarity regarding the Bueng Nong Bon drainage tunnel extension project.
•Nattaphong Prempoolsawat stated that current drainage efficiency at Khlong Prawet Burirom is the slowest in Bangkok.
•The Bueng Nong Bon drainage tunnel extension project has a budget of 9,561 million baht.
•Nattaphong Prempoolsawat warned that the lowest bidder is a company in a business rehabilitation plan and has delayed existing BMA projects by over 30%.
•Nattaphong Prempoolsawat expressed concern that if a company with liquidity problems abandons the project, finding a new contractor would be very difficult.
•Nattaphong Prempoolsawat proposed that the Bangkok Metropolitan Administration use power under Clause 6.5 of the invitation announcement to call the bidder for financial clarification.
•Nattaphong Prempoolsawat requested the Comptroller General's Department to clarify if companies under rehabilitation plans are eligible for state projects of this scale.
•Nattaphong Prempoolsawat urged Chadchart Sittipunt to decisively apply Clause 6.5 to ensure the project is completed and to prevent severe flooding in eastern Bangkok.

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Key Entities

Person

Nattaphong Prempoolsawat(ณัฐพงศ์ เปรมพูลสวัสดิ์)

An MP for Bangkok from the People's Party.

Chadchart Sittipunt(ชัชชาติ สิทธิพันธุ์)ℹ️

The Governor of the Bangkok Metropolitan Administration.

Organization

People's Party(พรรคประชาชน)

The political party of MP Nattaphong Prempoolsawat.

Bangkok Metropolitan Administration(กรุงเทพมหานคร)ℹ️

The local government body overseeing the drainage tunnel projects in Bangkok.

BMA Department of Drainage and Sewerage(สำนักการระบายน้ำ กทม.)

The agency managing the drainage tunnel projects.

Comptroller General's Department(กรมบัญชีกลาง)ℹ️

The government agency requested to clarify contractor qualification levels.

Place

Bueng Nong Bon(บึงหนองบอน)

The site of the drainage tunnel project capable of storing 5 million cubic meters of water.

Khlong Prawet Burirom(คลองประเวศบุรีรมย์)ℹ️

A canal with slow drainage efficiency and the starting point of the tunnel extension.

Khlong Si(คลองสี่)

The endpoint of the Bueng Nong Bon drainage tunnel extension.

Khlong Prem Prachakorn(คลองเปรมประชากร)

The site of a delayed drainage tunnel project managed by the same contractor.

Khlong Thawi Watthana(คลองทวีวัฒนา)ℹ️

The site of a delayed drainage tunnel project managed by the same contractor.

Khlong Nong Bon(คลองหนองบอน)

A small canal that limits water transport to Bueng Nong Bon.

Khlong Makham Thet(คลองมะขามเทศ)

A small canal that limits water transport to Bueng Nong Bon.

Policy

BMA Invitation Announcement Clause 6.5(ประกาศเชิญชวนฯ ของ กทม. ข้อ 6.5)

A regulation allowing the BMA to call bidders for financial clarification and potentially reject unsuitable proposals.