Metropolitan Waterworks Authority Announces Water Outages and Low Pressure Areas on 21 Sep 2026: Check Impacted Locations

The Metropolitan Waterworks Authority (MWA) announces areas with "no water flow and low water pressure" on 21 September 2026. Check which locations will be affected.

A reporter stated that the websiteMetropolitan Waterworks AuthorityorMWAannounced areas with no water flow and low water pressure on 21 September 2026 due to pipeline maintenance, main pipeline connection shutdowns, pressure adjustments, and suspension of pumping station and water treatment plant operations. Details are as follows:

Notification of no water flow on 21 September 2026 at operational points (covering Bangkok, Nonthaburi, and Samut Prakan):

1. Sangkhāsantisuk Road

• From 10:00 to 16:00, main water pipeline connection shutdown, pipe size: 150 mm PVC.
• Affected area: Sangkhāsantisuk Soi 30, only within Soi 30.

2. Bang Kruai-Sai Noi Road opposite Sor Prajak 7

• From 20:00 to 23:30, work in the DMA system, pipe size: 300 mm PVC.
• Affected area: Bang Kruai-Sai Noi Road, roadside areas of Bang Kruai-Sai Noi Road.

3. Temporary water supply suspension to shut off main pipeline connection size 800 mm at Sweet Inn Hotel on Tiwannon Road.

• From 22:00 on 21 Sep 2026 until 05:00 on 22 Sep 2026, main pipeline valve closure, pipe size: 800 mm Steel.
• Affected area: Water pressure low to no flow on odd-numbered side of Tiwannon Road from Pak Kret Five-Way Intersection to Nonthaburi Bridge; even-numbered side of Tiwannon Road from Pak Kret Five-Way Intersection to Li Meng Pak Kret Intersection; odd-numbered side of Chaengwattana Road from Pak Kret Five-Way Intersection to Chaengwattana-Pak Kret Soi 15; Li Meng Pak Kret both sides from Chaengwattana Intersection to Tiwannon Intersection.

4. Temporary water supply suspension for equipment maintenance at Si Phraya Road intersecting Charoenkrung Road.

• From 22:00 on 21 Sep 2026 until 05:00 on 22 Sep 2026, pumping station and water treatment plant shutdown.
• Affected area: Water pressure low to no flow on Charoenkrung Road from Sathorn Nuea Intersection to Si Phraya Intersection; south side of Si Phraya Road from Naresuan Intersection to Si Phraya Pier; Surawong Road from Charoenkrung Intersection to Narathiwat Ratchanakarin Intersection; Silom Road from Charoenkrung Intersection to Narathiwat Ratchanakarin Intersection; Sathorn Nuea Road from Charoenkrung Intersection to Narathiwat Ratchanakarin Intersection; west side of Narathiwat Ratchanakarin Road from Sathorn Nuea Intersection to Surawong Intersection; Naresuan, Mahesak, Mahet, and Surasak Roads.

5. Temporary water supply suspension to shut off main pipeline connection size 1000 mm at Ratchaprarop Road intersecting Sri Ayutthaya Road.

• From 22:00 on 21 Sep 2026 until 05:00 on 22 Sep 2026, main pipeline valve closure, pipe size: 1000 mm Cast Iron.
• Affected area: Water pressure low to no flow on south side of Sri Ayutthaya Road from Phaya Thai Intersection to Ratchaprarop Intersection; both sides of Ratchaprarop Road from Sri Ayutthaya Intersection to Pratu Nam Intersection; Nikom Makkasan Road; Phetchaburi Road from Ratchathewi Intersection to Asoke-Phetchaburi Intersection; east side of Ratchadamri Road from Khlong Saen Saeb to Ratchaprasong Intersection; north side of Phloen Chit Road from Ratchaprasong to Chidlom Intersection; west side of Chidlom Road from Chidlom to Khlong Saen Saeb; Witthayu Road from Khlong Saen Saeb to Phetchaburi Intersection; south side of Kamphaeng Phet 7 Road from Nikom Makkasan Intersection to Asoke-Din Daeng Intersection; west side of Asoke-Din Daeng Road from Kamphaeng Phet 7 Intersection to Phetchaburi Intersection; west side of Asoke Montri Road from Phetchaburi Intersection to Khlong Saen Saeb.

Information from the Metropolitan Waterworks Authority