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Metropolitan Waterworks Authority Announces Water Outages and Low Pressure on 21 May 2026 in Bangkok, Nonthaburi, and Samut Prakan

Society20 May 2026 15:15 GMT+7

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Metropolitan Waterworks Authority Announces Water Outages and Low Pressure on 21 May 2026 in Bangkok, Nonthaburi, and Samut Prakan

The Metropolitan Waterworks Authority (MWA) announces areas experiencing water outages and low water pressure on 21 May 2026 in Bangkok, Nonthaburi, and Samut Prakan. Check which areas are affected.


MWAorMetropolitan Waterworks AuthorityReports water outages and low water pressure on 21 May 2026 due to pipeline maintenance, pipe joint cutting, pressure adjustment, and suspension of pumping station and water treatment plant operations.

Announcement of water outages on 21 May 2026 at work sites in Bangkok, Nonthaburi, and Samut Prakan.

1. Bang Bon 4 Road

  • From 02:03 to 06:00 hrs. Pipe burst and leakage. Pipe size: 300 mm PVC.
  • Affected areas: Work site along road near Kasikorn Bank ATM in front of PT Bang Bon 4 gas station; water outage from Klong Rang Phai to Klong Nam Daeng, including Sukanan Private Home Village, Centro Bang Bon Village, and all nearby side alleys.

2. Pridi Banomyong 13

  • From 10:00 to 15:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Entire lanes of Pridi Banomyong 13 and Pridi Banomyong 15.

3. Soi Charansanitwong 52

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Charansanitwong 52, and even-numbered sides of Soi Charansanitwong 50-54.

4. Charansanitwong 71 Soi 3

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Charansanitwong 71, and Charansanitwong 71 Soi 3.

5. Along Bang Khun Non Road (even side)

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Bang Khun Non Road, along the even-numbered side of Bang Khun Non Road.

6. Mahadthai 1 Village, Phutthamonthon Sai 1

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Phutthamonthon Sai 1 Road, Mahadthai 1 Village.

7. Suphapburut Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm AC.
  • Affected areas: Thawi Watthana Road, Liab Klong Noen Sai Road, Thawi Watthana 19-21 odd side, Liab Klong Noen Sai Road.

8. Thian Thale Soi 20 Intersection 5

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm ST.
  • Affected areas: Thian Thale Road, from the mouth of Soi Thian Thale 20 on the left side to Soi Thian Thale 20 Intersection 5.

9. Krung Thonburi Road Soi 4 Intersection 17

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Krung Thonburi Road, Soi Krung Thonburi 4 Intersection 9 to Intersection 17.

10. Samae Dam Road along Klong Sanam Chai

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm AC.
  • Affected areas: Samae Dam, entire Klong Sanam Chai area.

11. Inthraphithak Road Soi Wat Yai Srisuphan 2

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm ST.
  • Affected areas: Inthraphithak Road, Inthraphithak Road Soi Wat Yai Srisuphan, including Ton Yang, Ton Wa, and Phunsub alleys.

12. Taksin Road Soi 4

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Taksin Road, entire Soi Taksin 4.

13. Charoen Nakhon Road Soi 48

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Charoen Nakhon Road, entire Soi Charoen Nakhon 48.

14. Wutthakat Road Soi 47

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Wutthakat Road, from the railway near Wat Nang Nong to Soi Wutthakat 47.

15. Nonthaburi Soi 33 (Wat Chomphu Wet area) Sanambin Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Sanambin Road, from the mouth of Soi Nonthaburi 33 (Wat Chomphu Wet) on the right side to Wat Chomphu Wet.

16. Sukha Pracha San 2 Soi 19

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 50 mm PB.
  • Affected areas: Sukha Pracha San 2 Road (left side) from Chaeng Watthana-Pak Kret Road from Khlong Thonglang to Wat Bang Phut Nok, entire area.

17. Phayathai Village

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Sukha Pracha San 2 Road (right side) from Chaeng Watthana-Pak Kret Road from Khlong Thonglang to Khlong Bang Phut, entire area.

18. Wat Chomphu Wet Soi 5 (Soi Nonthaburi 33) Sanam area

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Sanambin Road, from the mouth of Soi Nonthaburi 33 (Wat Chomphu Wet) on the right side and left side, including Soi Wat Chomphu Wet 1, 3, 5, up to the bend opposite the gate to Wat Chomphu Wet.

19. Noble Tara Village, Phatthanakan

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm ST.
  • Affected areas: Phatthanakan Road, from Soi Phatthanakan 48 to Phatthanakan Intersection to Srinakarin Road, including all side alleys.

20. Bang Waek Soi 110

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Bang Waek and Bang Waek 110.

21. Chanantorn Ville

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Liap Tai area, entire Chanantorn Ville.

22. Saeng Tawan Village, Soi Ban Nai Rien, Bang Bon Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Bang Bon 3, Soi Ban Nai Rien from Bang Bon 3 to Saeng Tawan Village.

23. Senanivet Soi 113, 115

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Senanikom, Prasert Manukit, Senanivet Soi 105-125 (entire Senanivet Project 1).

24. Ramintra Soi 85

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Ramintra, Ramintra Soi 83-85, Lam Kret canal community.

25. Chokchai 4 Soi 53

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Chokchai 4, Ladprao Wanghin, Soi Chokchai 4 Soi 41-73, Soi Ladprao Wanghin 32-58.

26. Prasert Manukit Intersection 8 Soi 14 (Niam Klam Village)

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm AC.
  • Affected areas: Prasert Manukit (Maylarp), Prasert Manukit Intersection 8 (Niam Klam Village).

27. Siriplace Village, Bua Nakharin Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Bua Nakharin Road entirely, and from Soi Nam Daeng to Bang Phli 41-45 including side alleys.

28. Khlong Pak Nam, Thung Setthi Soi, Ramkhamhaeng 2 Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm ST.
  • Affected areas: Ramkhamhaeng 2 Road, Thung Setthi Soi 2-26 and Thung Setthi Soi 21-45 including side alleys.

29. DM-03-05-08

  • From 10:00 to 16:00 hrs. DMA system operation. Pipe size: 300 mm PVC.
  • Affected areas: 1. Bangna-Trad Road from Soi Bangna-Trad 41 to Soi Bangna-Trad 55 including side alleys; 2. Chanya Wat Road from Bangna-Trad Road to Khlong Long Rwae including both sides; 3. Kanchanaphisek Road from Bangna-Trad Road to Khlong Ton Tan.

30. Srinakarin Soi 42, Srinakarin Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Srinakarin Road, Srinakarin Soi 40-42 including side alleys.

31. Ladplakao Soi 72 Intersection 4, Ladplakao Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Ladplakao, inside Soi Ladplakao 72 and intersections 2-14, Ramintra 8 Soi 14-24.

32. Khlong Hua Kluay area

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm ST.
  • Affected areas: Ladwai Road, along Khlong Hua Kluay near Ekasap Village.

33. Bang Phli-Silung Soi

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Sukhumvit Road, entire Bang Phli-Silung Soi.

34. Thai Prakan Soi

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Thepharak Road, entire Thai Prakan Soi.

35. Suk Khiao Soi, Hathairat Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Hathairat Road, from Suk Khiao Soi to Sammakorn Village Minburi 1.

36. Suwinthawong Soi 13 Intersection 20

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Suwinthawong Road, from Soi Suwinthawong 11 to Lam Sai Canal Bridge.

37. Sangkhasantisuk Road Soi 24

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Sangkhasantisuk Road, including Soi 24 and Youwitthaya Road Soi 9.

38. Soi Phraya Suren 30

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Phraya Suren, left side of Soi Phraya Suren 30, from the mouth of the soi to the Khlong Khip Moo Bridge.

39. Soi Wat Sudjai

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Nimit Mai Road, from the mouth of Soi Wat Sudjai odd side to Wat Sudjai Soi 13.

40. Chalada Village

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Bang Kruai-Sai Noi, Chalada Village.

41. Chaiphruek Village

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm AC.
  • Affected areas: Bang Kruai-Sai Noi, inside the village.

42. NB.1007, Highway 9 Intersection

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Arisara Village.

43. Duang Thong

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Bang Kruai-Sai Noi, Duang Thong.

44. KSL road, Soi intersection Thanon 345 to Pratu Nam Klong Bang Bua

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Along Khlong Khan Aen Road, beside Khlong Khan Aen Road.

45. Liab Khlong Sahakorn Road

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Liab Khlong Sahakorn Road entirely.

46. Phatthana Chonabot 3

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 150 mm PVC.
  • Affected areas: Phatthana Chonabot 3.

47. Chalong Krung 8

  • From 10:00 to 16:00 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Liab Khlong Mon, Chalong Krung 8.

48. Wat Lum School

  • From 10:00 to 16:30 hrs. Pipe joint cutting. Pipe size: 100 mm PVC.
  • Affected areas: Bang Kruai-Sai Noi Road, Wat Lum School Soi.

49. TB.99 to Metropolitan Electricity Authority

  • From 10:00 to 16:30 hrs. Pipe joint cutting. Pipe size: 300 mm PVC.
  • Affected areas: Bang Yai-Bang Khu Lat Road, Bang Yai-Bang Khu Lat Soi near Metropolitan Electricity Authority.

50. Bang Kruai-Sai Noi Soi 12/3

  • From 10:00 to 16:30 hrs. Pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Bang Kruai-Sai Noi Road, Soi Bang Kruai-Sai Noi 12/3.

51. Soi Pradu 1

  • From 10:00 on 21 May 2025 to 02:00 hrs, step test. Pipe size: 300 mm ST.
  • Affected areas: Pradu 1, Charoen Rat 7, and all minor side alleys.

52. Maha Chak Road

  • From 22:00 hrs on 21 May 2025 to 04:00 hrs, pipe joint cutting. Pipe size: 200 mm AC.
  • Affected areas: Yaowarat Road, Ratchawong Road, Charoen Krung Road, Mangkon Road, Maha Chak Road, Wiwat Wiang Road, Charoen Krung Soi 12-14, Yaowarat Soi 8-10.

53. In front of Siam Commercial Bank

  • From 22:00 hrs on 21 May 2025 to 04:00 hrs, pipe joint cutting. Pipe size: 200 mm PVC.
  • Affected areas: Bang Kruai-Sai Noi, Chalada Village.

54. In front of Siam Commercial Bank, Kanchanaphisek Road

  • From 22:00 hrs on 21 May 2025 to 05:00 hrs, main valve closure. Pipe size: 1500 mm.
  • Affected areas: Water flow reduced to weak or no flow in the SSB branch area along Kanchanaphisek Road (both sides) from Khlong Bang Ramad to Khlong Bang Chuak Nang; Phutthamonthon Sai 2 Road (both sides) from Khlong Ban Sai Chuak Nang to Khlong Bang Chuak Nang; Borommaratchachonnani Soi (odd side) 63 to Soi 123 (even side) 46 to 78; Phutthamonthon Sai 3 Road (both sides) from Khlong Bang Khu Wiang to Khlong Bang Chuak Nang; Salathammasop Road (both sides); Uthayan Road (both sides); Thawi Watthana Road (both sides); Liab Khlong Wi Watthana Road (both sides) (SST branch area). Kanchanaphisek Road from Phetkasem Road intersection to Khlong Bang Chuak Nang; Phutthamonthon Sai 2 Road from Phetkasem Road to Khlong Bang Chuak Nang (even side); Phetkasem Road from Kanchanaphisek Road intersection to Phutthamonthon Sai 2 Road; Bang Waek Road from Khlong Rajmontri to Phutthamonthon Sai 2 Road.

55. Mouth of Soi Ramkhamhaeng 58/3

  • From 22:00 hrs on 21 May 2025 to 05:00 hrs, pipe joint cutting. Pipe size: 300 mm AC.
  • Affected areas: Ramkhamhaeng Road, from Soi Ramkhamhaeng 56 to Soi Ramkhamhaeng 58/5 and roadside up to Soi Ramkhamhaeng 60/1; Srinakarin Road, from Lam Sali intersection to Rung Ruang AEC Trading Company; water outage at all intersections and sois.

56. Near Soi Krungthep Kreetha 10

  • From 22:00 hrs on 21 May 2025 to 05:00 hrs, pipe joint cutting. Pipe size: 300 mm AC.
  • Affected areas: Krungthep Kreetha Road, water outage on the right side from Khlong Ban Ma to Soi Krungthep Kreetha 18; water outage at all intersections and sois.