Pasak Jolasid Dam opens 7 gates as water hits 106.80%

Matichon•Society•5d ago

Reader Briefing

The Pasak Jolasid Dam has opened all seven spillway gates to manage water levels exceeding 106% of capacity.

•Pasak Jolasid Dam opened all 7 spillway gates on October 1.
•Water volume in the reservoir reached 930.78 million cubic meters, or 106.80% of normal capacity.
•Water discharge will increase to 400 cubic meters per second until October 2, 2026.
•The Thai Meteorological Department predicts heavy rain in lower Northern Thailand, Central Thailand, and Lopburi Province from October 3-6.

•Pasak Jolasid Dam currently holds 930.78 million cubic meters of water, which is 106.80% of its normal storage capacity.
•The Pasak Jolasid Dam Water Transmission and Maintenance Project opened all 7 spillway gates on October 1 to accelerate water drainage in a stepped manner.
•Water discharge increased from 115.08 cubic meters per second in the morning to 145 cubic meters per second, with a planned increase to 400 cubic meters per second by October 2, 2026.
•The Thai Meteorological Department forecasts a monsoon trough over lower Northern Thailand, Central Thailand, and Lopburi Province between October 3-6, which will cause heavy rain and more inflow.
•The water level in the Pasak River is expected to rise by approximately 1.00-1.50 meters from current levels.
•Pasak Jolasid Dam advised residents along the Pasak River and risk areas, specifically in Tha Ruea District, Phra Nakhon Si Ayutthaya Province, downstream of Rama VI Dam, to monitor the situation closely.
•Irrigation Office 10 and Pasak Jolasid Dam will continue to monitor rainfall and inflow to manage water and reduce impacts on residents.

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Pasak Jolasid Dam(เขื่อนป่าสักชลสิทธิ์)ℹ️

A dam in Phatthana Nikhom District, Lopburi Province, currently managing water levels exceeding 100% capacity.

Pasak River(แม่น้ำป่าสัก)ℹ️

The river expected to rise by 1.00-1.50 meters due to increased discharge from Pasak Jolasid Dam.

Rama VI Dam(เขื่อนพระราม 6)

A dam used as a reference point for the monitoring area downstream along the Pasak River.

Tha Ruea District, Phra Nakhon Si Ayutthaya Province(อำเภอท่าเรือ จังหวัดพระนครศรีอยุธยา)

An area identified as needing surveillance due to potential water level increases.

Phatthana Nikhom District, Lopburi Province(อำเภอพัฒนานิคม จังหวัดลพบุรี)

The location of Pasak Jolasid Dam.

Pasak Jolasid Dam Water Transmission and Maintenance Project(โครงการส่งน้ำและบำรุงรักษาเขื่อนป่าสักชลสิทธิ์)

The entity responsible for opening the 7 spillway gates at Pasak Jolasid Dam.

Thai Meteorological Department(กรมอุตุนิยมวิทยา)ℹ️

The agency that forecasted a monsoon trough and heavy rain between October 3-6.

Irrigation Office 10(สำนักงานชลประทานที่ 10)

The agency monitoring rainfall and inflow to manage water levels alongside Pasak Jolasid Dam.