Spilling operations at Ambuklao Dam halted

Published October 23, 2021, 12:20 PM

by Ellalyn De Vera-Ruiz

Ambuklao Dam (NAPOCOR WEBSITE)

Authorities have stopped Ambuklao Dam’s spilling operations on Saturday, Oct. 23, based on the dam update of the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).

In the PAGASA’s latest monitoring, the water level of Ambuklao Dam in Benguet was down to 750.99 meters, or below its 752.0-meter normal high water level.

Its water level was 751.0 meters on Friday, Oct. 22, when two spillway gates were still discharging excess water from the reservoir.

The dam conducted spilling operations that began on Oct. 11, before the onslaught of severe tropical typhoon “Maring” (international name “Kompasu) in Luzon.

Meanwhile, Binga Dam in Benguet and Magat Dam in Isabela have already stopped their spilling operations on Friday, Oct. 22, and Thursday, Oct. 21, respectively.

Ambuklao Dam is part of a series of cascading dams, along with Binga Dam in Benguet and San Roque Dam in Pangasinan.

During spilling operations, most of the water outflow from Ambuklao and Binga Dams goes down to San Roque Dam in Pangasinan.

PAGASA’s monitoring on Saturday showed that Binga Dam’s water level was 574.31 meters, or 0.69 meters short of its 575.0-meter normal high water level.

Meanwhile, San Roque Dam’s water level was 280.49 meters, a little over its 280.0-meter normal high water level.

No dam in Luzon is conducting spilling operations as of Saturday noon.

 
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