The San Roque Dam, operated under San Roque Multipurpose Project (SRMP) is a massive gated spillway of 200 meters height, 1.2 kilometer length embankment dam on the Agno River spanning the municipalities of San Manuel and San Nicolas, Pangasinan, nearly 200 km north of Metro Manila.
The dam impounds a reservoir with a surface area of about 12.8 square kilometers extending North into the municipality of Itogon, Benguet.
A gated spillway protects the dam from overtopping. Each wet season,
the run-off is stored for later release via water turbines to generate
power and irrigate crops.
Agno River is the third largest river in the Philippines
with a total length of 221 kilometers and a drainage basin at the
Project site of 1,225 square kilometers. The river originates in the
Cordillera Mountains, initially flows from north to south, divides into
several channels in the flat central plain of Luzon and meanders
westerly through the provinces of Pangasinan and Tarlac before emptying
into the Lingayen Gulf.[1]
San Roque Power Corporation (SRPC) financed and constructed the SRMP under a power purchase agreement
(PPA) with the National Power Corporation (NPC) on a
Build-Operate-Transfer (BOT) basis. SRPC substantially completed the
SRMP at midnight, February 14, 2003, at which time its peaking power,
irrigation, flood control and enhanced water quality benefits became
available to the surrounding regions, which include the Northwest Luzon
Economic Growth Quadrangle. In reality, all but its power benefits have
been available since mid-2002 when the dam and spillway were completed.
Ownership of the dam and spillway was transferred to NPC upon
construction completion, as it contributed funds for the non-power
components on behalf of several agencies. SRPC will own and operate the
power generating facilities for 25 years, after which their ownership
transfers to NPC.
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