The San Roque Dam, operates under San Roque Multipurpose Project (SRMP) is a 650 foot tall, 3500 foot long embankment dam on the Agno River. It spans the municipalities of San Manuel and San Nicolas, Pangasinan and is nearly 130 miles north of Manila. The dam impounds a reservoir with a surface area of about 10 square miles extending north into the municipality of Itogon, Benguet.
A gated spillway protects the dam from overflowing 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 140 miles and a drainage basin at the Project site of 625 square miles. 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. The project took five years to build and employed 3500 workers at peak construction.
The Company excavated almost 50 million cubic yards of material to construct the dam