Lake Caliraya

Lake Caliraya
Landsat photo
Lake Caliraya Location within the Philippines
Location	Laguna and Quezon, Luzon Island
Coordinates	14°17′24″N 121°31′48″E / 14.29000°N 121.53000°E / 14.29000; 121.53000Coordinates: 14°17′24″N 121°31′48″E / 14.29000°N 121.53000°E / 14.29000; 121.53000
Type	artificial lake
Basin countries	Philippines
Max. length	8 km (5.0 mi)
Max. width	3 km (1.9 mi)
Surface area	1,050 ha (2,600 acres)
Shore length1	157 km (98 mi)
Surface elevation	300 m (980 ft)
Islands	over 30
Settlements	Cavinti Kalayaan Lumban
1 Shore length is not a well-defined measure.

Lake Caliraya is a man-made lake situated in the municipalities of Lumban, Cavinti, and Kalayaan in Laguna province, Philippines. Created in 1939, the lake has developed as a popular spot for water sports and outdoor recreation including fishing. Surrounding the lake are a number of resorts catering to tourists and vacation homes abound because of the beautiful scenery and favorable climate.

Lake Caliraya was created after the construction of Caliraya Dam, an embankment dam started in 1939 by US Army Corps of Engineers Chief in the Philippines, Lieutenant Colonel (later Major General) Hugh J. Casey, with the approval of Philippine Commonwealth President Manuel L. Quezon. The Caliraya River was dammed at its outlet from a large flat plateau area providing a large water reservoir for generating hydroelectric power for Southern Luzon. The dam was over 100 feet (30 m) high from which a diversion canal was constructed several miles to the head of a steep slope about 950 feet above Laguna de Bay. Large were constructed diverting water down to the powerhouse below, with tailrace to the bay. The high head permitted the use of high-speed turbines and generators at relatively low unit costs. Initial estimate for the project was $5 million, or 10 million pesos, and an output of 40,000 horsepower.