The multi-purpose dam provides water for irrigation and hydroelectric power generation while its reservoir affords flood control.

The P6.75-B Project provides irrigation to 26,920 hectares of new farms in the Science City of Munoz, Talugtog, Guimba, Cuyapo, and Nampicuan, all of Nueva Ecija.

[1][2] In August 1987, former President Corazon Aquino signed Executive Order 136, which provides for the establishment of a Watershed Forest Reserve out of the Casecnan River.

[2] In September 2001, former President Gloria Macapagal Arroyo finally opened the diversion tunnel after two years after the Phase I of the Casecnan project was done.

[3] When the Ramos government approved the start of the Casecnan project, the constructed power plant was planned to have produced 150 megawatts.