CITY OF SAN FERNANDO -- The Asian Development Bank (ADB) approved recently a US$123-million loan to the Metropolitan Waterworks and Sewerage System (MWSS) for the construction of a fourth tunnel at Angat Dam in Bulacan.
The tunnel measuring some 6.3-kilometers will stretch from Ipo Reservoir to the Bigte Reservoir of Angat Dam.
According to MWSS officials, the Angat Water Transmission Improvement Project aims to facilitate the delivery of water supply from Angat Dam to consumers in Metro Manila.
The fourth tunnel to be funded by the ADB is also seen to address the increasing needs of potable water in Metro Manila, 95 percent of which is supplied by Angat Dam. The three existing tunnels, meanwhile, will undergo rehabilitation and improvement.
At the same time, Angat Dam will be reinforced with a new five-meter concrete dike, with some P1.08-billion funding from Global Power Holdings Corporation, which acquired the plant from National Power Corporation.
The rehabilitation and reinforcement of Angat Dam will undergo three phases, which includes the Main Dam Cross Section, Main Dyke Cross Section at Secondary Dike Section to make sure the dam could withstand a 7.2 magnitude earthquake.