Maynilad to shoulder some costs on Angat-Umiray transbasin tunnel rehab
West Zone concessionaire Maynilad Water Services, Inc. (Maynilad) said it is putting in P375 million for the P749-million project to rehabilitate one of Metropolitan Waterworks and Sewerage System’s (MWSS) common purpose facilities, the Angat-Umiray transbasin tunnel in General Nakar, Quezon Province.
This 13.4-kilometer transbasin tunnel, which is used to convey raw water from the Umiray River to Angat River, is an important part of the water supply system of Metro Manila and nearby provinces. It serves 90 percent of the population or about 16 million people.
Among the rehabilitation works and upgrades that will be implemented is the retrofitting of intake/diversionary structures to withstand the effects of inclement weather such as severe flooding.
This MWSS project will also add new features to the transbasin tunnel for better resiliency, such as additional slope protection, revetment walls, and steel sheet piles along the weir.
Targeted for completion in the fourth quarter of 2018, the rehabilitation project will help to secure the water supply of Metro Manila residents in the face of supply uncertainties brought on by climate change.