Mla Water readies P5.3-B aqueduct
Ayala-led Manila Water Co. Inc. is set to start the construction of the NovalichesBalara Aqueduct 4 (NBAQ4) following the signing of the P5.3-billion project aimed at improving the reliability and security of the company’s raw water transmission system.
Manila Water said it already signed the contract with the Metropolitan Waterworks and Sewerage System (MWSS), project consultant Arup, NOVABALA joint venture, and design and build contractors CMC di Ravenna, First Balfour Inc., and Chun Wo Engineering.
The NBAQ4 project, one of the largest water supply infrastructure projects undertaken by the company, will include the construction of a fourth aqueduct from the La Mesa reservoir to the Balara Treatment Plants 1 and 2.
The Metropolitan Waterworks and Sewerage System (MWSS) said the aqueduct project is part of the agency’s water security program under the Duterte administration.
The NBAQ4 project will provide a new aqueduct to enable the sequential temporary service suspension of the existing aqueducts for inspection, assessment and subsequent rehabilitation.
The 7.3-kilometer long and 3.1-meter diameter NBAQ4, one of the first tunnels to be constructed with a tunnel boring machine in the metro, will also be composed of a new intake facility at La Mesa, an underground aqueduct, and an outlet facility at BTP.
It will have a capacity of 1,000 MLD and will be constructed along Commonwealth Avenue in Quezon City.
Upon completion, the project will provide emergency redundancy in the event of a failure in any of the existing aqueducts.
The aqueduct project is targeted to be completed before the end of the administration by 2021.
The three existing aqueducts, built in 1929, 1956 and 1968 are already nearing the service life of 50 years for concrete structures and are in need of assessment and rehabilitation.
Manila Water caters to the East Zone which encompasses parts of Makati, Mandaluyong, Pasig, Pateros, San Juan, Taguig, Marikina, most parts of Quezon City, portions of Manila, as well as several towns in Rizal.