This project is part of Maynilad project on the Water Discharge Pipelines from the New Pasay Pumping Station and Reservoir at PAGCOR entertainment complex. The project was to tunnel below NAIA road so that water from the reservoir could be transported to the discharge lines heading to Las Piñas and Cavite. The tunnelling crossed Macapagal Boulevard and bored below NAIA Road extension towards Roxas Boulevard, Parañaque City, using a 1700mm Ø Steel Casing. Because it was rather long trenchless pipe laying, a tunnel boring machine was used. Researching on the site geology was significant. The work done was below the water table and so sump pump was used to keep the work pit dry. The tunnel boring machine deployed was Slurry Shield MJV 1700S. This was specifically suited for the soft and watery ground of the project. The soil at the tunnel face is cut and drawn into the cutting chamber, where it is pumped out as slurry. The whole pipe laying contract package was secured by J.V. Angeles Construction Corp. and the tunnelling portion sub-contracted by MCT. The project was completed in September 2011.

This project is a pipe-jacking work of 2300mm Ø Steel Casing that crossed Taft Ave. in P. Ocampo St. near Vito Cruz LRT Station. This is a part of Maynilad pipe-laying project that will supply water to the Pasay Pumping station. The contract package 1 of was secured by A. A. Alarilla Construction Co., Inc. and the Taft Avenue crossing portion subcontracted to Microtunnelling Const. Tech. Originally the length of the tunnelling was only 33 meters, but because of the underground obstructions, it was extended to 90 meters. The project was completed February 2009. By employing trenchless tunnelling work, the traffic flow along the busy area in Taft Avenue was undisturbed.

The diameter of the installed pipe is 900mm steel casing, 16mm thick. Length of the work is 70m. A 600mm Ø carrier pipe (pipe that will transport the water) will be installed inside steel casing, and the space in between will be grouted. This project is called APM-6 GAPS because this is one of the ‘gaps’ or uncompleted project from the original project APM. The project was secured by Linear Construction Corporation and the pipe-jacking specialty work was subcontracted to Microtunnelling Const. Tech. This was completed on late April 2007.