The project includes Engineering, supply, installation, operation and maintenance of cofferdam, dewatering and shoring for the construction of pumping structure in dry, Earthworks such as excavation, disposal and backfilling, Construction of bottom slab, internal and outer walls, top slab and other concrete structures, Dismantle of dewatering and shoring facilities, Foundations for overhead cranes, Supply and installation of steel access platform and Removal of cofferdam.