Jakarta’s water authority plans feasibility and engineering studies for a US$441M deep tunnel flood control system for the Indonesian capital.
Outline concepts call for construction of a 17km long tunnel system with an underground reservoir network that could store 30M m3 of water.
Construction of the large diameter tunnel would be split into three sections. Phase one would run from Bukit Duri, Kampung Melayu, Manggarai, Karet sluice gate, Grogol dam, Muara Angke and the west flood canal. Phase two would link Buaran via Pulo Gadung, Cakung and Cilincing to the east flood canal. Phase three would run to the Cengkareng drain in West Jakarta.
Head of the authority, Achmad Lanti, said: “We plan to conduct feasibility studies and finalise the engineering design by the end of the year.”
The Jakarta city government has given a preliminary green light to the scheme and central government approval and financial support is anticipated. The scheme has impetus after at least 80 people died in the disastrous recent floods, which inundated three-quarters of the city.
