Indonesia's tunnel constructions always take very long time. CNBC Indonesia say Jakarta deep tunnel project is also late.

Indonesia's Ministry of Technology Research, National Innovation Research Agency or BRIN admit that the Jakarta deep tunnel project is still constrained by land acquisition. The anti-flood deep tunnel project that was initiated in 2007 still dragging since then, It is plagued by land acquisition problems, high costs, and all time changing, non-decisive government related to the Jakarta flood.

Whenever it rain heavily, Jakarta streets turn into rivers,

 https://www.cnbcindonesia.com/news/20200107123020-8-128221/proyek-deep-tunnel-terkendala-pembebasan-lahan