Dozens of workers are repairing embankments, railings and drainage hatches along both sides of the river, which runs through several central districts.
Pavements are being repaved, railings repainted, and grass and trees planted to improve the riverside landscape.
City leaders have ordered all wards along the river to complete renovations by August 30.
However, the river still suffers from foul-smelling black wastewater discharged directly from residential drains.
To Lich has 24 major and 95 minor sewage outlets, most of which have been sealed to divert waste to the Yen Xa treatment plant. Around 10 outlets continue to discharge untreated wastewater.
Workers are also dredging the riverbed to prepare for water to be channelled from the Red River to create a clean flow through To Lich.
Stretching 14 kilometres, To Lich passes through Lang, Dong Da, Cau Giay, Ba Dinh, Hoang Mai and Thanh Tri wards. For decades, it has been heavily polluted, emitting a stench that has severely affected residents and blighted the city’s image.
Since 2009, Hanoi has attempted multiple revival projects, none meeting expectations. Residents along the riverbanks hope the latest effort will finally bring lasting improvements and restore the long-polluted waterway.
