The Kai Tak Nullah (Chinese: 啟德明渠, also known as the Kaitak River or Kai Tak River (啟德河)) is a nullah or watercourse that collects water from the rivers and streams flowing from the hills in northern New Kowloon. It empties into a narrow channel leading into the Kwun Tong Typhoon Shelter. Part of the nullah is covered by roads and other facilities.
The Kai Tak Nullah is about 2.4 km (1.5 mi) in length. It flows from Po Kong Village Road along Choi Hung Road, pass Tung Tau Estate and San Po Kong, into Kai Tak Development Area before discharging into the Victoria Harbour at the Kwun Tong Typhoon Shelter. It has an upstream and a midstream. The nullah is one of the major flood relief drainage channels in the East Kowloon area.[1] The improvement work of Kai Tak Nullah has been overseen by the Civil Engineering and Development Department since March 2012, aiming to turn the nullah into an attractive green river corridor.[2] It was anticipated to be fully completed before 2021.