November 5, 2003
By Bontle Moeng
A R50-MILLION project to install a new sewerage system and upgrade the existing old pipeline in the Leeuwkop area, the major link between central Johannesburg and the northern suburbs, is currently underway.
The Leeuwkop Relief Outfall Sewer Project, initiated by Johannesburg Water, the City's water and sanitation utility, will be completed sometime in November 2004.
In addition to replacing old pipes, the Leeuwkop project will "add capacity to Johannesburg's sewer network", according to JW's Jameel Chand. The Leeuwkop project will service approximately a third of Johannesburg.
"There is a lot of development in the northern parts of the city, like town houses and businesses, and the new sewer line will provide a service to the area and prevent overload," said Chand, who is in charge of JW's communications and marketing.
The project is part of JW's capital investment programme aimed at upgrading and improving the company's infrastructure to ensure a high standard of services.
"The construction of the outfall sewer was necessary to relieve pressure on the strained Johannesburg sewer system. The Northern Outfall Sewer is operating at near full capacity and new infrastructure is needed to ensure that the Johannesburg sewer system does not become overburdened," said Chand.
Work has already started on the installation of the sewer pipe, which is 500 millimetres in diameter and will run for a length of 4,5 kilometres, following a route from Barbeque Agricultural Holdings in the east, along the Jukskei River, crossing the river by a pipe-bridge within the Leeuwkop prison grounds, and connecting to the Diepsloot Tunnel, east of Lonehill.
A 700-metre tunnel, with a depth of eight metres, will also be constructed as part of the project.
Because the tunnel section will pass through a variety of rock types, from highly weathered and closely jointed granite-gneiss to very strong rock material, construction will be by conventional drilling and by blasting, "although pipe-jacking may be offered as an alternative by contractors", JW said in a press release. "The final tunnel profile will be an inverted-U, 1 500 millimetres deep and wide."
For more information about the project contact Johannesburg Water on 011 688 1545.
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