More about the Aveng Mokolo Crocodile River Project

General information


THE MOKOLO Crocodile River Water Augmentation Project (MCWAP) is designed to supplement Eskom’s Medupi Power Station and the anticipated industrial development linked to the massive Waterberg coal field in the Lephalale area of Limpopo. It comprises up to 400 million cubic metres of water per annum, depending on the final extent of the anticipated mining, power generation and petro-chemical industry developments.

The formation of Mokolo Crocodile Consultants (MCC), a joint venture between five consulting engineering firms was established to implement the R15 billion MCWAP on behalf of Trans-Caledon Tunnel Authority (TCTA), which has been mandated by the Department of Water Affairs to implement the project.

Phase 1 at MCWAP involves the construction of water delivery infrastructure between Mokolo Dam and a delivery point between Medupi and Matimba power stations. Construction work started on Phase 1 of the project in September 2011, following the successful completion of the feasibility studies and detail design work.

The R750 million phase currently involves the installation of a 44.5-km-long, 800 mm to 1 100 mm diameter steel pipeline, which will be served by a 4.5-megawatt pump-station at Mokolo Dam. It is expected to supply approximately 30 million m3 of water per annum at a rate of 1.25 m3 per second, following the anticipated completion of construction at the end of 2013.

Project Profile

The project comprises the construction of a 46 km pipeline and a pump station transferring water from the existing Mokolo Dam to supply water to EXXARO Grootegeluk Mine, Eskom’s Matimba Power Station, Lephalale Municipality and to supply the new Medupi Power Station.


The Contractor mobilised to site in September 2011 and physical activities commenced in November 2011 when TCTA gave the right of access to and possession of the priority parts of the site, which includes the rising main from Mokolo dam to Wolvenfontein balancing dams. The land which was critical to commence with construction was acquired timeously and the project is on track. Mokolo Crocodile Consultants (MCC),a Joint Venture between Aurecon, Goba, PD Naidoo and Associates, Vela VKE Consulting Engineers and Worley Parsons is the engineering consultant for Mokolo-Crocodile Water Augmentation Project. Aveng (Africa) Ltd and Umbutho Civil and Electrical cc JV (AUJV) is the construction contractor on the project.

Spect Industrial Products

Spect Industrial is instrumental in applying solvent free epoxy lining repairs to the internal coatings on both the girth weld areas and also has teams holiday testing along the entire length of the pipeline.  Spect Industrial has specialised in the internal lining applications and produces up to 8 completed joints per day.

The materials used for the jointing is as follows:

  • Polyken 955-15 Outer Tape
  • Polyken 942-30 Inner Tape
  • Polyken 939-1000 Mastic Beading
  • Polyken Primer 1027

Data Sheets :  Polyken 939-1000  |  Polyken 942-30  |  Polyken 955-15  |  Polyken 1027