Sector focus
  The group’s capabilities have been refined to deliver comprehensive infrastructure solutions in sectors with high potential. The next few spreads outline the group’s capabilities in its target sectors.

Water

2008 2009 2010 2011 2012
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Berg River dam – South Africa

65 metres high, 990 metres long concrete faced rock fill dam near Franschhoek to augment water supply to Cape Town.

Vresap pipeline – South Africa

Supply and installation of 126 kilometres of pipeline as a water supply system for Sasol between the Vaal dam and Secunda.

Olifantspoort water treatment works – South Africa

Extension of existing water treatment works for Polokwane to increase capacity by 20 megalitres per day.

BG3 pipeline – South Africa

Group Five Pipe was awarded Rand Water’s R124 million BG3 pipeline in 2008. It completed the manufacture, coating and lining of the entire pipeline. The pipes were the largest pipes with the thinnest walls ever to have been manufactured by the group, with new coating and lining technology used.

  Spring Grove dam – South Africa

The Spring Grove dam in KwaZulu-Natal is being constructed by Group Five Civil Engineering and Coastal in joint venture with Pandev, one of the group’s long-standing enterprise development partners. The contract is on track for completion in 2013.


Key competencies

arrow Multi-disciplinary constructor of bulk water transport, treatment and storage systems
arrow Engineer, procure and construct (EPC) delivery of bulk water systems
arrow Design and manufacture of large bore spiral wound water pipes
arrow Supply of construction steel
arrow Supply of fibre cement pipe systems

Key differentiators

Beige arrow More than 35 years’ track record of delivery in water and marine civils sector, which includes some of the largest contracts in the SADC* region
Beige arrow Dedicated pipe manufacture
Beige arrow Specialist experience in building pipelines and water treatment faci

* Southern African Development Community.

  CASE STUDY
   
  Sewage pump station relocation – KwaZulu-Natal

    Includes under-sea pump station shaft    
Due to the recent upgrading of the Durban Point Precinct close to the Durban Harbour, one of the municipality’s sewage pump stations had to be upgraded and relocated closer to the harbour. Group Five Civil Engineering and Coastal teamed up for this contract.

The contract also involves the construction of a 1,2 metre diameter concrete pipe micro tunnel of 220 metres. Micro tunnelling over such a distance is a specialist task. In this case the pipe was jacked horizontally five metres below ground level from the existing overflow chamber to the relocated pump station. This allowed the installation of the pipe tunnel without the need for excavation or disruption to traffic and existing services.

The new pump station vertical shaft is 12 metres below sea level. This necessitated dewatering of the shaft before construction could start. The construction of the diaphragm walls and concrete plug required that approximately 2 300 m3 of concrete had to be poured under water.

It is an extremely difficult and technical contract as the construction is carried out nine metres below sea level. The site is also very confined. Managing to operate in tight spaces and environmental and safety precautions are therefore key focus areas. Pleasingly, since starting the contract the group has had no environmental incidents and no lost-time injuries.

Water-related contracts are an important and growing sector in the group’s strategy.

This contract demonstrates the group’s ability to execute contract works in confined public areas safely and environmentally responsibly.