Du Toitskloof represents a happy blend of practical and aesthetic solutions to create a facility that satisfies the needs of all concerned. Roads are built for economic or logistical reasons, but environmental factors also urge one to travel ... especially on routes like the N 1 through Du Toitskloof. This raises the question of how to create access without disturbing the pristine quality that attracts the public, while catering for the usual practical constraints.
An investigation into further phases of the Lesotho Highlands Water Project that could be used to provide additional water. The Lesotho Highlands Water Project (LHWP) is a joint venture between the governments of South Africa and Lesotho. A joint study was carried out by South Africa and Lesotho between 1983 and 1986 in which the feasibility of the LHWP was investigated. The study identified a large number of potential dam sites and tunnel routes for the LHWP, from which a layout with development in four phases was recommended.
Pre-feasibility studies have shown that various transfer schemes are economically viable and technically feasible for supplying water to the Vaal River System. Orvaal Consult (a consortium consisting of Africon, V3 Consulting Engineers, Chunnett Fourie & Partners, Urban-Econ, Van Riet and Louw Landscape Architects and various other specialists such as the CSIR and HSRC) was appointed to evaluate options and to recommend the least-cost solution for the transfer of water from the Orange River in the vicinity of the Gariep Dam to the Vaal River System. This study, called the Orange-Vaal Transfer Scheme (OVTS), was one of the studies in the Vaal Augmentation Planning Study (VAPS). A complication was added to the study in that it also had to take cognizance of the fact that up to 40 m3/s of additional water could possibly be obtained from the Mzimvubu River.