Lesotho Highlands Water Project, Lesotho
Key Data:
Project Type
Water transfer
Client
Kingdom of Lesotho and the Republic of South Africa
Authorities
Lesotho Highlands Development Authority and Trans-Caledon Tunnel Authority
Total Cost
$8bn
Plant Details:
Transfer tunnel between Katse and Mohale
Design and Supervising Consultants
Lahmeyer, Mott Macdonald and Consult 4, including Ninham Shand, VKE Engineers, SRK Consulting and Knight Piesold
Project Timeline:
Phase 1A
1991 to 1998
Phase 1B
1996 to 2004
Phase Two
Feasibility study conducted
Water Transfer
2,000 million m³ of water annually
Key Players:
Phase 1A
Katse Dam and Transfer Tunnel Supervisor
Lesotho Highlands Consultants
Katse Dam Construction Contractors
Impregilo, Bouygues, Hochtief, Stirling, Kier, Concor and Group 5
Supervising Engineers
Ninham Shand, MJ Mountain, WLPU, SRK, Keeve Steyn and VKE, with Coyne and Bellier, Sogreah and Sir Alexandra Gibb and Partners
Contractors for Tunnelling
Balfour Beatty, LTA, Spie Batignolle, Ed Züblin and Campenon Bernard
Muela Hydropower Station
Supervisor
Lahmeyer MacDonald consortium
Electrical and Mechanical Contractors
SDEM, Neyrpic and Deutsche Babcock
Equipment Supplier
Kvaener Boving, Norelec, ABB Calor Emag Schaltanlagen
Phase 1B
Mohale Dam Supervisor
BKS, Melis and Du Plessis, Snowy Mountains Engineering, Stewart Scott, Harza Engineering and Nippon Koei
Contractors
Impregilo, Hochtief and Concor joint venture
Mechanical and Engineering
Concor Engineering and ATB join venture
Matsoku Weir and transfer tunnel
Design and Supervision Consultants
Matsoku Diversion Partnership and Consult 4 and Lescon and FMA joint venture
Construction Contractors
Concor, Hotchtief and Impregilo joint venture
Mechanical and Engineering
Concor Engineering and B&W Electrical
Mohale access roads
Designer
GIBB and BS Bergman
Contractor
LTA and Group 5 joint venture
Phase two
Feasibility study contract
Consult 4 and Senqu Engineering Environment and Development Consultants Joint Venture
Finance
World Bank, African Development Bank, European Development Fund, Development Bank of South Africa, European commercial banks and export credit agencies
