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Mohale Dam

Mohale, Lesotho

Mohale Dam supports ,the Katse Dam ,with water flow and maintains the level.

Mohale Dam is a concrete faced rock-fill dam in Lesotho. It is the second dam, under Phase 1B of the series of dams of the proposed Lesotho Highlands Water Project (LHWP), which will eventually include five large dams in remote rural areas of Lesotho and South Africa. The project has been built at a cost of US$1.5 billion.

The Mohale Dam was awarded the 2005 Fulton Awards by the Concrete Society of South Africa as having the "Best Construction Engineering Project and Best Construction Technique.The dam is built across the Senqunyane River below its confluence with the western tributary, the Likalaneng River. Investigation of the dam site in the "Highlands of Lesotho" has revealed "rounded, steep sided valleys" where the soil cover is thin and basaltic lava is the dominant formation.The dam site has been identified with two geological features of faults which needed treatment measures. The dam is located 100 kilometres (62 mi) to the east of Maseru, which is the capital of Lesotho. The dam drains a catchment area of 938 square kilometres (362 sq mi) over a river length of 60 kilometres (37 mi) with an elevation variation of 1,050 metres (3,440 ft)

The importance of the large water resources potential of the country, one of the various natural resources of the land-locked country. Subsequently, Director of Public Works, requested an engineer to examine the potential of the project as a possible means to supplement the water supply needs in South African gold mines.

The Lesotho Highlands Water Project (LHWP) was established, with the objective of supplying water to the Gauteng region of South Africa and for hydroelectric power to meet the needs of Lesotho. A treaty signed between the government of Lesotho and South Africa gave the green light for the project, and the team was set up to implement the project.[11][12] The treaty is limited to Phases IA and IB only.[13] The Trans-Caledon Tunnel Authority (TCTA), vested with the operation and maintenance aspects of the project is guided by the larger establishment of the Lesotho Highlands Development Authority (LHDA).The project envisages diverting water in the highlands of the country through three dams; two under Phase I (PhaseI A -Katse Dam and Phase II - Mohale Dam) and the Polihali Dam under Phase II. Construction of the Phase I dams were completed in 2003 and formally commissioned in 2004.

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