Tokwe Mukorsi Dam

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Tokwe Mukosi Dam
Zimbabwe relief location map.jpg
Red pog.svg
Location of Tokwe Mukosi Dam in Zimbabwe
Location Masvingo Province close to Ngundu
Coordinates 21°03′46.25″S30°23′39.99″E / 21.0628472°S 30.3944417°E / -21.0628472; 30.3944417 Coordinates: 21°03′46.25″S30°23′39.99″E / 21.0628472°S 30.3944417°E / -21.0628472; 30.3944417
PurposeWater storage, flood control, irrigation, fisheries, power
Construction began1998
Opening date2016
Construction costUS$200 million
Dam and spillways
Type of dam Embankment, concrete-face rock-fill
Impounds Tokwe River
Height90.3 m (296 ft)
Width (crest)8.5 m (28 ft)
Dam volume1,915,000 m3 (67,600,000 cu ft)
Total capacity1,750×10^6 m3 (1,420,000 acre⋅ft)
Catchment area 7,120 km2 (2,750 sq mi)
Surface area96.4 km2 (37.2 sq mi)
Maximum water depth82.7 m (271 ft)
Commission dateMay 2017
Installed capacity 12 MW (16,000 hp)

The Tokwe Mukosi Dam is a concrete-face rock-fill dam on the Tokwe River, just downstream of its confluence with the Mukorsi River, about 72 kilometres (45 mi) south of Masvingo in Masvingo Province, Zimbabwe. [1] It is 90.3 metres (296 ft) tall and creates a 1,750,000,000 m3 (1,420,000 acre⋅ft) reservoir, the largest inland dam in the country. The associated hydroelectric power station has a 12 megawatts (16,000 hp) installed capacity. [2]

Construction on the dam began in June 1998 but stalled in 2008. Salini Impregilo began to finish the dam in 2011. Heavy flooding in February 2014 caused a partial failure on 4 February, on the downstream face of the dam. [3] [4] By late February the dam had not been fully breached but the unplanned rising reservoir behind the dam caused evacuations upstream. [5] Both upstream and downstream, over 20,000 people were evacuated. [6] Construction of the dam was suspended in June 2014 due to a lack of funding. [7] [8] In May 2016 the government released $35 million to Salini Impregilio to enable the Italian contractor resume construction work that stopped two years ago owing to payment problems. [9] The Dam was eventually completed in December 2016 and commissioned in May 2017. [10]

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  1. "Update:Flood water over Tokwe Mukorsi Dam" (PDF). ReliefWeb. Retrieved 25 February 2014.
  2. "Cheap design linked to problems at Tokwe-Mukosi". Nehanda Radio. 15 February 2014. Retrieved 25 February 2014.
  3. "Water gushes over crumbling dam wall in Zimbabwe". Digital Journal. 9 February 2014. Retrieved 25 February 2014.
  4. "Tokwe - Mukorsi Dam". Salini Impregilo. Retrieved 25 February 2014.
  5. "Update: Tokwe Mukorsi dam in Zimbabwe". Digital Journal. 25 February 2014. Retrieved 25 February 2014.
  6. "In photos: The aftermath of Zimbabwe's Tokwe-Mukorsi dam disaster". Daily Maverick. 14 April 2014. Retrieved 1 January 2015.
  7. "Tokwe-Mukorsi construction suspended". News Day. 26 June 2014. Retrieved 1 January 2015.
  8. "Tokwe Mukosi dam complete". The Zimbabwean. 7 January 2015. Archived from the original on 19 January 2015. Retrieved 17 January 2015.
  9. Tokwe-Mukosi Dam contractor resumes work
  10. "Tokwe-Mukosi dam".{{cite web}}: CS1 maint: url-status (link)