Yeywa Dam

Yeywa Hydropower Station(ရဲရွာရေအားလျှပ်စစ်ဓာတ်အားပေးစက်ရုံ)
Location of Yeywa Hydropower Station(ရဲရွာရေအားလျှပ်စစ်ဓာတ်အားပေးစက်ရုံ) in Burma
Official name	Yeywa Hydropower Station,Burmese: ရဲရွာရေအားလျှပ်စစ်ဓာတ်အားပေးစက်ရုံ
Location	Mandalay Region, Kyaukse District Kyaukse Township,near Yeyaman village, Myanmar (52 km or 32 mi from Mandalay)
Coordinates	21°40′22″N 96°28′25″E / 21.67278°N 96.47361°E / 21.67278; 96.47361Coordinates: 21°40′22″N 96°28′25″E / 21.67278°N 96.47361°E / 21.67278; 96.47361
Construction began	2001-2002
Opening date	No(1)...February 18, 2010 (2010-02-18) No(2)...August 7, 2010 (2010-08-07) No(3)...June 16, 2010 (2010-18-16) No(4)...December 15, 2010 (2010-12-15)
Construction cost	US$700 million Designed by Colenco Power Engineering Ltd. (Switzerland)
Owner(s)	Department of Hydropower, Ministry of Electricity and Energy (Myanmar)
Dam and spillways
Type of dam	Gravity, roller-compacted concrete
Impounds	Myitnge River, a tributary of the Ayeyarwady River
Height	134 m (440 ft)
Length	690 m (2,260 ft)
Spillway type	ungated spillway 157 m (515 ft) crest width 136 m (446 ft) net width
Spillway capacity	design flood: 6,600 m3 (5.4 acre·ft)/s
Reservoir
Total capacity	2.6×109 m3 (9.82 Tmcft) gross storage 1.6×109 m3 (56.5 Tmcft) active storage
Catchment area	10,890 sq mi (28,200 km2)
Surface area	14,580 acres (59.0 km2)
Maximum water depth	>180 m (590.6 ft)
Power Station
Operator(s)	Myanmar Electric Power Enterprise
Commission date	2010
Turbines	4 x 197.5 MW (264,900 hp) Francis-type
Installed capacity	790 MW (1,060,000 hp)
Annual generation	3,550 GWh (12,800 TJ)
Website Yeywa Dam

External images

Earlier works at Yeywa showing overtopping of Stage 1 and 2 (July 2006), photo

Earlier works at Yeywa before completion of integrated cofferdam (April 2007), photo

Yeywa RCC dam under construction (January 2008), photo

Yeywa Hydro Power Project, video 6:03

No(1)...February 18, 2010 (2010-02-18) No(2)...August 7, 2010 (2010-08-07) No(3)...June 16, 2010 (2010-18-16)

The Yeywa Hydropower Station (Burmese: ရဲရွာရေအားလျှပ်စစ်ဓာတ်အားပေးစက်ရုံ), located on the Myitnge River, 52 kilometres (32 mi) southeast of Mandalay city, at Yeywa village in Kyaukse Township, Mandalay Region in central Myanmar, is the country's first roller-compacted concrete (RCC) dam, and the site of a 790-megawatt (1,060,000 hp) hydroelectric power plant, the largest in the country.

The plant feasibility study was done in 1999. In May 2001, agreement of consulting service between MEPE and COLENCO Power Engineering, Ltd. had signed. In 2003 agreement part 2 for Detail Design, preparation of tender documents and guidance services for construction supervision was signed. The river diversion was completed on December 12, 2004 and RCC placement began on February 8, 2006. The Burmese government announced plans for the Yeywa Dam in late 2001. In 2004, Burma’s Ministry of Electric Power (MEPE) signed a Memorandum of understanding with a consortium of Chinese companies created by China International Trust & Investment Co. (CITIC) and Sinohydro Corporation for implementation of the project. On September 2, 2005, a ceremony to mark the signing of contract between the Hydroelectric Power Department under the Ministry of Electric Power and the China National Heavy Machinery Corporation (CHMC) for the Yeywa Hydroelectric Power Project was held in Yangon [Rangoon], Site work began in 2004 and all four generators were commissioned in 2010. The project was completed in November 2011.