The Roseires Dam (Arabic: خزان الروصيرص) is a dam on the Blue NileatAd Damazin, just upstream of the town of Er Roseires, in Sudan. It consists of a concrete buttress dam 1 km wide with a maximum height of 68 m, and an earth dam on either side. The earth dam on the eastern bank is 4 km long, and that on the western bank is 8.5 km long. The reservoir has a surface area of about 290 km2.
| Roseires Dam | |
|---|---|
 | |
| Location | Ad Damazin, Sudan |
| Coordinates | 11°47′53″N 34°23′15″E / 11.79806°N 34.38750°E / 11.79806; 34.38750 |
| Construction began | 1961 |
| Opening date | 1966 |
| Dam and spillways | |
| Height | 78 m (256 ft) |
| Length | 24,410 m (80,090 ft) |
| Reservoir | |
| Total capacity | 7.4 km3 (5,999,278 acre⋅ft) |
| Surface area | 29,000 ha (71,661 acres) |
| Power Station | |
| Installed capacity | 1800 MW[1] |
The dam was completed in 1966, initially for irrigation purposes. A power generation plant, with a maximum capacity of 280 megawatts, was added in 1971.[2][3]
Extension Project
The original maximum height of the dam was 68 m, which increased to 78 m in 2013 and the dam is now 25 km long. The dam contains five 3 m x 5 m low level sluice gates designed to pass floods and sluice sediment. The dam contains a gated ogre spillway with a discharge capacity of 694 m3/s. In addition, the dam was designed with five low level outlets with a discharge capacity of 5,208 m3/s to pass floods and sluice sediment through the reservoir.[4]
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