Addi Gela
Reservoir in Ethiopia
From Wikipedia, the free encyclopedia
Addi Gela is a reservoir located in the Hintalo Wajirat woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1998 by SAERT.[1]
| Addi Gela | |
|---|---|
| |
  Addi Gela | |
| Coordinates | 13.12925976°N 39.50988014°E |
| Type | Freshwater artificial lake |
| Basin countries | Ethiopia |
| Surface area | 0.185 km2 (0.071 sq mi) |
| Water volume | 1.25×106 m3 (1,010 acre⋅ft) |
| Surface elevation | 2,040 m (6,690 ft) |
| Settlements | Hiwane |
Dam characteristics
- Dam height: 22 metres
- Dam crest length: 424 metres
- Spillway width: 14 metres
Capacity
- Original capacity: 1 250 000 m3
- Dead storage: 62 500 m3
- Reservoir area: 18.5 ha
In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 40 years.[1]
Irrigation
- Designed irrigated area: 100 ha
- Actual irrigated area in 2002: 6 ha
Environment
The catchment of the reservoir is 8.19 km2 large, with a perimeter of 13.43 km and a length of 5640 metres. The reservoir suffers from rapid siltation.[2] The lithology of the catchment is Agula Shale, Mekelle Dolerite, and sandstone of the Amba Aradam Formation.[1] Part of the water that could be used for irrigation is lost through seepage; the positive side-effect is that this contributes to groundwater recharge.[3]