| Addi Akhor | |
|---|---|
  Addi Akhor | |
| Coordinates | 13°30′N 39°40′E / 13.500°N 39.667°E / 13.500; 39.667 |
| Type | Freshwater artificial lake |
| Basin countries | Ethiopia |
| Surface area | 0.0819 km (0.0316 sq mi) |
| Water volume | 0.510777×10 |
| Settlements | Kwiha |
Addi Akhor is a reservoir located in the Enderta district of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1998 by SAERT.
Dam characteristics
- Dam height: 18 metres (59 ft)
- Dam crest length: 210 metres (690 ft)
- Spillway width: 1.3 metres (4 ft 3 in)
Capacity
- Original capacity: 510,777 m (18,037,900 cu ft)
- Dead storage: 6,008 m (212,200 cu ft)
- Reservoir area: 8.19 ha (20.2 acres)
In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 30 years.
Irrigation
- Designed irrigated area: 30 ha (74 acres)
- Actual irrigated area in 2002: 20 ha (49 acres)
Environment
The catchment of the reservoir is 2.75 km (1.06 sq mi) large. The reservoir suffers from rapid siltation. The lithology of the catchment is Antalo Limestone and Mekelle Dolerite. 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.
References
- ^ De Wit, Joke (2003). Stuwmeren in Tigray (Noord-Ethiopië): kenmerken, sedimentatie en sediment-bronnen. Unpub. M.Sc. thesis. Department of Geography, K.U.Leuven.
- Nigussie Haregeweyn, and colleagues (2006). "Reservoirs in Tigray: characteristics and sediment deposition problems". Land Degradation and Development. 17: 211–230. doi:10.1002/ldr.698. S2CID 129834993.
- Nigussie Haregeweyn, and colleagues (2008). "Sediment yield variability in Northern Ethiopia: A quantitative analysis of its controlling factors". Catena. 75 (1): 65–76. Bibcode:2008Caten..75...65H. doi:10.1016/j.catena.2008.04.011.