French
DeutschAddi Qenafiz
| Addi Qenafiz | |
|---|---|
 | |
  Addi Qenafiz | |
| Coordinates | 13°15′15″N 39°24′29″E / 13.25411779°N 39.40795418°E |
| Type | Freshwater artificial lake |
| Basin countries | Ethiopia |
| Surface area | 0.1286 km2 (0.0497 sq mi) |
| Water volume | 0.67×106 m3 (540 acre⋅ft) |
| Surface elevation | 2,120 m (6,960 ft) |
| Settlements | Hintalo |
Addi Qenafiz 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]
Dam characteristics
[edit]- Dam height: 15.5 metres
- Dam crest length: 514 metres
- Spillway width: 10 metres
Capacity
[edit]- Original capacity: 670 480 m³
- Dead storage: 60953 m³
- Reservoir area: 12.86 ha
In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 31 years.[1]
Irrigation
[edit]- Designed irrigated area: 60 ha
- Actual irrigated area in 2002: 7 ha
Environment
[edit]The catchment of the reservoir is 14.18 km² large, with a perimeter of 17 km and a length of 5360 metres. The reservoir suffers from rapid siltation.[2] The geology of the catchment is Mekelle Dolerite, Agula Shale, and, at the upper edge, 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]
References
[edit]- ^ a b c 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.