Addi Qenafiz

Addi Qenafiz
Addi Qenafiz
	Addi Qenafiz
Coordinates	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

Dam height: 15.5 metres
Dam crest length: 514 metres
Spillway width: 10 metres

Capacity

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

Designed irrigated area: 60 ha
Actual irrigated area in 2002: 7 ha

Environment

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

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.
Nigussie Haregeweyn, and colleagues (2008). "Sediment yield variability in Northern Ethiopia: A quantitative analysis of its controlling factors". Catena. 75: 65–76. doi:10.1016/j.catena.2008.04.011.

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[joke-1] De Wit, Joke (2003). Stuwmeren in Tigray (Noord-Ethiopië): kenmerken, sedimentatie en sediment-bronnen. Unpub. M.Sc. thesis. Department of Geography, K.U.Leuven.

[2] 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.

[3] Nigussie Haregeweyn, and colleagues (2008). "Sediment yield variability in Northern Ethiopia: A quantitative analysis of its controlling factors". Catena. 75: 65–76. doi:10.1016/j.catena.2008.04.011.