Addi Akhor

Addi Akhor
Addi Akhor
	Addi Akhor
Coordinates	13°30′N 39°40′E / 13.500°N 39.667°E
Type	Freshwater artificial lake
Basin countries	Ethiopia
Surface area	0.0819 km2 (0.0316 sq mi)
Water volume	0.510777×106 m3 (414.094 acre⋅ft)
Settlements	Kwiha
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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.^[1]

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 m³ (18,037,900 cu ft)
Dead storage: 6,008 m³ (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.^[1]

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 km² (1.06 sq mi) large. The reservoir suffers from rapid siltation.^[2] The lithology of the catchment is Antalo Limestone and Mekelle Dolerite.^[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

^ ^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.

[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. S2CID 129834993.

[3] 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.

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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 km² (0.0316 sq mi)
Water volume	0.510777×10^⁶ m³ (414.094 acre⋅ft)

Settlements	Kwiha