Belesat

Belesat
Belesat
	Belesat
Coordinates	14.19484988°N 39.11569128°E
Type	Freshwater artificial lake
Basin countries	Ethiopia
Surface area	0.074 km2 (0.029 sq mi)
Water volume	0.428×106 m3 (347 acre⋅ft)
Surface elevation	2,040 m (6,690 ft)
Settlements	Feresmay

Belesat is a reservoir located in the Inticho woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1997 by the Relief Society of Tigray.[1]

Dam characteristics

Dam height: 15 metres
Dam crest length: 308 metres
Spillway width: 19 metres

Capacity

Original capacity: 428 028 m³
Dead storage: 60 000 m³
Reservoir area: 7.4 ha

In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 15 years.[1]

Irrigation

Designed irrigated area: 32 ha
Actual irrigated area in 2002: 20 ha

Environment

The catchment of the reservoir is 4.8 km² large, with a perimeter of 9.62 km and a length of 3670 metres. The reservoir suffers from rapid siltation.[2] The lithology of the catchment is Adigrat Sandstone and Enticho Sandstone.[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. 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.

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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. 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.