Imbagedo

Imbagedo
Imbagedo Show map of Ethiopia Imbagedo Show map of Africa
Coordinates	13°29′N39°40′E / 13.483°N 39.667°E / 13.483; 39.667
Type	Freshwater artificial lake
Basin  countries	Ethiopia
Surface area	0.36 km2 (0.14 sq mi)
Water volume	1.776278×10^6 m3 (1,440.052 acre⋅ft)
Settlements	Kwiha

Imbagedo is a reservoir located in the Inderta 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: 20 metres
• Dam crest length: 328 metres
• Spillway width: 20 metres

Capacity

• Original capacity: 1 776 278 m³
• Dead storage: 360 000 m³
• Reservoir area: 36 ha

In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 24 years. ^[1]

Irrigation

• Designed irrigated area: 80 ha

Environment

The catchment of the reservoir is 12.4 km² large. The reservoir suffers from rapid siltation. ^{[2] [3]} 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. ^[4]

References

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. Vanmaercke, M. and colleagues (2019). "Sediment Yield and Reservoir Siltation in Tigray". Geo-trekking in Ethiopia's Tropical Mountains. GeoGuide. Cham (CH): Springer Nature. pp. 345–357. doi:10.1007/978-3-030-04955-3_23. ISBN   978-3-030-04954-6. S2CID   199112876.
4. 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.