Era (reservoir)

Era is a reservoir located in the Atsbi Wenberta woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1997 by SAERT.^[1]

Era
Era Show map of Ethiopia Era Show map of Africa
Coordinates	13°41′35″N 39°46′00″E
Type	Freshwater artificial lake
Basin countries	Ethiopia
Surface area	0.37 km2 (0.14 sq mi)
Water volume	1.920000×10^6 m3 (1,556.569 acre⋅ft)
Settlements	Atsbi

Dam characteristics

• Dam height: 16.73 metres
• Spillway width: 10 metres

Capacity

• Original capacity: 1 920 000 m³
• Dead storage: 480 000 m³
• Reservoir area: 37 ha

Irrigation

• Designed irrigated area: 100 ha
• Actual irrigated area in 2002: 95 ha

Environment

The catchment of the reservoir is 16 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.