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  • 21 Aug, 2019

  • By, Wikipedia

Arato
Arato is a reservoir located in the Inderta woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1997 by SAERT.

Dam characteristics

  • Dam height: 20 metres
  • Dam crest length: 443 metres
  • Spillway width: 20 metres

Capacity

  • Original capacity: 2 590 000 m³
  • Dead storage: 647 698 m³
  • Reservoir area: 40 ha

Irrigation

  • Designed irrigated area: 120 ha
  • Actual irrigated area in 2002: 27 ha

Environment

The catchment of the reservoir is 12 square kilometres (4.6 sq mi) large, with a perimeter of 16 km (9.9 mi) and a length of 4,950 m (16,240 ft). The reservoir suffers from rapid siltation. The lithology of the catchment is Antalo Limestone and Mekelle Dolerite. 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.

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. ^ An integrated approach for detection and delineation of leakage path from Micro-Dam Reservoir (MDR): a case study from Arato MDR, Northern Ethiopia https://rd.springer.com/article/10.1007/s10064-015-0750-9
  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.
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