Filiglig

Filiglig
Filiglig is located in Ethiopia
Filiglig
Filiglig
Coordinates13°14′47″N 39°25′11″E / 13.24641279°N 39.4196826°E / 13.24641279; 39.4196826
TypeFreshwater artificial lake
Basin countriesEthiopia
Surface area0.065 km2 (0.025 sq mi)
Water volume0.296×10^6 m3 (240 acre⋅ft)
Surface elevation2,070 m (6,790 ft)
SettlementsHintalo

Filiglig is a reservoir located in the Hintalo Wajirat 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: 14 metres
  • Dam crest length: 325 metres
  • Spillway width: 15 metres

Capacity

  • Original capacity: 296000 m³
  • Dead storage: 20832 m³
  • Reservoir area: 6.5 ha

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: 20 ha
  • Actual irrigated area in 2002: 3 ha

Environment

The catchment of the reservoir is 7.44 km2 large, with a perimeter of 14.23 km and a length of 5840 metres. The reservoir suffers from rapid siltation.[2][3] The lithology of the catchment is Mekelle Dolerite and Agula Shale.[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.[4]

References

  1. ^ 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.
  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.