Gereb Segen (Hintalo) Explained
Gereb Segen |
Coords: | 13.2552°N 39.495°W |
Type: | Freshwater artificial lake |
Basin Countries: | Ethiopia |
Area: | 0.117km2 |
Volume: | 0.3374e6m3 |
Elevation: | 2090m (6,860feet) |
Pushpin Map: | Ethiopia |
Pushpin Label Position: | right |
Cities: | Hintalo |
Gereb Segen 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 2000 by SAERT.[1]
Dam characteristics
- Dam height: 14.86 metres
- Dam crest length: 473 metres
- Spillway width: 8 metres
Capacity
- Original capacity: 337408 m³
- Dead storage: 22400 m³
- Reservoir area: 11.7 ha
In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 25 years.[1]
Irrigation
- Designed irrigated area: 24 ha
- Actual irrigated area in 2002: zero ha
Environment
The catchment of the reservoir is 3.53 km2 large, with a perimeter of 11.66 km and a length of 5200 metres. The reservoir suffers from rapid siltation.[2] [3] The lithology of the catchment is 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]
Homonymous places
There is a (much larger) dam with the same name, some 20 km to the northwest: Gereb Segen (May Gabat)
Notes and References
- Book: De Wit . Joke . Stuwmeren in Tigray (Noord-Ethiopië): kenmerken, sedimentatie en sediment-bronnen. Unpub. M.Sc. thesis . 2003 . Department of Geography, K.U.Leuven.
- Nigussie Haregeweyn . and colleagues . Reservoirs in Tigray: characteristics and sediment deposition problems . Land Degradation and Development . 2006 . 17 . 211–230 . 10.1002/ldr.698 . 129834993 . free .
- Book: Vanmaercke. M. and colleagues . Geo-trekking in Ethiopia's Tropical Mountains . Sediment Yield and Reservoir Siltation in Tigray . GeoGuide . 2019 . Springer Nature . Cham (CH) . 345–357. 10.1007/978-3-030-04955-3_23 . 978-3-030-04954-6 . 199112876 . https://link.springer.com/chapter/10.1007/978-3-030-04955-3_23.
- Nigussie Haregeweyn . and colleagues . Sediment yield variability in Northern Ethiopia: A quantitative analysis of its controlling factors . Catena . 2008 . 75 . 1 . 65–76 . 10.1016/j.catena.2008.04.011 . 2008Caten..75...65H .