Addi Amharay Explained
| Addi Amharay |
| Coords: | 13.405°N 39.5733°W |
| Type: | Reservoir |
| Basin Countries: | Ethiopia |
| Area: | 0.315km2 |
| Volume: | 0.957e6m3 |
| Elevation: | 2320m (7,610feet) |
| Cities: | Kwiha |
| Pushpin Map: | Ethiopia |
| Pushpin Label Position: | right |
Addi Amharay 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.[1]
Dam characteristics
- Dam height: 14.7 metres
- Dam crest length: 128 metres
- Spillway width: 17 metres
Capacity
- Original capacity: 957,000 m³
- Dead storage: 175,000 m³
- Reservoir area: 31.5 ha
In 2001, the life expectancy of the reservoir before it is filled with sediment was estimated at only 33 years.[1]
Irrigation
- Designed irrigated area: 60 ha
- Actual irrigated area in 2001: 5 ha
Environment
The catchment of the reservoir is 4.92 km2, with a perimeter of 9.62 km and a length of 3560 metres. The reservoir suffers from rapid siltation.[2] [3] The lithology of the catchment is Antalo Limestone 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]
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.
- Book: Vanmaercke. M. and colleagues . Geo-trekking in Ethiopia's Tropical Mountains . Sediment Yield and Reservoir Siltation in Tigray . 2019 . Springer Nature . Cham (CH) . 345–357. 10.1007/978-3-030-04955-3_23 . GeoGuide . 978-3-030-04954-6 . 199112876 .
- 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 .
- 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 .
