Gereb Awso

Gereb Awso is a reservoir located in the Inderta woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1998 by SAERT.^[1]

Gereb Awso
Gereb Awso
Coordinates	13.4296493°N 39.55336882°E / 13.4296493; 39.55336882
Type	Freshwater artificial lake
Basin countries	Ethiopia
Surface area	0.0212 km2 (0.0082 sq mi)
Water volume	0.119×10^6 m3 (96 acre⋅ft)
Surface elevation	2,290 m (7,510 ft)
Settlements	Kwiha

Dam characteristics

• Dam height: 10.5 metres
• Dam crest length: 196 metres
• Spillway width: 3 metres

Capacity

• Original capacity: 118944 m³
• Dead storage: 3944 m³
• Reservoir area: 2.12 ha

Irrigation

• Designed irrigated area: 9 ha
• Actual irrigated area in 2002: 5 ha

Environment

The catchment of the reservoir is 1.21 km² large, with a perimeter of 4.62 km and a length of 1780 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]