Addi Amharay

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.

Dam characteristics

 * Dam height: 14.7 metres
 * Dam crest length: 128 metres
 * Spillway width: 17 metres

Capacity
In 2001, the life expectancy of the reservoir before it is filled with sediment was estimated at only 33 years.
 * Original capacity: 957,000 m³
 * Dead storage: 175,000 m³
 * Reservoir area: 31.5 ha

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. The lithology of the catchment is Antalo Limestone and Agula shale. 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.