About Project

In May 2010, OMRAB finalized the contract for the procurement and construction of the Bassara Dam and Power Plant Project. The scope of work includes the following components:

– Diversion Tunnels
– Coffer Dams
– RCC (Roller-Compacted Concrete) and Earth-Fill Dam
– Stilling Basin
– Water Intake Tower and Hydropower House
– Penstock, Bottom Outlet, and Irrigation Systems
– Powerhouse, Administration, and Control Buildings
– Access Roads
– Power Generation Equipment

The project features a catchment area of 574 km², with an annual inflow of 252 million m³. The reservoir’s maximum water level is 716.5 meters above sea level, with a normal level of 715.0 meters and a low level of 701.0 meters. The gross storage capacity is 59.7 million m³, while the useful storage capacity is 36.0 million m³, covering a surface area of 3.87 km² at maximum water level.

Irrigation requirements include a maximum water demand of 3.1 m³/s, with an annual average supply of 1.1 m³/s, serving an irrigable area of 2,900 hectares.

The power generation system is designed to produce a maximum output of 4,900 kW and an annual energy production of 13.5 GWh, with a maximum discharge rate of 14 m³/s.

The dam combines RCC and earth-fill construction with a concrete diaphragm. It spans a total catchment area of 600 km², with the RCC dam measuring 198 meters in length and the earth-fill dam measuring 87 meters. The dam reaches a height of 67 meters, with a total RCC and CMC volume of 170,000 m³ and 87,000 m³, respectively. The volume of dam fills and backfills totals 160,000 m³ and 98,000 m³, respectively.

The construction duration for the project is estimated at 1,800 days.