Preliminary & Planning Report With Investigation Works, Final Design & Tender Documents for Bassara Dam

Location/River: Bassara gorge / Tawooq Chai River, IRAQ

Employer: Ministry of Water Resources, IRAQ

Description of the Project: 

Location of designed Bassara Dam is on river Tawooq Chai, some 20 km far from Sulaimanyah town in Iraq. The main purpose of 54 milions m3 large Bassara reservoir is to enable regulation of Tawooq Chai for irrigation of 2900 ha of cultivated land. Beside this, construction of the dam will improve river low flows regime. The water head difference which will be formed with the dam will be used for electric power production, so the HPP of 4.8 MW is proposed. Bassara dam is designed as a combination of RCC Dam with
Spillway & Fill Dam with central concrete diaphragm. Appurtenant structures includes diversion tunnel, water intake tower, bottom outlet with penstock & irrigation pipe and HPP.
Location of the Irrigation field is some 11 km downstream of the dam location. Water from the Bassara reservoir to the irrigation field is conveyed through a 1400 mm main pipe. For further water distribution a network of primary and secondary level pipes is designed. The total length of all pipes in the network including the main pipeline is approx. 90 km.

The Services Provided:
Performance of Topographical & Geological Investigation Works and Preparation of Preliminary & Planning Report, Final Design & Tender Documents have been the most essential goals of the Project, including the following specific Consulting Services:
• Preparation on Investigation Works Program & Performance of Investigation Works;
• Determination of General Layout, Optimization and Engineering Design of the Dam, Appurtenant Structures & HPP at Preliminary with Planning Report & Final Design stage;
• Preparation of Hydrological, Topographical & Geological Study at Preliminary & Planning Report stage;
• Implementation of Earthquake Hazard Study at Planning Report stage;
• Preparation of Environmental Impact Assessment Study at Preliminary & Planning Report stage;
• Implementation of Cost Estimate with Construction Time Schedule at Preliminary with Planning Report & Final Design stage;
• Preparation of Economic & Financial Analysis at Preliminary & Planning Report stage;
• Establishment of Tendering Procedure and Rendering Assistance to Client during Tendering Procedure.

Investment cost: 110,600,000. USD