Arjo Dedessa Irrigation Project Feasibility Study

Project Overview

The document presents the feasibility study for the Arjo Dedessa Irrigation Project in Ethiopia, focusing on irrigation and drainage system designs.

Key Components

Component	Description
Administrative Units Map	Shows project area administrative boundaries (AD-F-irr & Oral: /01)
Location Map	Illustrates project location with reservoir, primary canals, and command area (AD-F-irr & Oral: /02)
Soil Map	Details soil types in the command area (AD-F-irr & Oral: /03)
Land Suitability Map	Assesses land suitability for irrigation (AD-F-irr & Oral: /04)
Canal System	Includes primary, secondary, tertiary canals and drainage system layouts

Canal System Details

• Primary Canals: Right Primary Canal (7 sheets), Left Primary Canal (9 sheets)
• Secondary Canals: RS-16, RS-17 longitudinal profiles
• Tertiary Canals: Multiple sections with detailed profiles
• Drainage System: Secondary drain RDS-15, tertiary drains RTD-16-7, RTD-17-3

Technical Specifications

The document includes detailed technical drawings of:

• Typical cross-sections for primary and secondary canals
• Hydraulic particulars (bed width, slope, velocity)
• Elevation details (canal bed level, full supply level, ground level)
• Construction details for different canal types (deep cutting, partial cut/fill)

Key Features

• Command area: Approximately 20,000 hectares
• Reservoir capacity: Designed for irrigation needs
• Road network: Includes all-weather roads and service roads
• Drainage system: Comprehensive network parallel to irrigation canals

Project Partners

Federal Democratic Republic of Ethiopia - Ministry of Water Resources
Water Works Design & Supervision Enterprise
Intercontinental Consultants and Technocrats India Pvt. Ltd.