Amibara Irrigation Project II - Summary
Project Overview
Project Name: Amibara Irrigation Project II
Location: Awash Valley, Ethiopia
Implementing Agency: Awash Valley Development Agency (AVDA)
Consulting Engineer: Sir William Halcrow & Partners (UK)
Contract Drawings: Reduced size versions of original contract drawings
Contract Components
- Contract 2E: On-Farm Works - Melka Sadi
- Contract 2F: On-Farm Works - Amibara
Other related contracts mentioned: 2A, 2B, 2C, 2D
Project Components
| Component | Description |
|---|---|
| Weir and Headworks | Melka Sadi Weir and associated headworks |
| Canals | Primary, secondary and tertiary canals with associated structures |
| Drains | Primary and secondary drainage systems |
| Structures | Various hydraulic structures including drops, checks, spillways, culverts |
| Roads | Access tracks, link roads, and service roads |
| Dykes | Eastern and Western dykes for flood protection |
Key Drawings and Plans
- Project Area Layout (MSA 1-2)
- General Arrangement of Project Area (MSA 5-6)
- Melka Sadi Weir and Headworks drawings (MSA 6-11)
- Canal alignments and longitudinal sections
- Drain sections and layouts
- Road sections and layouts
- Typical On-Farm Layout and Channel Details (MSA 41)
- Structure details (drops, checks, spillways, culverts)
Implementation Schedule
Contract 2F (Amibara) - 4 Sections
- Section 1 (31% area): 65 weeks for land clearance, 117 weeks for land leveling, canals, drains, tracks, and structures
- Section 2 (23% area): 169 weeks total duration
- Section 3 (34% area): 169 weeks total duration
- Section 4 (12% area): 195 weeks total duration
Contract 2E (Melka-Sadi) - 4 Sections
- Section 1 (24% area): 65 weeks initial work, 117 weeks total
- Section 2 (30% area): 117 weeks total duration
- Section 3 (32% area): 169 weeks total duration
- Section 4 (14% area): 192 weeks total duration
Technical Specifications
Level Datum: All levels in metres above Blue Nile Datum
Dimensions: All dimensions in millimeters unless otherwise specified
Concrete: 40mm fillets and chamfers unless otherwise indicated
Embankments: 1:30 cross fall unless otherwise shown
Abbreviations
| PO | Primary Canal Offtake |
| PCD | Primary Canal Check/Drop |
| SCD | Secondary Canal Drop |
| FSL | Full Supply Level |
| RC | Reinforced Concrete |
Project Location
The project is located in the Awash Valley region of Ethiopia, specifically covering areas of:
- Amibara State Farm I
- Melka-Sadi State Farm
- AVDA Settlement Area
The irrigation system draws water from the Awash River.