Amibara Irrigation Project II - Summary
Project Overview
The document details Contract Drawings for the Amibara Irrigation Project II, specifically focusing on:
- Contract 2E - On Farm Works (Melka Sadi)
- Contract 2F - On Farm Works (Amibara)
Key Organizations
| Organization | Role | Location |
|---|---|---|
| Awash Valley Development Agency | Project Owner | Addis Ababa, Ethiopia |
| Sir William Halcrow & Partners | Consulting Engineers | Swindon, England |
Project Components
Main Structures
- Melka Sadi Weir and Headworks
- Primary and Secondary Canals
- Drainage systems (Primary and Secondary Drains)
- Eastern and Western Dykes
- Road sections and layouts
- Airstrips
Detailed Structures
- Canal check structures and drops
- Rejection spillways
- Culverts under roads and livestock corridors
- Bridges
- On-farm structures and channel details
Contract Drawings
The document contains numerous contract drawings covering:
- General arrangement of project area
- Longitudinal sections of canals and drains
- Cross sections of various structures
- Typical layouts for on-farm works
- Structural details and reinforcement
Key Technical Specifications
Abbreviations Used: PCO (Primary Canal Offtake), PCD (Primary Canal Drop), SCD (Secondary Canal Drop), FSL (Full Supply Level), FFL (Full Flow Level), OGL (Original Ground Level)
Important Notes:
- All levels are in meters above Blue Nile Datum
- All dimensions are in millimeters unless otherwise specified
- Concrete edges to have 40mm fillets and chamfers unless indicated otherwise
- Embankment tops and berm surfaces to be graded to a cross fall of 1:10 unless shown otherwise
Project Timeline
Contract 2F (Amibara) Tender Programme
Divided into 4 sections with completion targets:
- Section 1: 65 weeks (31% of total area)
- Section 2: 117 weeks (23% of total area)
- Section 3: 169 weeks (34% of total area)
- Section 4: 195 weeks (12% of total area)
Contract 2E (Melka-Sadi) Tender Programme
Also divided into 4 sections:
- Section 1: 65 weeks (24% of total area)
- Section 2: 117 weeks (30% of total area)
- Section 3: 169 weeks (32% of total area)
- Section 4: 192 weeks (14% of total area)
Location Details
The project is located in the Awash Valley region of Ethiopia, with key areas including:
- Amibara State Farm I
- Melka-Sadi State Farm I
- AVDA Settlement Area
Note: The document contains numerous technical drawings and specifications that are not fully represented in this summary. The complete document should be consulted for detailed engineering information.