Beko-Abo Multipurpose Project Pre-Feasibility Study
Project Overview
The Beko-Abo Multipurpose Project is a major hydroelectric and water resource development initiative in Ethiopia, conducted by the Ministry of Water and Energy. The pre-feasibility study was completed in November 2010 by a consortium including NORPLAN, NORCONSULT, EDF, and Scott Wilson in association with local partners.
Report Structure
The study is organized into multiple volumes:
- Volume 2 - Project Drawings (this document)
- Volume 3 - Supporting Overview
- Volume 4 - Global Environmental and Socio-economic Assessment
Key Project Components
General Drawings
- Catchment Area and Project Location
- Plan of Reservoir
- Longitudinal Section of Reservoir
- Road Map 2010
- General Arrangement Plan
- Power Station Layout
Civil Project Structures
- Dam and Spillway Layout
- Dam Views and Sections
- Diversion, Current and Combate Sections
- Waterway Sections (Northern and Southern)
- Intake Structure & Gate Chamber
- Powerhouse Cavern Designs
- Outlet Structure
Mechanical and Electrical Equipment
- Principal Single Line Diagram
- Switchyard Layouts (500kV and 400kV)
Transmission Lines
- Transmission Line Routes Overview
- 400kV Beko Abo - Debre Markos (2 maps)
- 500kV Beko Abo - Mandaya (3 maps)
Other Components
- Geology and Ground Conditions
- Construction Scheduling
- Roads and Access
Key Technical Specifications
| Component | Specification |
|---|---|
| Dam Type | RCC (Roller Compacted Concrete) |
| Reservoir Elevation | FSL 1062.0 MASL |
| Spillway Capacity | Design Flood: 18,260 m³/s, PMF: 19,960 m³/s |
| Transmission Voltage | 400kV and 500kV lines |
| Powerhouse | Underground cavern design with multiple levels |
Project Location and Context
The project is located on the Blue Nile River system in Ethiopia, downstream of Lake Tana and Tissisat Falls. The reservoir will be situated between several existing and planned hydroelectric projects including Mandaya Dam and Finchaa River developments.
The transmission line routes connect to major Ethiopian cities including Debre Markos and Mandaya, with potential for international power export given the proximity to Sudan.
Construction Planning
The study includes detailed construction scheduling and road access plans, including:
- Location of internal roads in site areas
- Alternative access roads from Kuch to Abay Bridge
- Alternative access road from Inewind to Bure Road
- Aggregate storage and processing areas
- Temporary and permanent access routes