RIVER STRUCTURE RESEARCH CLUSTER Ethiopia Cairo, June 14, 2004

1
RIVER STRUCTURE RESEARCH CLUSTER
(Ethiopia)Cairo, June 14, 2004
2
Objectives of the Research
General objective of the cluster To improve the
ability of water professionals and practitioners
to design and implement river structure in a
sustainable and friendly environmental manner

3
Specific ObjectivesMicro-dam

• 1. To inventories existing micro-dam in Egypt,
  Ethiopia, the Sudan and Uganda.
• 2. To assess the performance of the inventoried
  micro dam based on documentation available and
  limited field visit.

4
Specific objectives Micro-dam research

• 3. To prioritize important research areas
  (significant problems encountered in the three
  countries) and research topics to be taken
  forward in second phase of the project
• 4. To draft a guidelines for assessment of the
  performances of the micro-dams.

5
Specific objectivesDiversion structures

• 1. To systematically compile and build a
  database of existing both traditional and modern
  diversion systems.
• 2. To review critically the existing design
  criteria and to identify the limitations in these
  criteria.

6
Specific objectivesDiversion structures

• 3. To suggest remedial measures in a form of
  design and operation guidelines or procedures to
  improve the performance of existing conventional
  diversion systems and suggest the use of
  alternative designs.

7
Achievements

• Establishment of a data base of the micro-dam
  and diversion structure and identification of the
  main problems related to design and operation.

8
Achievements cont.

• Fifty eight micro-dam inventoried in Sudan and
  preliminary analysis of the data showed the
  following major problems are identified
• Siltation problem
• - Clogging of gates
• Spillway collapse
• Seepage below dams
• Change of the wadi-course (wrong intakes)
• Operation and maintenance micro-dam Design
  criteria

9
Achievements cont.

• Two hundred fifty micro-dam inventoried in Uganda
  and preliminary analysis of the data showed the
  following major problems are identified
• Siltation problem
• - Clogging of gates
• Spillway collapse
• Seepage below dams
• Operation and maintenance micro-dam Design
  criteria

10
Achievement cont.

• A draft preliminary guideline for performance
  assessment of micro-dam is prepared

11
Achievement cont.Diversion structures

• Inventory of existing diversion systems
• 84 schemes from Northern, Central, and South
  Ethiopia.
• About 59 diversion HP and 95 diversions WS are
  identified in DR Congo
• In Egypt, 21 schemes are identified
• Database development
• Relational database and a regional database in
  GIS-Arc

12
Achievement cont.Diversion structures

• literature review (state-of-the-art) on design
  and operation of diversion systems
• Preliminary data analysis
• Based on the data collected from 33 diversions
  structures in Ethiopia.
• Investigation of applying physical model studies
  by way of examples from two case studies in
  Egypt.

13
Achievement cont.Diversion structures

• literature review (state-of-the-art) on design
  and operation of diversion systems
• Preliminary data analysis
• Based on the data collected from 33 diversions
  structures in Ethiopia.
• Investigation of applying physical model studies
  by way of examples from two case studies in
  Egypt.

14
Lessons Learned

• The need for
• Effective reporting mechanism
• Organizing specific training activities
• Regular face to face meetings (6 months)
• Improvement of communication infrastructure
• Adequate financial support

15
Consolidation

• To further the existing research on solving
  specific problems relevant to each member
  countries of the River Structure Cluster as
  identified in the first phase of the project such
  as micro-dam sedimentation, seepage, geotechnique
  problems,
• Adaptation of techniques for bottom intake
  structure design in mountainous region ,
  Appropriate sediment control devices at intake
  structures

16
Integration

• The role of micro-dam in an improved water
  management
• The role of watershed in sustainable utilization
  of micro-dam reservoirs
• The role of GIS in micro-dam site selection, soil
  erosion estimation, performance evaluation,
  establishing database.
• The effect of Watershed management and river
  morphology on the design of diversion structures

17
Cross-cutting issues

• Assessment of the vulnerability of water supply
  (availability) due to climatic change and climate
  variability
• Adaptive water management measures
• Adaptive structural and non-structural measures

18
River Structures Cluster

• Micro-dam research group members
• Dr. Kamal Eldin Bashar - Sudan
• Mr. Michael Kizaa Uganda
• Dr. Mohammed Ahmed Soliman - Egypt
• Dr. Admasu Gebeyehu Ethiopia
• Dr. Bayou Chane Ethiopia
• Mr. Michael Abebe - Ethiopia
• Dr. Semu Ayalew - Ethiopia
• Dr. Yilma Seleshi - Research Coordinator

19
River Structures Cluster
Diversion Structures research group members Dr.
Muna M. Omar Sudan Mr. Sylvian Kalombo DR
Congo Mr. Abdel Azim Egypt Mr. Africa
Mulumar Ethiopia Mr. Adane Abebe Ethiopia Mr.
Asfaw Afera Ethiopia Dr Zelalem
Hailu Ethiopia Dr. Dereje Hailu, coordinator,
Ethiopia Prof. Petru Boeriu, Scientific Advisor,
IHE

20
Thank you for listening
Thank you for listening