TERMS OF REFERENCE
Dam Engineer
Project: Water Resources Developmnt Project No of Jobs: One (01) Duty Station: Tawila, North Darfur Duration: 4 months with possibility of extension Starting Date: ASAP Closing Date:
Overview of CTG Global CTG Global is a Personnel Management Service Company specialised in Recruitment, Management Consultancy, and Human Resources in countries experiencing or emerging from armed conflict, natural disasters, or acute social and economic crisis worldwide. CTG Global provides tailored personnel management support enabling a growing number of public and private sector agencies and individuals to achieve their objectives in complex and challenging environments. CTG Global clients currently comprise UN agencies, non-government organizations (NGOs), and different corporate organisations such as security companies.
Overview of the Position The Dam Engineer will be required to undertake extensive field assessment, associated survey work and detailed design in order to review the current condition of Tawila earth fill dam, the spillways and catchment and to subsequently propose, design and cost various options for the future rehabilitation of the dam and spillways.
The project is funded through the USAID “Diminishing Conflict through Early Recovery Water Supply Program” (DCERWSP) and implemented by our client.
Project location: near Tawila township, 70km SW of Al Fasher, North Darfur, Republic of Sudan.
Description: Tawila dam is an earth fill dam 1800m long with original crest height 2.5m and quoted design capacity 300,000m3. A 40m long breach failure on the crest has occurred adjacent to one of the two spillways. The exact cause of the failure is unknown. Extensive siltation of the reservoir area has occurred leading to a significant decrease in capacity.
The ultimate purpose of the assessment & design work is to enable our client to undertake the necessary repair works using either an international or a local civil engineering contractor.
The purpose of this assignment is to undertake the prerequisite assessment & design work which will allow our client, the Government State Water Corporation and USAID to jointly decide on the feasibility and scope of the repair works to be undertaken.
General Functions The Dam Engineer will be expected to make frequent visits to the dam site during the course of this assignment. The security situation is currently stable, but this may change at any time. Secure accommodation is available at the UNAMID compound in Tawila.
Assessment activities will include: • general survey of catchment hydrology, general review of land usage, general review of climatic factors influencing the project area • assessment of catchment runoff characteristics including erosion & sediment transport & siltation risk • calculation of design discharge for appropriate return period • geotechnical assessment of the integrity of the earth dam structure. Techniques may include, (but may not be confined to) drilling cores along dam crest; in-situ, field and laboratory testing and analysis of materials • hydrological assessment of seepage flows through and under the dam structure and associated risks by visual means • assessment of structural integrity of existing spillway structures, including review of foundations, design flow capacity • review of causes of past failure (crest breach, seepage, spillway or other) • estimation of influent sediment load & associated design life of reservoir
Depending on the outcome of the assessment and associated decisions regarding the scope of the repair works, the employment period of the Dam Engineer may be extended beyond the initial 4 month period in order to include supervision of the repair works.
Monitoring and Progress Controls The Design Engineer will report directly to the Project Manager. S/he is responsible for timely delivery of high quality engineering design / documentation in compliance with all relevant design codes and standards and management of subordinate technical personnel as assigned
Final Product Completion of project deliverables on time in accordance with The Employment Contract and as described in a mutually agreed Schedule/Work Plan prior to commencement of the assignment; also in accordance with our client’s Policies, Rules and Procedures.
STAGE 1: A concise and complete design report to include the following: 1) narrative report which describes and details the method and conclusions of the assessment activities listed in Section 2 above. 2) review of options for rehabilitation i.e: a) simple repair of breach & spillway b) provision of additional spillway capacity c) de-silting of reservoir d) other options: e.g. raising of crest height 3) Environmental Risk Assessment (based on prepared data from UNOPS) 4) Construction Risk Assessment (based on prepared data from UNOPS) 5) Narrative report and outline cost estimates.
STAGE 2: Final detailed design of preferred option 1) Design narrative & calculations 2) Comprehensive annotated photographic records 3) Construction drawings, cross-sections, maps, plans, annotated sketches to fully describe the scope of works 4) Bill of Quantities & detailed line item costing 5) Specification 6) Schedule
- The forgoing are listed for general guidance only; specific requirements and scope may change as the work progresses at the direction of the Project Manager
- The Dam Engineer shall have free and full access to our client’s field office and full technical co-operation from its technical staff and the Project Manager. This includes full access to all available relevant assessment, engineering, climatic & hydrological data; costing data; local advice & logistics support.
Essential Experience Education • Bachelor’s Degree in Civil Engineering
Work Experience • Minimum 8 years of relevant Civil Engineering experience • Minimum of 4 years design & construction experience relevant to: o Design of small earth fill dams, hafirs o Design of erosion control structures, spillways, hydraulic control structures and associated protection works o Assessment of catchment runoff characteristics, statistical analysis and calculation of design discharge in degraded ASAL rangeland environments o Site investigation, geotechnical assessment and associated field and laboratory testing • Computer literacy requirement: MS Office, AutoCAD, open channel flow modeling, hydrological modeling • Knowledge of the UN system an advantage; experience of working with UNOPS desirable • Experience of working in Sudan desirable. • Experience working in post-conflict or emergency situations an advantage
Key Competencies • Ability to work independently • Professionalism, integrity and commitment to assignment demands • Strong analytical skills. • Accountability. • Planning and organizing • Attention to detail • Numerical and statistical accuracy within practical limits • Excellent communication and interpersonal skills. • Aptitude for political sensitivities • Team player
Languages Candidate must be thoroughly proficient in written and spoken English. Spoken Arabic a distinct advantage
Applicants should send a letter of application and their CV to careers@ctgglobal.com . Please subject your email with BHJOB2678_195. Telephone enquiries may be directed to Emma Kalonzo: Tel: +971 (0)4 369 5027
No comments: