anals, conditions of their operation and Turkmenistan's capabilities to produce construction or other materials used or that can be used for lining of irrigation canals, prepare recommendations on the selection of the canal linings considering economic, ecological and technically feasible types and configurations of lining materials resistant to extreme climatic conditions in Turkmenistan as well as preliminary / approximate budget estimates for several options (at least 3 options);
- Action Five: Based on the technical, financial and constructability aspects of the proposed options, prepare recommendations on the purchase of the necessary equipment for the production of selected types of lining materials (polymer, concrete and/or others), with the maximum use of locally produced raw materials.
- Action Six: Provide recommendations for the preparation of tender documents, particularly on the technical part of the tender requirements, for the purchase of lining or raw materials and appropriate equipment / machinery to produce / apply lining materials at the pilot sites.
- Action Seven: Visit the project pilot sites, collect, review and analyze the existing data on the pilot region. Take measurements and get / request new data if needed.
- Action Eight: Provide recommendations to the National experts on methods of measuring the rates of canal’s infiltration losses and quantify the improvement of canals via pre-and post-rehabilitation testing. Conduct training for national water engineers and project team to test the infiltration losses using practical exercises on selected segments of the canal at pilot sites.
- Action Nine: Provide technical support during the implementation of the pilot construction projects, including instructions on construction technology, necessary equipment and machinery, procedures for changing the shape and installation of each material, depending on the features of particular sections of the project, total length, area, channel shape, cost, standards, by which these types of works should be done according to government standards, timetable or deadline, as well as the whole range of other parameters and conditions that all need to be determined before commencement of the construction. Advise on alternative solutions to reduce the volume of earth works. Prepare a detailed list of technical data to be collected by the local experts over the implementation of the pilot projects;
- Action Ten: Provide National experts with recommendations on the operation of lined canals in different periods of the year and on the methods for cleaning lined canals from deposits or weeds. Provide regular consultations, recommendations and methodological support to project’s National experts on the relevant project activities.
- Action Eleven: Prepare a detailed final report on the assignment, including challenges, lessons learned and recommendations for implementation of projects activities.
Deliverables and timeframe:
Deliverable 1 prepared through actions 1, 2, 3, 4, 5, 6, 7 and 8 above:
- Detailed work plan of the assignment including clear actions, methodology and timeframe to achieve the project targets for the canal lining prepared;
- Overview on lining materials applied in countries with similar climatic conditions like in Turkmenistan prepared;
- Detailed list of technical data to be collected and obtained by the local experts on feasibility studies of canal lining options prepared;
- Report with results of market research to determine the economic efficiency of the application of various types of anti-filtration materials of irrigation canals applicable to the conditions of Turkmenistan prepared;
- Data collected by the project team analyzed and recommendations on canal lining options (at least 3 options) prepared including estimated budget of works and materials/equipment;
- Recommendations on the procurement of the required equipment for the production/application of selected types of lining materials with the maximum use of local raw materials prepared;
- Recommendations on the selection of project pilot si