Selection of Consultant for Hydrological and Geomorphological Studies, Detail Design, Boq, Contract Administration, Supervision of Drilling of Four Water Quality and Water Level Monitoring Wells and Lugeon (Paker) Test

• Country: Ethiopia
• Summary: Selection of Consultant for Hydrological and Geomorphological Studies, Detail Design, Boq, Contract Administration, Supervision of Drilling of Four Water Quality and Water Level Monitoring Wells and Lugeon (Paker) Test
• ETT Ref No: 87716574
• Deadline: 05 Sep 2023
• Financier: World Bank (WB)
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: ET-MOWE-326006-CS-QCBS
• Purchaser's Detail:
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• Description:
• Expression of Interest are invited for Selection of Consultant for Hydrological and Geomorphological Studies, Detail Design, Boq, Contract Administration, Supervision of Drilling of Four Water Quality and Water Level Monitoring Wells and Lugeon (Paker) Test at Dd Plain for Managed Aquifer Recharge (Mar). GENERAL OBJECTIVES:- The overall objective of this project is to study and design a Managed Aquifer Recharging mechanism using cascaded surface water ponding dams in selected areas within Dire Dawa City Administration. The project has two main benefits. It primarily serves to minimize the impact of flooding during the rainy season and secondly, it increases groundwater availability by directing the stored water in the cascaded dams to the nearby aquifer system through natural fractures. SPECIFIC OBJECTIVES: Identify all possible medium and small-scale dam sites in rivers catchments of the City Administration Carry out hydrological and sediment analysis, reservoirs routing, engineering geological assessment of dams and reservoir sites Design the cascaded dams with their appurtenance structures with no foundation treatment for seepage and reservoirs that can be filled with sediments Estimate seepage of water to the ground through the catchments of the selected river Conduct geotechnical investigation as geo-structural mapping, soil test analysis Evaluate analytically the flow dynamics applying Mod flow and/or GS flow software packages and also analyze the impact of the artificial recharging mechanism on the well fields in terms of water quantity and quality; compare changes against the naturally recharging system. Carry out Socio-economic and environmental impact assessment studies Design at least 2-medium and 6-small-sized series of proto type dams Supervise the construction of 1 medium and two small-sized pilot dams Study and design effective monitoring systems: identify locations of at least 4 monitoring wells Supervise drilling and construction of monitoring wells Select appropriate monitoring devices and supervise their installations. SCOPE OF SERVICES:- The scope of the service is limited to the areas within Dire Dawa City Administration. Major activities are related to the feasibility study for Managed Aquifer Recharge (MAR) including environmental and social impact assessment and design of groundwater recharging system, design of groundwater quality and water level monitoring system, supervision of construction of the different types of dams, supervision of drilling and construction of these wells; selection of appropriate monitoring devices and supervision of their installations. Bid closing date: Sep 05, 2023 4:00 PM Bid opening date: No Specific Opening Date and Time Region: Addis Ababa [Disclaimer: The above text is machine translated. For accurate information kindly refer the original document.]
• Documents:

 Tender Notice