Project:Rapid Assessments on the Status of Water Resources and Eco-hydrological Environments for the Tonle Sap and Mekong Delta River Basin Groups and River Basin Surface Water Resource Assessments
Client:Asian Development Bank (ADB)
Partners:Mekong Modelling Associates, Euroconsult Mott MacDonald, GESC
Objective:To support MOWRAM to make more informed, evidence-based water resources management and irrigation investment decisions through better understanding of water resources and ecosystems.

The overall project objective is to support MOWRAM to make more informed, evidence-based water resources management and irrigation investment decisions through better understanding of water resources and ecosystems of two river basin groups: the Tonle Sap and the Mekong Delta. The project concerns (i) rapid water resources assessment of the river basin groups (24 basins); (ii) ecological assessment of the river basin groups to identify areas for development and conservation; (iii) detailed surface water resources assessment for five river basins within these groups. FutureWater is the lead firm in the assignment and executes the water resources modelling components of the project.

Asian Development Bank (ADB) Technical Assistance (TA) 7610-CAM supports the preparation of MOWRAM’s Roadmap and Investment Program for Irrigation and Water Resources Management, 2019-2033. This investment program provides a comprehensive and strategic framework for the country’s investment in the water resources and irrigation sector.

The current project under TA 7610-CAM concerns (i) rapid water resources assessment of the Tonle Sap and the Mekong Delta river basin groups (24 basins); (ii) ecological assessment of these two river basin groups to identify areas for development and conservation; (iii) detailed surface water resources assessment for five river basins within these groups.

The overall project objective is to support MOWRAM to make more informed, evidence-based water resources management and irrigation investment decisions through better understanding of water resources and ecosystems of two river basin groups: the Tonle Sap and the Mekong Delta and at least five selected river basins within these groups. These river basins are to be selected based on their current and projected level of water stress. The health of high-priority ecosystems and their water demands are assessed in relation to basin hydrological characteristics and foreseen development of water resources.

Outputs of the project are:

  • A comprehensive knowledge base on water resources and eco-hydrology in 24 river basins
  • Hydrological characterization of 24 river basins
  • Quantification of environmental flow requirements for 24 basins
  • Selection of the five most water-stressed basins
  • Recommended options for efficient and equitable water allocation
  • Targeted investment options in the irrigation sector
  • Coupled set of calibrated hydrological / water allocation models
  • Geospatial data on (eco-)hydrology compatible with the national Water Resources Information System (WRIS) currently under development

FutureWater is the lead firm in the assignment and executes the water resources modelling components of the project.