About Marnix van der Vat

Mr. Marnix van der Vat is an expert in the fields of integrated water resources management and flood risk management.


Marnix is a generalist with expertise ranging from technical skills in GIS and modeling of hydrology, hydraulics, hydrodynamics, water quality and ecology to more policy oriented skills, such as policy analysis, cost-benefit analysis and process management. He has gained his experience mostly at Delft Hydraulics and Deltares, but also has ample experience working for a Dutch province and a regional water board.


His experience includes a long list of assignments in the Netherlands, in other European countries and further abroad. Recently, he has mostly been working in Asia (Indonesia and Thailand). He has lived abroad for longer periods in Kenya, Argentina, Poland, China and Thailand.


Marnix has been trained as a physical geographer at the University of Utrecht, specializing in hydrology and soil science. Later education has broadened his scope to environmental impact assessment, environmental policy and natural resources economy.

Working experience

  1. Deltares

    Senior Advisor

    2008 - present
  2. WL Delft Hydraulics

    Senior Advisor

    2006 - 2008
  3. World Wide Fund for Nature (WWF)

    Manager international projects, World Wide Fund for Nature (WWF), the Netherlands

    2005 - 2006
  4. Water Board “De Stichtse Rijnlanden”

    Head of Flood Protection Department, regional Water Board De Stichtse Rijnlanden

    2004 - 2005
  5. Provincy Utrecht

    Senior project manager, Strategy Department, Province of Utrecht.

    2003 - 2004
  6. Provincy Utrecht

    Interim head of Department of Rural Development, Province of Utrecht

    2002 - 2003
  7. Provincy Utrecht

    Advisor flood management, Water Department, Province of Utrecht

    2001 - 2002
  8. Post-Higher Technical Education Centre, Amsterdam

    Lecturer of a course on Integrated Water Management at Post-Higher Technical Education Centre, Amsterdam

    1996 - 1997
  9. WL Delft Hydraulics, Department of Inland Water Systems, Delft, the Netherlands

    (Senior) advisor

    1991 - 2001

Share this page.