Together with Rijkswaterstaat, Mourik and other parties we are joined to work on the life-extending maintenance of the Prinses Marijke Sluis in Rijswijk. MechDes is assigned to work on the machine systems within the complex. Panama wheel drive and several smaller drives are designed and calculated according the VOBB and other Rijkswaterstaat standards. The work covers (phase 1) concept and basic engineering, including the calculation (FEM) of the construction. In a later stage (phase 2) we will proceed with detailed design of these systems.