The institutional and irrigation infrastructure of System H of the Mahaweli Multipurpose Development Project provides adequate opportunities for achieving a high standard of water management. A coordinated approach for achieving close cooperation between agency officials and farmers at the field channel and distributary channel levels, combined with a flexible delivery schedule, resulted in an improved field water use efficiency within the H5 subsystem. An equitable allocation of water to each field channel command area and an effective utilization of rainfall have also been achieved.