Project objectives: To benchmark the distribution efficiency (DE) of the various components of a small, open channel gravity irrigation system and irrigation return flows from farms to the surface drainage system. To develop strategies to overcome water losses in the distribution system, including the implementation of smart systems for improved channel operations, system planning and services to improve the integration of distribution systems and farm systems, measure the improved DE and document the environmental benefits that result. To improve the distribution efficiency of a small open channel gravity system by 5% over 10 years, and hence meet the future increases in demand.