The department exists to execute the following functions:
Designing water conservation works such dams, pipelines, reservoirs and water supply stations
Construction of all water conservation works such as dams, canals, weirs, pipelines and others
Ensures the maintenance and safety of water conservation works
Supervision of contractors doing PSIP projects
Does engineering consultancy
Recommends appropriate standards regarding water conservation works and dam safety
Compilation of budgets for PSIP projects