- cutoff works
- cycling use of water
- cylinder gate
- cylindrical surge chamber
- daily regulation
- dam
- dam axis
- dam heel
- dam site
- dam toe
- damage mechanics
- damping
- dambreak flood
- damtype hydropower station
- Darcy's law
- data scanning
- dead reservoir capacity
- dead water level
- deadweight of vessel
- debris flow
- debris flow erosion
- debris slide
- deep beam
- deep foundation
- deep percolation
- deep pool
- deep sliding
- deephole blasting
- deepwater wave
- deflected current wall
- deflection
- deformation
- deformation behaviour of rock
- deformation observation of structure
- degradation of pollutant
- degree of consolidation
- degree of freedom
- degree of saturation
- delayed elasticity
- delta
- demolition blasting
- densification by explosion
- density
- density flow
- department of water administration
- deposition, siltation
- depreciation
- depreciation of construction machinery
- depression detention, depression storage
- depth of drainage ditch