WDam
WAbutment
WBunding
WCoupure
WDam removal
WElver pass
WFish ladder
WFlood barrier
WFloodgate
WFuse plug
WGatehouse (waterworks)
WIntake tower
WMilldam
WNeedle dam
WPumped-storage hydroelectricity
WSand dam
WSpillway
WStepped spillway
WTailrace fishing
WTainter gate
WVolcanic dam