Dam spillway
Dam with movable hydroelectric assembly
Dam with reversible hydroelectric station
Dam with suspended hydroelectric station
Dam with transformable hydroenergetic arrangement
Damage-protecting flexible sheet dam
Damming and barrier-forming device and method
Damming device for erecting a liquid-damming protective bank
De-watering system
Decants of tailings dams
Deck-to-column connection for extendable draft platform
Decorative plant marker stake
Decorative plant marker stake
Dedicated riser tensioner apparatus, method and system
Deep draft semi-submersible offshore structure
Deep mix soil stabilization method
Deep ocean conduit
Deep root watering unit
Deep sea oil salvage means
Deep sea shark cable protectors