CMDB recently completed the Emerald Point groyne in Providenciales, TCI.
The 600ft long terminal groyne was constructed to mitigate coastal erosion of valuable beach front property in the Leeward channel in Providenciales and encourage natural
re-nourishment of the beach by encouraging the deposition of sand.

Providenciales, known locally as Provo, is an island in the Turks and Caicos archipelago. It is ringed by soft, sandy beaches, making them prone to often severe erosion, especially when subjected to storm conditions and changing currents.  

A groyne functions as a physical barrier by intercepting sand moving along the shore.
It does this by producing a sheltered environment in which sand can settle out of suspension. Often a groyne will also physically protect a beach from coastal erosion in extreme weather events.