The #concrete structures are sunk 14 feet down? Sounds like the depth in #WestHarlemPiers in #Manhattan #NYC. Competition for #OysterCastles? Assuming it does what its supposed to do.

#LittleNeckBay got 4 large #oystercastle structures in March, 2021 ostensibly to protect the shoreline from erosion. Deployment of the #oysterCastles was done by manual labor. No large barge and crane required.