This Redi-Rock seawall in Quincy, MA was another great application for our Redi-Rock retaining wall blocks. Situated on a tidal and brackish estuary in Quincy Bay, this multi-million-dollar condominium complex is breathtaking. After testing the salinity of the estuary, additional steps were taken to enhance the porosity of the concrete blocks in this saltwater application. The results were redefining. Replacing a 50-year-old failed timber wall, this new Redi-Rock retaining wall was designed to withstand the storms, currents, and wave action this inlet is known for, as well as, the much-anticipated boat docks for new residences.