662 Island Drive

WGI provided structural engineering services and construction phase services for the seawall replacement at 662 Island Drive. This project replaced a 175-foot seawall and constructed an 80-foot marginal dock on Everglades Island in the Town of Palm Beach. The seawall replacement sheet piles were constructed with a GIKEN Silent Piler. This method of construction was used to allow construction while abiding by the noise ordinance prohibiting pile driving from November to April in the Town of Palm Beach. The project was started in February during the noise moratorium. The sheet piling and seawall cap were installed during this season, which allowed the dock to be completed in early August. The construction method used also significantly reduced the construction vibration and minimized impact on the existing structure. The seawall cap integrated the existing “gondola” steps into the design with a stepped concrete cap. The marginal dock was constructed with concrete piles, precast concrete caps, heavy timber framing, and Ipe (Brazilian hardwood) decking.