D'Onofrio General Contractors Corp. (DGCC), as a subcontractor to Turner Construction USA, performed marine construction and diving services to rehabilitate approximately 1200 linear feet of granite and concrete seawall at Rockefeller University along the East River. The scope of work included rebuilding, resetting and repointing granite block sections, pumping voids in concrete wall sections, railing repairs and upland sinkhole repairs. DGCC developed and deployed several innovative value engineering initiatives to maintain schedule and progress despite challenging underwater conditions and other unique problems that arose during construction.