The Sea Island Reserve Groin Construction and South Terminal Groin Repair consisted of restoring an existing sea groin of approximately 820 linear feet in addition to the creation of a new sea groin of approximately 650 linear feet. SJ Hamill was responsible for furnishing and delivering approximately 11,000 tons of new armor stone and the placement of over 22,200 square feet of marine mattresses. All work was tidal and involved close attention to tidal cycles. SJ Hamill’s stone was produced in a quarry in Sparta, GA; the stone was railed into Brunswick, GA where it was then transported in over-the-road dump trucks and delivered to Sea Island. The marine mattresses varied in size from 70-110 square feet. Mattresses were furnished in Marietta, GA and then delivered and filled onsite prior to placement.
