Project Details
Emergency recovery and environmental remediation work was executed at the Ninety-Nine Islands Hydroelectric Station on the Broad River in South Carolina following hurricane impacts. The six-unit, 18-megawatt facility—originally commissioned in 1910—is one of Duke Energy’s oldest hydroelectric stations and plays a key role in meeting peak energy demand.
The scope included hydraulic dredging of approximately 12,000 cubic yards of sediment and debris to restore reservoir function, water flow, and intake efficiency. A mobile sand processing plant was operated on-site to process dredged material and produce aggregate used for coal ash cap remediation, supporting compliant closure activities in accordance with environmental regulations.
This work supported long-term operational reliability, environmental protection, and infrastructure integrity at a historic hydroelectric asset.
Cooper Tacia has integrated Atlantis Marine into its operations, strengthening and expanding its civil and marine capabilities. For this project, Atlantis Marine acted in a construction management role, coordinating closely with other contractors to ensure successful delivery. The work reflects the depth of experience, leadership, and technical expertise now embedded within Cooper Tacia’s Civil & Marine Division. Original project ownership, contractual relationships, and client engagements remain with the respective entities. Project information is shared for illustrative purposes only.
Client
Duke Energy
Contract Type
Private – Lump-Sum
Project Cost
$4M
