Project Description
The project involved maintenance dredging of Red Hook Flats Anchorage in New York Harbor, managed by the U.S. Army Corps of Engineers. The goal was to achieve depths of -35, -40, and -45 feet MLLW, with an additional 2 feet of allowable overdepth. Approximately 500,000 cubic yards of primarily silt and clay material were removed from the critical shoal area within the anchorage. The dredged material was deposited at the Historic Area Remediation Site (HARS), located approximately 4 miles east of Sandy Hook, New Jersey.
Major Challenges
One of the major challenges was working closely with the owner to address and resolve quantity overruns in various sections of the anchorage area. This required careful re-evaluation of the dredging quantities, adjustments to the project scope, and effective communication with the owner to ensure the project remained on track and within budget despite the unforeseen overruns.
Project Highlights
A key project highlight was the successful collaboration with the owner and local pilots to keep the very active anchorage open to New York Harbor vessel traffic throughout the dredging operations. By developing and implementing a comprehensive traffic management plan, the project team was able to maintain the flow of maritime traffic while safely and efficiently completing the necessary dredging work. This achievement was made possible through the strong partnerships forged with the owner and pilots, demonstrating the project team’s commitment to supporting the overall operations of the New York Harbor.
Project Scope
The scope of this project included the maintenance dredging of the Red Hook Flats Anchorage, New York Harbor, Federal Navigation Project. The dredging was performed to the following depths: -35 feet Mean Lower Low Water (MLLW) plus 2 feet of allowable overdepth, -40 feet MLLW plus 2 feet of allowable overdepth, and -45 feet MLLW plus 2 feet of allowable overdepth. Approximately 500,000 cubic yards (CY) of material was removed from the critical shoal area within the Red Hook Flats Anchorage.
The dredged material was be transported and placed at the Historic Area Remediation Site (HARS), approximately 4 miles east of Sandy Hook, New Jersey. The dredged material primarily consisted of silt and clay.
The successful completion of this project restored the authorized depths within the Red Hook Flats Anchorage, ensuring the continued safe navigation and operations within this federal navigation project.
