Posted November 12, 2019
In July, the U.S. Army Corps of Engineers New England District awarded Great Lakes Dredge and Dock a $6,393,350 contract for the Boston Federal Navigation Project. The Corps said the project was scheduled to start in September, and the maintenance dredging is required to be completed within eight months.
The project consists of maintenance dredging of approximately 400,000 cubic yards of silt, sand and clay within the following areas of the Boston Harbor federal navigation channel: 35-foot Broad Sound North Channel; 30-foot Broad Sound South Channel; 15-foot Nubble Channel; 35-foot anchorage; and the 35-foot Main Ship Channel.
Material dredged from the Broad Sound North Channel, Broad Sound South Channel and the Nubble Channel will be placed at the Massachusetts Bay Disposal Site (MBDS) approximately 15 miles offshore of Boston Harbor. The main ship channel (MSC) and 35-foot anchorage will be dredged with placement of material in the main ship channel confined aquatic disposal (CAD) cell. All dredging will be accomplished by mechanical means and dredging of silt material going to the MSC CAD cell will require the use of an environmental bucket.
During the course of the contract, additional work in the Boston Harbor will be ongoing. Deepening of the main ship channels began in July 2018. The Maryland Port Administration also signed a design agreement with the Baltimore District on the Mid-Chesapeake Bay Island Ecosystem Restoration Project to restore degraded islands with dredged material from the Port of Baltimore.