Dredging will primarily be done using a large barge-mounted crane that will excavate sections of the bay floor and deposit the material onto two boats. The boats will transport the material to a designated reuse area where it will be deposited back to the bottom of the bay. A majority of the extracted material will be placed at various other locations in the bay, and the remaining materials will be used to restore beaches along Crown Point and Vacation Island.
To mitigate potential impacts to marine wildlife, up to 70 acres of eelgrass will be replanted in various locations using a team of scuba divers. This eelgrass replacement will be the largest one of its kind on the west coast.
“This project is very complex, and our staff has worked very hard to prepare for this work, so the engineering aspects are going to be impressive and interesting to watch,” said James Nagelvoort, director of the Public Works Department.
The project will dredge approximately 64 acres within Mission Bay, resulting in an estimated 122,000 cubic yards to 220,850 cubic yards of dredged material. All of the dredged material will be reused, but the trash and other unusable materials will be removed and disposed.
During the work, sections of Mission Bay and certain beaches will be closed. The public is encouraged to keep a safe distance from construction equipment on the bay and beaches at all times.
The work is anticipated to be completed this October. For more information about the project, visit www.sandiego.gov/missionbaydredging.