Posted on May 18, 2021
NEWPORT BEACH, Calif.—Newport Beach’s harbor commission has passed a resolution headed to city council recommending a small amount of dredging waste be buried in the harbor in a contained facility.
The waste, which is unsuitable for dumping in the ocean, is currently being excavated by the U.S. Army Corps of Engineers.
The proposed confined aquatic dredged material disposal site (CAD) would be located in the central portion of the Lower Harbor adjacent to Bay Island, Lido Island and Harbor Island.
The city staff report adopted by the harbor commission recommends that the city dredge approximately 300,000 cubic yards of material 47 feet below the existing harbor floor to construct the CAD facility, which will be able to accommodate about 106,900 cubic yards of the unsuitable material from the federal channels dredging project.
Once the unsuitable material is deposited in the hole, a layer of clean material will be placed as a final cap.
Newport Beach city council will review and discuss the item during its May 25 meeting.
A staff reports states that the natural process of storm water and erosion flowing into the harbor result in the movement and accumulation of sediment which must be dredged periodically to maintain the federally-authorized channel depths for safe navigation.
The federal channels extend from the entrance of the harbor to the turning basin adjacent to the Newport Boulevard Bridge and Lido Village, to the east anchorage between Bay Island and Lido Island to the Marina Park area. The channels are maintained by the federal government via the U.S. Army Corps of Engineers.
The proposed confined aquatic dredged material disposal site (CAD) would be located in the central portion of the Lower Harbor adjacent to Bay Island, Lido Island and Harbor Island.
The city staff report adopted by the harbor commission recommends that the city dredge approximately 300,000 cubic yards of material 47 feet below the existing harbor floor to construct the CAD facility, which will be able to accommodate about 106,900 cubic yards of the unsuitable material from the federal channels dredging project.
Once the unsuitable material is deposited in the hole, a layer of clean material will be placed as a final cap.
Newport Beach city council will review and discuss the item during its May 25 meeting.
A staff reports states that the natural process of storm water and erosion flowing into the harbor result in the movement and accumulation of sediment which must be dredged periodically to maintain the federally-authorized channel depths for safe navigation.
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