The City of Newport Beach is requesting a permit to construct a Confined Aquatic Disposal facility in the central portion of Lower Newport Bay, the USACE Los Angeles District said .
The CAD would provide a location to contain dredged sediment that is unsuitable for open ocean disposal.
Clean material suitable for beach nourishment, generated from constructing the facility, would be transported and placed along the nearshore ocean beaches.
To accommodate the required volumes of expected unsuitable material and sediment capping material, the proposed estimated size of the CAD facility is approximately 590 feet by 590 feet.
“The CAD facility construction activities would cause increases in suspended sediments and turbidity, which would affect foraging species’ ability to see food normally visible in the water,” said USACE.
The CAD Facility has been designed to accommodate 199,500 CY of material.