Seal Beach

Project Sheet

Location: Orange County, Seal Beach, CA, US

Year: 2016

Project Type(s): Marsh restoration / Habitat restoration

Project Description: The Seal Beach NWR’s cordgrass dominated salt marsh habitat has been adversely affected by subsidence and sea level rise. The main objective of the Seal Beach project is to improve habitat quality and facilitate sea level rise (SLR) adaptation. An 8 to 10 in. thin layer of dredged material will be placed over 10 acres of a low elevation salt marsh in Oct-Jan 2015/2016. Approximately 10,000 to 13,500 CY of clean dredged material from the Main Channel West of Sunset Harbor will be placed on the site via rainbow sprayer, open pipe, or end-of-pipe baffle impingement. The dredged material placement is expected to take from 4 to 6 weeks. Monitoring of vegetation, sediment dynamics, elevation, invertebrates and birds communities, and wetland biogeochemistry is planned pre and post placement.