Los Osos Creek Wetland Restoration Planning & Design

Los Osos Creek Wetland Restoration_ Planning _ Design
Los Osos Creek Wetland Restoration Planning and Design

As a result of human modification of the floodplain for agricultural cultivation and development, sedimentation in Morro Bay has accelerated during the past 150 years, threatening the health and function of the Estuary. 

The project area, located in the historic floodplain of Warden and Los Osos creeks at the mouth of the Los Osos Valley, has been identified in a number of studies and surveys as a key location for sediment deposition, and it was acquired by CSLRCD in 2015 with State Coastal Conservancy funds for this objective. The project will protect the health of the Morro Bay estuary and enhance wetland and upland habitat for a number of threatened and endangered species through the following restoration components:

1.  Reconnect historic floodplain and wetland habitat—breach portions of levee, improve fish passage, decommission domestic well, and manage invasive species including Steelhead, California redlegged frog, Tidewater goby, Least Bell’s vireo, Morro shoulderband snail, Morro manzanita and Marsh sandwort.

2.  Restore native coastal dune habitat—remove invasive vegetation, demolish existing upland infrastructure, decommission the upland homestead access road and establish native species.

Partners: MBNEP, CLC, MCAS, County of SLO

Funders: WCB, SCC, USFWS

RCD Contact: Hallie Richard, hrichard@coastalrcd.org