Marsh Creek State Park Riparian Restoration

To learn more about the Marsh Creek Restoration project assessment documents, click on each resource below:

• Biological Resources Assessment
• Aquatic Resources Delineation
• Geomorphic Assessment
• Geotechnical Engineering Study

To view the Marsh Creek Restoration project notice of preparation, click on the link below:

• Notice of Preparation

An EIR has been prepared for the Contra Costa Resource Conservation District to evaluate the environmental effects of construction and operation of a creek restoration project at Marsh Creek State Historic Park, as required under the California Environmental Quality Act (CEQA). The Project requires approval by the District Board of Directors, among other approvals.

Board approval of the restoration project is a discretionary approval triggering CEQA review. The CCRCD Board of Directors has reviewed the proposed Project and determined that it may have significant adverse impacts on the physical environment, requiring an EIR to be prepared under CEQA. This EIR has identified removal of two barns that are contributors to a Historic District at the John Marsh Historic Park as significant environmental impacts that would be unavoidable with implementation of the project.

This EIR is available for public viewing online in the folder below. Comments on the Draft EIR are accepted through November 28, 2025. To provide written comments, please e-mail Ben Weise at bweise@ccrcd.org or via letter at 5552 Clayton Road, Concord, CA 94521.

• Draft Environmental Impact Report