North End Project

Restoring habitat, improving road safety, and adapting to sea level rise in Bolinas Lagoon.

Preserving Bolinas Lagoon

The North End Project will take place in the context of other restoration projects taking place in Bolinas Lagoon.

European Green Crab Removal
Since 2009, researchers from the Smithsonian Environmental Research Center, Portland State University, and University of California at Davis have been working with MCOSD and community volunteers to monitor and remove invasive European green crabs from Sea Drift and Bolinas Lagoon.

Invasive Spartina Control
Marin County Open Space District and the Invasive Spartina Project have successfully removed invasive cordgrass from the lagoon.This project continues to engage in detection and eradication of spartina as part of a long-term control project.

Kent Island Restoration
Since 2009, Marin County Open Space District, in collaboration with community volunteers, has worked to remove invasive European beachgrass, ice plant, Monterey pine, and Monterey cypress from this tidal island, to restore its hydrological function and enhance resilience to sea level rise. Learn more about the Kent Island Restoration.

Lagoon Bathymetry
Since 1968, Marin County has been conducting bathymetric surveys of Bolinas Lagoon every ten years. As part of a grant for the Kent Island Restoration, the MCOSD received funding for a new bathymetric survey of the lagoon using LiDAR (Light Detection and Ranging), Sonar (Sound Navigation and Ranging), and other state-of-the-art techniques to develop an accurate picture of the lagoon. This survey tests the accuracy of the 50-year projection of the lagoon, to better understand sea level rise, and help guide restoration priorities.

Rock Slope Protection
In 2011, the California Department of Transportation implemented the Highway 1/Bolinas Lagoon Rock Slope Protection Project to repair and upgrade the rock slope, drainage systems, and pullouts along Highway 1 immediately adjacent to Bolinas Lagoon.