• rotate01
    Sunrise over Vallejo and Mt. Diablo as viewed from Cullinan Ranch
  • rotate02
    American Avocets feed in shallow tidal waters
  • rotate03
    Recently restored tidal marsh in the San Francisco Bay
  • rotate04
    Sandpipers take flight in a tidal lagoon
  • rotate06
    A quiet slough in the Napa Sonoma Marsh
  • rotate05
    Tidal marsh transitions to open water in the San Pablo Bay NWR



12/5/14 - Cullinan Ranch will be re introduced to tidal water for the first time in over 100 years. The event will take place on January 6, 2015. Water will be visible along the highway almost immediately...

11/24/14 - Phase III construction is nearing completion with all the internal site improvements complete. Some minor work on the accleration / deceleration lane remains. Phase IV which includes levee breaching and levee lowering is initiated and will continue until the end of January, 2015 ...

Traffic Alerts

No major traffic delays are anticipated at this time ...



The Cullinan Ranch Restoration Project will restore over 1500 acres of tidal wetlands in the San Pablo Bay National Wildlife Refuge. Once complete, the site will be open to the public to explore on foot, bicycle or kayak.

After interior demolition, protecting important infrastructure, and installation of public use elements, the Project will breach aging levees along the perimeter to allow tidal flows back into the site. Over time, it will become an expansive marsh, bisected by tidal channels and filled with a multitude of birds, fish and other aquatic species. Learn more about the project here.

  • Conceptual Plan at Pond 1 Parking Lot
  • Conceptual Plan at Guadalcanal Village (note: these improvements are not part of the current restoration plan)
  • Conceptual Plan of the Cullinan Ranch Restoration