Facility, Road & Trail Closures


4th of July Road Closure

The front gate of the Don Edwards SF Bay NWR will be closed starting at 6:00 PM on July 4, 2019. Bicycle and pedestrian commuters will still be allowed to pass through the gate to get to/from work. After 6:00 PM, no public will be allowed into the Don Edwards refuge due to public and fire safety.  

Construction on Bair Island Unit
Beginning in late June, Inner Bair Island will be experiencing construction activities while a temporary 1-mile long access road is constructed and utilized from the Whipple Avenue pedestrian entrance to the northwest end of Inner Bair Island. The Don Edwards San Francisco Bay National Wildlife Refuge is coordinating with Silicon Valley Clean Water on the next phase of their 48-inch Force Main Reliability Improvement Project.  This project is off-refuge but will require temporary access through the Bair Island Unit.  
The Whipple Avenue pedestrian access to the main Bair Island Trail will be narrowed and portions of the Bair Island Trail may experience temporary short closures in early July, but the Bair Island trail will otherwise remain accessible for the duration of the project. 
This work will not impact the official entry to the trail on Bair Island Road.  Upon completion of the project, the temporary road will be restored to native vegetation.  

 Trail News:    

The Ravenswood Ponds Levee Maintenance and Habitat Enhancement Project is building new trails & wildlife habitat. Learn more!

A section of the Alviso Slough Trail will be will be intermittently CLOSED for levee improvements Monday –Friday from 7:30 a.m. until 5:00 p.m.  Click here for map (pdf, 272 KB)

Levee trails are impassable when wet.  Call 510-792-0222 ext. 363 for latest information.