Facility, Road & Trail Closures

Holiday Closures for the EEC

Please note the Holiday Season Closures for the Environmental Education Center in Alviso. 

Levee Repair Work to Impact the Alviso Loop Trail

Daily trail closures will occur from September through December 2019 for levee maintenance. Learn more here!

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.  

Ravenswood Levee Maintenance Project  

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


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