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Park Closures and Notices

Storm Damage in the East Bay Regional Parks

The heavy winter rains have caused severe damage in our parks, including landslides, washed out trails, erosion and downed trees. In some parks, flooding and rising lake waters have submerged trails, picnic areas, campgrounds, swim beaches and access to lake areas. Our park staff is working hard to get as many of the parks back to public access and recreation. However, some trails or access to recreational areas may take months or longer to restore, and will remain closed to ensure public safety. We appreciate your patience during this time. Check this page frequently for current park and trail conditions before visiting the parks. More Information: Map and photos.

Fire Warnings and Weather Related Information

Park & Trail Closure Information - Listed by Facility

Alameda Creek Regional Trail

Swimming is never allowed and water contact is currently not permitted at Shinn Pond. Now due to the presence of toxic algae in the lake and we recommended that you avoid all skin contact with lake water; supervise your children and pets, especially dogs, at all times to keep them away from the water. If your skin touches the water, rinse with tap water.


The Alameda County Water District (ACWD) has begun work along the Alameda Creek Flood Control Channel that will have temporary impacts on recreation along the Alameda Creek Trail and at Quarry Lakes Regional Recreation Area. See the ACWD website for project information and upcoming meetings in Fremont. 

Anthony Chabot Regional Park

Road Closure

Redwood Road, Castro Valley, is CLOSED to all southbound traffic at Marciel Road and northbound traffic at the EBMUD staging area, until further notice due to roadway failure. This closure blocks all access between Castro Valley and Oakland. Motorists, bicyclists and pedestrians are advised to avoid the area and use alternate routes. Guests accessing the Anthony Chabot campground facilities need to enter from the Oakland/Orinda side of Redwood Road. There is no access from the Castro Valley area. For updates on the closure, visit ACPWA.org. For additional information, call John Medlock, Deputy Director, Maintenance and Operations, at (510) 670-5500.

Trail Closure

Until further notice, the following Trails are CLOSED:
  • Buckeye Trail due to landslide and trees on trail.
  • Towhee Trail between Honker Bay Trail and the main campground road.
  • Ranch Trail due to landslide and trees on trail.
  • Columbine Trail due to landslide and trees on trail.

Lake Loop Closure

Portions of the West Shore Trail, Bass Cove Trail and the area around Chabot Dam at Lake Chabot Regional Park are CLOSED seven days a week until further notice, while the East Bay Municipal Utility District completes seismic retrofit work on the 142-year-old dam. During this closure, the Lake Chabot Bicycle Loop and hiking loop will be closed across the dam. Click here for more information.  

Marksmanship Range Closure

The Marksmanship Range is closed. Click here for more information.

Antioch/Oakley Regional Shoreline

No closures at this time.

Ardenwood Historic Farm

No closures at this time.

Big Break Regional Shoreline

No closures at this time.

Black Diamond Mines Regional Preserve 

Until further notice, the Greathouse Visitor Center is CLOSED due to construction in the mine. The facility is generally open on weekends from March – November. While the Greathouse Visitor Center remains closed, the Sidney Flat Visitor Center will be continue to be open on weekends from 10am – 4:30pm. Parking fee is $5 per vehicle on weekends and holidays. For information call (510) 544-2750.

Briones to Mt. Diablo Regional Trail

No closures at this time.

Briones Regional Park

August 14, through August 24, the Old Briones Road Trail will be closed for repairs from the staging area to the Maricich Lagoons where it intersects with Spengler Trail.

Carquinez Strait Regional Shoreline

No closures at this time.

Castle Rock Regional Recreation Area

 No closures at this time.

Claremont Canyon Regional Preserve

No closures at this time.

Contra Costa Canal Trail

No closures at this time.

Contra Loma Regional Park

No closures at this time.

Coyote Hills Regional Park

No closures at this time.

Crockett Hills Regional Park

Until further notice, the following Trails are CLOSED:
- Chorus Frog Loop
    - East of Tree Frog Loop Junction
- Back Ranch Loop, in these specific locations:
    - East of Tree Frog Loop Junction
    - East of Warep Trail Junction
    - East of Back Ranch Valley Trail Junction (There are 2 locations for this closure)
- Goldfinch Trail – Completely closed
Until further notice, the Gold Finch Trail and the Chorus Frog Connector are CLOSED to protect sensitive species during the nesting season.

Crown Memorial State Beach

Until further notice, there is no entry into the Elsie Roemer Bird Sanctuary to facilitate ongoing restoration work.

Cull Canyon Regional Recreation Area

During a closure due to full capacity, visitors may not be permitted into the lagoon area until deemed safe by park staff.

Delta de Anza Regional Trail

No closures at this time.

Del Valle Regional Park

Blue-green algae is present in Del Valle Reservoir, but no toxins have been detected. Keep dogs away from the lake.

Diablo Foothills Regional Park

Until further notice, parts of all trails at the Diablo Foothills are affected by storm-related damage. Landslides, erosion, ruts from water runoff, rocks, trees and branches have caused damage to trails. Staff has not inventoried all trails in the park due to accessibility issues. Use caution and do not put yourself in harm’s way - the ground is extremely saturated and unstable. Report any damage to park staff at (510) 544-3085.  


Until further notice, the Castle Rock Trail, a single track trail at the intersection of Castle Rock Trail (fire road) and Stage Road Trail, is closed  due to a large landslide. The trail is not safe to use. Use Castle Rock Trail (fire road) or Stage Road Trail to go around that section.

Don Castro Regional Recreation Area

No closures at this time.

Garin/Dry Creek Regional Park

Until further notice, the Chabot-Garin Trail from Llama Lane to Stonebrae Radio towers is CLOSED to emergency vehicles.

Hayward Regional Shoreline

No closures at this time.

Huckleberry Botanic Regional Preserve

No closures at this time.

Iron Horse Regional Trail

No closures at this time.

Kennedy Grove Regional Recreation Area

Until further notice, the single track portion of the Sobrante Ridge Trail (also part of the Bay Area Ridge Trail) is CLOSED between the Conestoga Dr. trailhead and the Sobrante Ridge Trail Loop.

Lafayette-Moraga Regional Trail

Until further notice, a one mile section of the Old Moraga Ranch Trail is CLOSED due to a landslide. The closure is located between Camino Pablo in Moraga and the East Bay Mud Watershed Area. 

Until further notice, a portion of the Lafayette Moraga Trail is CLOSED due to a mudslide.  The closure is between 1700 School St. and Val Vista staging area in Moraga.

Lake Chabot Regional Park

Lake Loop Closure

Portions of the West Shore Trail, Bass Cove Trail and the area around Chabot Dam will be CLOSED seven days a week for 18 months, beginning May 2017, while the East Bay Municipal Utility District completes seismic retrofit work on the 142-year-old dam. During this closure, the Lake Chabot bicycle loop and hiking loop will be CLOSED across the dam. Click here for more information.

Swimming & Water Conditions

Although swimming and water contact is not permitted  at Lake Chabot, due to the presence of blue-green algae in the lake. We recommended that visitors avoid all skin contact with lake water. Supervise your children and pets, especially dogs, at all times to keep them away from the water. If your skin touches the water, rinse with tap water. Download: Information Flyer Adobe Acrobat PDF

Las Trampas Regional Wilderness

No closures at this time.

Leona Canyon Regional Open Space Preserve

Storm damage has occurred along Pyrite Trail. Caution is advised for all, especially bicyclists heading downhill.

Marsh Creek Regional Trail

No closures at this time.

Martin Luther King Jr. Regional Shoreline Park

The right dock (south side) is CLOSED until the pilings are replaced and made safe for public use.
Only the left dock (north side) is OPEN for use at the south Doolittle Dr. parking area.

McLaughlin Eastshore State Park

No closures at this time.

Miller/Knox Regional Shoreline

No closures at this time.

Mission Peak Regional Preserve

No closures at this time.

Morgan Territory Regional Preserve

Until mid-October, the only access to Morgan Territory will be from the Livermore side. Contra Costa County is making repairs to the road it will be closed to traffic from Marsh Creek Rd. Download Maps Acrobat PDF

Oyster Bay Regional Shoreline

The section of trail that goes directly uphill from the Neptune Drive entrance will be temporarily closed so that contractors can install an irrigation line for the Tree Screening Project located at the park boundary with the Waste Management facility. The Project will also extend the drinking water line throughout the park. The drinking water fountain will be temporarily unavailable during Project construction. The drinking water fountain will be available for public use after the Tree Planting Project is completed. Until then, remember to bring drinking water for you and your dogs.


Trucks will be delivering soil to Oyster Bay Regional Shoreline on weekdays. The project is part of the Park District’s ongoing efforts to build up the topography of the park to meet the standards of the District’s Oyster Bay Land Use Plan. Observe signs about areas that are closed to the public during this process.

Pleasanton Ridge Regional Park

No closures at this time.

Point Isabel Regional Shoreline

No closures at this time.

Point Pinole Regional Shoreline

The playground will be CLOSED to the public from mid-August through October 2017. The project includes the replacement of the play equipment with a net climber and stand-up spinner, wood-fiber playground surface, wheelchair-accessible path, and picnic tables. All park paths will remain open during construction.

Quarry Lakes Regional Recreation Area

No closures at this time.

Radke Martinez Regional Shoreline

No closures at this time.

Redwood Regional Park

No closures at this time.

Roberts Regional Recreation Area

No closures at this time.

Round Valley Regional Preserve

No closures at this time.

Shadow Cliffs Recreation Area

Until further notice, the Lake Trail is CLOSED due to storm damage.

Sibley Volcanic Regional Preserve

Until further notice, the south end of the McCosker Loop Trail is closed due to a landslide.

Skyline National Trail

Until further notice, a short section of the Skyline National Trail is closed between Sibley Volcanic Preserve and Huckleberry Botanic Preserve.

Sobrante Ridge Regional Preserve

Until further notice, the Sobrante Ridge Trail (which is also a section of the Bay Area Ridge Trail) is CLOSED from Conestoga Way to the Sobrante Ridge Trail Loop, due to a trail washout.

Sunol Regional Wilderness

Adjacent to the park, the Calaveras Dam Replacement Project construction will continue until the end of 2018, for the replacement dam. The San Francisco Public Utilities Commission will be building the new dam at Calaveras Reservoir. Sunol Regional Wilderness is expected to remain open for day use during this time. Sunol Backpack Camp will also remain open. There is currently no overnight camping at Sunol's Family Camp School Camp, or High Valley Group Camp. All other campsites and the reservable picnic sites will remain open at this time.

For information contact the San Francisco Public Utilities Commission at (866) 973-1476 (a 24 hour answer line).

Fish Passage Facilities within the Alameda Creek Watershed: This project is a sub-project of the Calaveras Dam Replacement Project. The project will entail improvements of the facilities, and construction of a fish ladder to facilitate fish passage around the existing Alameda Creek Diversion Dam. Construction began March 2016 and completion is expected in 2018. Park visitors will see increased construction traffic from the Geary Road entrance of the park and along Camp Ohlone Road during construction. Pay attention to park signage. Construction activity may require closures to Camp Ohlone Road and access to Little Yosemite on weekdays and Saturdays.
   > Fish Passage Project (SFPUC website)

Sycamore Valley Open Space Preserve

No closures at this time.

Temescal Regional Recreation Area

Temescal beach area will be closed between 7:30am – 12:30pm on Aug 18

Tilden Nature Area

No closures at this time.

Tilden Regional Park

Until further notice, the Selby Trail is CLOSED at the connector trail to the Merry-Go-Round.

Vargas Plateau Regional Park

Park re-opened May 15, 2017. See press release for more information.

Vasco Caves Regional Preserve

No closures at this time.

Wildcat Canyon Regional Park

Until further notice, the Havey Canyon Trail will be CLOSED closed for the duration of the Havey Canyon bridge construction project.


The Rifle Range Road Trail is CLOSED due to a major landslide. Alternate entry points into the park are through the Alvarado Staging Area off Park Ave. in Richmond, from Bonita Road, Monte Cresta Ave., or Clark Road in El Sobrante, through Tilden Nature Area, or via the Nimitz Way from Inspiration Point on Wildcat Canyon Road in Tilden Regional Park.