Alerts and Closures

Notification of Water Pumping

The East Bay Regional Park District has entered into an agreement to purchase surplus water from the Zone 7 Water District via Arroyo Valle to refill Shadow Cliffs Regional Recreational Area to return recreational opportunities to the lake, including swimming, fishing, and boating. Surplus water will be pumped from the Arroyo Valle into Shadow Cliffs beginning May 3, 2023, and continue through May 31, 2023.

Resource Protection

Prairie Falcon Trail is closed until further notice for resource protection.

Delays possible on Golf Course Dr

PG&E will be performing pole maintenance work off Golf Course Drive on Tuesday, May 30 near the Tilden Golf Course parking lot at Tilden Park. There will be traffic controls, one lane will remain open, and drivers should expect delays. 

Road Closure
Wildcat Canyon Road is currently closed from Camino Pablo to Inspiration Point. Please use Grizzly Peak Blvd to access the park as it is inaccessible via Wildcat Canyon. Updated May 28, 2023.

Section closed to protect natural resources

An approximate 2/3 mile segment of trail between Charbray Street and the Tassajara Ridge has been closed to protect natural resources.  It will likely not re-open until sometime in September/October.

Partial Closure of Las Trampas to Mt. Diablo Regional Trail in Danville
The Las Trampas to Mount Diablo Trail from La Gonda Way to El Alamo Court is closed due to a large tree down. Updated May 28, 2023.

Iron Horse Trail Partial Closure for Repairs

The Iron Horse Trail will be closed for repairs between Monument Blvd and Willow Pass Rd from June 12 to July 12, 2023.

Temporary closures due to capacity limitations

Due to high spring visitation, Sunol parking areas may reach full capacity and close temporarily. Parking areas typically reopen when capacity is available.

Damaged Trail
The intersection of Briones Crest Trail/ Mott Peak Trail and Briones Crest Trail/ Lagoon Trail is currently damaged but passable with care. Barricades and cones have been posted on both ends of the fire trail to warn park users. Please follow all signage and use caution. Updated May 28, 2023.

Swim Lagoon Closed

Contra Loma Swim Lagoon will be CLOSED Summer 2023 for facility repairs.

Temporary parking closures due to capacity

Due to increased visitation, primarily on Saturday and Sunday, vehicle access to Coyote Hills may close temporarily. Vehicle access to the park typically reopens when capacity is available, but expect very extended wait times to enter. Additional Parking is available at Dumbarton Quarry Campground.

Please submit any questions or comments using our Contact Us Form.

Trail Closure
West Side Loop Trail is closed due to storm damage. Updated May 28, 2023.

Water Availability
Water Availability Updates:All water is non-potable (filter, treat, or boil for human consumption).

• Eagle Springs - Water available
• Backpack Camp - Water available
• Doe Camp - Water available
• Maggie's Half Acre - Water available
• Boyd Camp - No water available, please use Stromer Springs
• Stromer Springs - Water available

No horse-trailer parking at Proctor Staging Area until further notice.
The exit at Proctor Staging area has collapsed and is closed until further notice. The entrance is now serving as a one-lane, entrance and exit. Unfortunately, the entrance is too narrow to allow horse trailers to exit the staging area.  Updated May 28, 2023.

Trail Closures
The Bay Area Ridge Trail is closed due to creek flooding. Upper Seafoam Trail is closed due to downed trees. Laurel Loop Trail is closed due to hazardous trees.  Updated May 28, 2023.

Trail Closures

The following trails are closed due to storm damage:

• Stone Corral Trail (from Coyote Trail to Morgan Territory Road)
• Black Hills Trail
• Highland Ridge Trail from Backpack Camp west to the junction of Raven Trail

Del Valle open with limited amenities
Del Valle Regional Park is open with limited amenities.

• Bring your own drinking water. Water at the park may be intermittent.
• Use caution on storm-damaged trails. Signs are posted.
• The Marina, boat rentals, and campground store remain closed until further notice. CA State Fishing licenses are not available to purchase at this time.
• Construction equipment/noise may be present during normal working hours.
• The Visitor Center is currently closed.

Del Valle WEST Swim Beach Water Quality Conditions

• The WEST swim beach has a Caution Advisory posted for blue-green algae. See Blue-Green Algae Information for additional details.
• Swim Beach Conditions [PDF] 
• Monitoring Program 

Hardy Canyon Trail Closed
Hardy Canyon Trail is closed until further notice due to storm damage.  Updated May 28, 2023.

BART Maintenance Work

BART will be performing maintenance along the Alameda Creek Paved Trail at the BART underpass from February 20, 2023, through June 20, 2023. Please expect intermittent closures and reduced trail width while work is being completed.

Fishing Lake Closed
The fishing lake is closed until further notice due to an increase in silt in the lake from recent storms.   Updated May 28, 2023.

Trail and Area Closures
Due to recent storm damage, the Park is not accessible via Redwood Rd from I-580 westbound in Castro Valley. Access via Redwood Rd from Skyline Blvd. The following trails and staging areas remain closed:
Staging Areas Closed: MacDonald Staging Area
Trails Closed:

• Brandon Trail Stone Bridge to Horseshoe Trail - trail impassable due to a failed culvert
• Brandon Trail Horseshoe Trail to Bort - Open to hiking only 
• Cascade Trail
• Columbine Trail
• Escondido Trail
• Logger’s Loop Trail
• Lost Ridge Trail
• Mirador Trail 
• Ranch Trail
• Redtail Spur Trail
• Willowview Trail

Anthony Chabot Campgrounds Closed

All Anthony Chabot campgrounds will be closed through May 25, due to storm damage. Please contact Reservations if you have questions about cancellations. 
Call 1-888-327-2757, option 2. *For Canadian residents, please use 510-544-2707.

Annual Closure

The Castle Rock area of Mount Diablo State Park located adjacent to Stage Road Trail in Diablo Foothills will be closed from February 1, 2023, until August 1, 2023. View Map. This area is closed to visitors annually for the protection of the American peregrine falcon. Peregrine falcons are territorial and highly sensitive during nesting season.

Del Valle Campground Closed Through October 1

Del Valle Campground remains closed due to severe winter storm damage. Extensive repairs are needed. Campsites are being assessed and will be reopened based on safety conditions. A small, upper portion of the campground, convenience cabins, equestrian campsites, and some group campsites will reopen on May 22.
Please contact Reservations if you have questions about cancellations. 
Call 1-888-327-2757, option 2. *For Canadian residents, please call 510-544-2707.

Skyline Trail Partial Closure
Skyline Trail is closed between Fish Ranch Rd and Old Tunnel Road staging area due to a mudslide. View Map.  Updated May 28, 2023.

Storm-damaged Trail
A culvert on Leona Trail near Artemisia Trail has failed and is impassible. The trail is not closed as the park can still be accessed from both sides, but the trail no longer connects and the area should be avoided for further landslide issues. View Map. Updated May 28, 2023.

Whispering Creek Trail Partially Closed
Whispering Creek Trail is closed on the east side of the Park and also the section on the west side of the Park due to storm damage. Shoreline Trail is also closed due to thick mud and fallen trees. View Map.  Updated May 28, 2023.

Wildcat Creek Trail Flooded
Approx 150ft of the Wildcat Creek Trail is closed due to flooding near the Wildcat Marsh Staging Area at the Richmond Parkway underpass.  Updated May 28, 2023.

Shady Slope Trail Opened
Shady Slope Trail has reopened, but some areas remain damaged from recent storms. Please use caution and follow all signage. Updated May 28, 2023.

Storm Damaged Trail Closures
The following trails are currently closed due to storm damage: Meyers Ranch Trail, Garin Woods Trail, High Ridge Loop Trail, South Fork Trail, and Ziele Creek Trail. Other trails have also sustained some storm damage. Use caution while accessing all open trails in Garin and Dry Creek Pioneer. View Map.  Updated May 28, 2023.

Storm-damaged Trails
The Chabot-to-Garin Trail is open but storm-damaged. Take extra care and follow all signage on the trails.  Updated May 28, 2023.

Bay Trail Closed
The Bay Trail is closed at Bayfront and Pinole Shores due to storm damage.  Updated May 28, 2023.

Del Valle EAST Swim Beach Water Quality Conditions

• The EAST swim beach has a Caution Advisory posted for blue-green algae. See Blue-Green Algae Information for additional details.
• Swim Beach Conditions [PDF] 
• Monitoring Program 

Lake View Trail Partially Closed
The Lake View Trail is closed at the cattle pond due to storm damage. View Map.  Updated May 28, 2023.

Las Trampas Storm Damage Update
Sycamore Trail is closed due to a landslide near the halfway point.
Chamise Trail is open but damaged due to storms. Please use caution and follow all signage. View Map.  Updated May 28, 2023.

Lafayette Staging Area Closed
Lafayette Ridge Staging Area is closed due to significant landslides. All other park entrances are open. View Map.  Updated May 28, 2023.

Temescal Fishing Dock Closure
The middle fishing dock along the Lower West Shore Trail is closed due to safety concerns. View Map.  Updated May 28, 2023.

Old Moraga Ranch Trail Partially Closed
The Old Moraga Ranch Trail is closed from Sanders Drive to Sanders Ranch Road, due to a landslide.  Updated May 28, 2023.

West Shore Trail and Redwood Canyon Golf Course Closed
The West Shore Trail and Redwood Canyon Golf Course are closed.
The closure of the West Shore Trail means that the Lake Chabot loop is currently unavailable. 
View Map.  Updated May 28, 2023.

Trails Closures
The following trails within the park are currently closed:

• West Ridge Trail between Golden Spike and Bridle Trail is closed 
• Toyon Trail is closed

Alameda Creek Trails Closed
All Alameda Creek Trail staging areas are OPEN. The Alamo Canal Trail 580 undercrossing is OPEN.The following underpasses along the Alameda Creek Trails are CLOSED and inaccessible to the public until further notice:

• Isherwood paved (all other paved underpasses are OPEN)
• Highway 880 unpaved

Lake Temescal Water Quality Conditions

• There are no current advisories for blue-green algae posted. See Blue-Green Algae Information for additional details.
• Swim Beach Conditions [PDF] 
• Monitoring Program 

Lake Anza at Tilden Park Water Quality Conditions

• There is a Caution advisory for blue-green algae posted. See Blue-Green Algae Information for additional details.
• Swim Beach Conditions [PDF] 
• Monitoring Program 

Trail Closures - Tilden

Memory Trail is closed and impassable between Canon Dr. and Selby Trail because of a bridge failure.

The upper 0.43 miles of Laurel Canyon Trail is closed until further notice due to storm damage. Detour Map. View Map. 
Grizzly Peak Trail is closed to equestrian traffic due to storm damage.
Selby Trail is closed at the connector trail to the Merry-Go-Round.  Updated May 28, 2023.

Coyote Hills Parking Lot Project

The gravel parking lot located at Paseo Padre Parkway and Patterson Ranch Road is closed. View Map.
The existing lot will be replaced by a paved 100-car lot with shade, flush toilets, landscaping, EV charging, bus parking, picnic tables, and wildlife overlooks. The new parking lot is due to open in Summer 2023 and will be located further up Patterson Ranch Road and will have better pedestrian and vehicle circulation. 
To accommodate early park users, Coyote Hills staff will open the gates to the park at 7am.

Ferry Point Pier Removal Project - Miller Knox

The East Bay Regional Park District owns and operates Miller/Knox Regional Shoreline, including the historic Ferry Point Pier which extends into the San Francisco Bay. The wooden pier is over 100 years old and damaged and must be removed for safety.
Ferry Point Pier Project Description and FAQs (PDF) Ferry Point Pier Project Description and FAQs (Spanish) (PDF)

Construction Notice - Coyote Hills Restoration and Public Access Project
Construction will take place through Summer 2023. Trails may be re-routed periodically as needed. There will be a traffic lane shift along Patterson Ranch Road - please use caution.  More information.  Updated May 28, 2023.

Trail Closure Notice - Tuibun Trail

The Tuibun Trail, between Paseo Padre Parkway and the kiosk, has been re-routed due to construction work taking place through Fall 2023. View Map.

Contra Loma Reservoir Water Quality Conditions

• There are no advisories for blue-green algae in the reservoir at this time. See Blue-Green Algae Information for additional details.
• Note: The Swim Lagoon is closed for the 2023 season due to ongoing maintenance. Blue-Green Algae issues do NOT affect the Contra Loma Swim Lagoon water quality.

Lake Chabot Water Quality Conditions

• A Caution Advisory for blue-green algae is posted. See Blue-Green Algae Information for additional details.
• Swimming is never permitted at Lake Chabot.

Area Closure Notice - Martin Luther King Jr. Regional Shoreline

• Shoreline Center
• Kayak Ramp at the North Doolittle Staging Area
• Right Dock (south side). Pilings are in need of replacement

Keller Beach at Miller/Knox Regional Shoreline Water Quality Conditions

• Swim Beach Conditions [PDF]
• Monitoring Program

Area Closure Notice - On-Going Soil Delivery and Grading Work

This 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 Amendment adopted in 2013. More information.

Lago Los Osos at Quarry Lakes Park Water Quality Conditions

• A Caution Advisory is posted at Lago Los Osos. See Blue-Green Algae Information for additional details.
• Swimming is never allowed and water contact is not permitted at Lago Los Osos.

Area Closure Notice - Soil Testing
Recent soil testing of the entire landfill detected lead in specific, localized areas around the perimeter of the north side of the park (the portion of the park located across the Hoffman Channel bridge). For your continued safety, the areas are fenced off from all public/pet access. The Park District, under oversight of the San Francisco Bay Regional Water Board, is developing a plan to restore these areas.  Updated May 28, 2023.

Area Closure Notice - Shadow Cliffs

• Swim beach is closed. Swimming is not permitted. The refreshment stand is closed for the winter.
• Fish plants are on hold.
• No watercraft of any kind will be permitted to launch until further notice.
• Please help keep invasive mussels out of our water.
• Read more about mandatory watercraft inspections and the Invasive Mussel.

Trail Closure Notice - Lake Trail
Lake Trail is closed due to terrain damage. Updated May 28, 2023.

Shadow Cliffs Lake Water Quality Conditions

• Swimming is CLOSED for the 2023 season due to low water levels. NO SWIMMING.
• There are no current advisories for blue-green algae posted. See the Blue-Green Algae Information page for additional details.
• Swim Beach Conditions [PDF]
• Monitoring Program 

Trail Closure Notice - Trail & Staging Area
The Wilcox Station Staging Area and McCosker Loop Trail will be closed for construction, from June 2020 to Spring 2023, for creek restoration and public access enhancements. The project restores over 3,000 feet of creek habitat, including daylighting 2,800 feet, previously culverted underground.  Updated May 28, 2023.

Shinn Pond at Alameda County Trails Water Quality Conditions

• A Caution Advisory for blue-green algae is posted. See Blue-Green Algae Information for additional details.
• Swimming is never allowed at Shinn Pond.

Horseshoe Lake / Niles Swim Beach Water Quality Conditions

• The Niles Swim Area is CLOSED due to a Danger Advisory posted for blue-green algae.
• There is a Danger Advisory posted for blue-green algae. See Blue-Green Algae Information for additional details.
• Swim Beach Conditions [PDF] 
• Monitoring Program

Trail Closure Notice - Lafayette-Moraga Regional Trail
Until further notice, the Valle Vista to Westchester section of the Lafayette Moraga Trail is closed.  This closure only affects the last half-mile on the Moraga end. The remaining 7 miles from Lafayette into Moraga is open for normal trail activity. Updated May 28, 2023.

Reporting Swimmer's Itch

To report cases of Swimmer's Itch please call Alameda County Environmental Health (510) 567-6700 or East Bay Park's Water Management 510-544-2328

Trail Closure Notice - Carquinez Overlook Trail
The northern spur of the Carquinez Overlook Trail that runs through the Eucalyptus grove is closed due to hazardous trees and unsafe trail conditions.
The Access road from the end of Prospect Ave is closed due to hazardous trees and unsafe trail conditions.
Map of trail closures.  Updated May 28, 2023.

Crown Beach Regional Shoreline Water Quality Conditions

• Swim Beach Conditions [PDF]
• Monitoring Program 

Trail Closure - Briones to Las Trampas Trail
The Briones to Las Trampas Trail from Golden Gate Way to Moraga Blvd. in downtown Lafayette is closed until further notice. Updated May 28, 2023.

Big Break Regional Shoreline Water Quality Conditions

• There are no current advisories posted for blue-green algae at Big Break. See Blue-Green Algae Information for additional details.

Area Closure Notice - Roberts Pool
Roberts Pool is closed for facility upgrades, renovation, and replacement. It is expected to reopen in Summer 2023. More info.  Updated May 28, 2023.