Dead tree at removal Rienhardt Redwood

Alerts and Closures

Overview

Know before you go! View ParkFinder and alerts/notices below before heading out to parks. Some trails, park areas, swim facilities, may be temporarily closed -- due to weather conditions, water/algae conditions, park projects, habitat restoration, or repairs and maintenance. 

Alert LevelLocationDescription
Trail Closure Posted

Trail Closure - Contra Costa Canal Trail

The Contra Costa Canal Trail, from Oak Road to the Iron Horse Trail intersection, will be closed by Contra Costa Water District for canal liner repairs. This will be an intermittent set of closures and delays from Feb. 26 to March 22, 2024. Please contact CCWD with any questions - 925-260-2246.

Other Posted

Maintenance - Contra Costa Canal

During the months of February-April, the Contra Costa Water District will be conducting a cleaning of the Contra Costa Canal from the Canal Trail. There will be delays and some trail closures during this time. Please contact CCWD at (925) 688-8000 with any questions.

Other Posted

Marciel Road Closed Through April 1

Marciel Road in Anthony Chabot Regional Park will be closed to vehicles past the Marciel Staging Area through April 1. The closure is necessary to ensure safe egress for large log-hauling vehicles as part of a fuels management project. The Marciel Staging Area will remain open.

Area Closure Posted

Picnic Site Closure

Acacia Picnic Site is closed until June 1, 2024, for renovations.

Flooding Posted

Flooded Trail
Whispering Creek Trail between the foot bridge and the lake trail is flooded and will be closed until further notice.  Updated February 21, 2024.

Other Posted

Fishing Pier Closure

Doolittle fishing pier is currently closed to the public for safety reasons.

Trail Closure Posted

Trail Closure - Wildcat Creek Trail

Due to culvert damage, the Wildcat Creek Trail is closed between Jewel Lake and the Wildcat Canyon Regional Park gate.

Trail Closure Posted

Trail Closures

The following trails are currently closed:

  • Brandon Trail from the Day Use Area to the Cottontail Trail closed until further notice
  • Lake Chabot Bike Loop is currently unavailable due to the closure of Brandon Trail
  • Willowview Trail

Flooding Posted

Seasonal flooding along the Wildcat Creek Trail in Richmond

Approximately 120 feet of the Wildcat Creek Trail, along the Richmond Parkway undercrossing, is currently experiencing seasonal flooding. Flooding in this area is expected to remain during the wet winter months through into late spring/early summer 2024. 

Other Posted

Bathroom Construction Delay

Construction of replacement bathroom facilities at Crown Beach along Shoreline Drive at Grand Street has been delayed. The Park District is working with the City of Alameda to restart construction as soon as possible.

Trail Closure Posted

Trail Detour between Dougherty Rd and Dublin-Pleasanton BART Station

Until further notice, a temporary detour of the Iron Horse Regional Trail between Dougherty Road and the Dublin-Pleasanton BART Station will be in place. View Map.

The Scarlett Drive roadway project will widen and extend existing Scarlett Drive from Dougherty Road to Dublin Boulevard and provide a new segment to the Iron Horse Regional Trail. The project will require the temporary detour of the trail while roadway and utility improvements are made to Scarlett Drive. The City of Dublin will also be constructing a pedestrian and bicycle bridge connecting the Iron Horse Regional Trail on the north and south sides of Dublin Boulevard at the intersection of Scarlett Drive. The bridge will provide access to Don Biddle Community Park, which is located on the north side of Dublin Boulevard adjacent to the Iron Horse Regional Trail.  

The pedestrian bridge project will provide a safer and easier crossing for trail users and facilitate improved traffic flow along Dublin Boulevard by providing a grade-separated bridge crossing over Dublin Boulevard for pedestrians, bicyclists and BART commuters. The terminus of the southeasterly side of the bridge crossing will lead directly to the Dublin-Pleasanton BART Station. For more information on the Iron Horse Trail pedestrian overcrossing please visit the City of Dublin website located at https://dublin.ca.gov/2073/Iron-Horse-Trail-Dublin-Boulevard-Overcr.

Area Closure Posted

Seasonal Campground Closure

Anthony Chabot Family Campground and Group Camp sites are closed for the season starting November 1, 2023. The campgrounds will re-open on April 1, 2024.

Area Closure Posted

Lafayette Ridge Staging Area Closure

The Lafayette Ridge Staging Area will be closed beginning December 20, 2023, through April 2024 for accessibility improvements, including restroom upgrades, a new drinking fountain and water bottle filling station, and improved disabled access parking. Access to trails will be impacted.

Area Closure Posted

South Park Drive Annual Closure for Newt Migration

South Park Drive in Tilden Park will be closed to vehicles from November 1, 2023, through March 31, 2024, for the protection of California newts as they utilize the road to migrate during the rainy season.  Please adjust your travel plans by using other access routes such as Shasta Road or Golf Course Drive.  South Park Drive will remain open to pedestrians and bicyclists. More Info.

Other Posted

Greathouse Visitor Center Temporarily Closed
The Greathouse Visitor Center is temporarily closed, please check back for updates on reopening dates. Mine tours are still being offered and weather permitting, staff is available by the Greathouse Visitor Center entrance with park information, educational activities, and Trails Challenge shirts and books on Fridays 10am-2pm, and Saturday/Sundays 10am-4pm. Updated February 21, 2024.

Trail Closure Posted

Stream Trail Closed for Tree Work

Stream Trail will be closed between Tres Sendas Trail and Prince Trail from Thursday, February 22 to Friday, February 23, due to tree work in the area. Please follow all signage and exercise caution in the area.

Trail Closure Posted

Trail Closures - Towhee and Huck's Trail

Towhee Trail, from Honker Bay Trail to Huck's Trail, and Huck's Trail, are closed for tree maintenance until further notice. Please follow all signage and exercise caution in the area.

Trail Closure Posted

Trail Closure

Muskrat Trail north of Patterson Ranch Road, and Willows Trail at Coyote Hills are closed due to flooding. Chochenyo Trail is open but has standing water at various locations.

Trail Closure Posted

Trail Closure
The Shady Glen Trail is currently closed. Updated February 21, 2024.

Trail Closure Posted

Trail Closure

The San Francisco Bay Trail between Pinole Shores Staging Area and Bay Front Park will be closed starting in early March 2024 to repair 100-foot section of trail that was damaged by a landslide during the 2022-2023 winter storms. Construction is scheduled to take approximately two months.

Trail Closure Posted

Trail Closure: Vollmer Peak Trail

The South Park Drive section of Vollmer Peak Trail is closed due to hazardous trees. Please follow trail closure signs and practice caution when hiking in the park, particularly during stormy weather.

Area Closure Posted

Radke Martinez Shoreline Partial Closure

A portion of the Shoreline Park will be closed from Tuesday, September 5 through January 2024, for irrigation replacement work. View Map of Closed Area.
All facilities within the closed area including the parking lot, restrooms, playgrounds and picnic areas will be unavailable during this time. Access to the Pickleweed Trail, Grangers’ Wharf Trail and Killdeer Trail between Grangers’ Wharf and Pickleweed, will remain open during construction.
Alternative parking and restrooms are available at Grangers’ Wharf and Waterfront Park, view Park Map.
The new irrigation system will save water by significantly improving watering efficiency in the park.

Area Closure Posted

Thurgood Marshall Regional Park

Thurgood Marshall Regional Park is closed with no public access, however, there are occasional public tour events. Check for upcoming tours or events at Calendar of Events - Thurgood Marshall.

Trail Closure Posted

Iron Horse Trail Overcrossing Construction - San Ramon

The north side of the Iron Horse trail adjacent to Bollinger Canyon Road is closed during the construction of an overcrossing, a pedestrian/bike detour is in place. View Map. (At a later date, closure of the south side of the Iron Horse trail adjacent to Bollinger Canyon Road will also be implemented; a pedestrian/bike detour will be in place.)
The overcrossing project began on July 31, 2023, and is expected to take 18-24 months to complete. View Project information.

Other Posted

Watercraft Inspections

Updated February 21, 2024.

Other Posted

Parking Notice

Due to high visitation, Castleridge Trailhead parking may be limited. Consider visiting at less busy times or using the now-reopened Foothill Staging Area or new Tyler Ranch Staging Area.

Area Closure Posted

Del Valle Regional Park is open with limited amenities

  • The Marina Store is open daily with modified hours for boat rentals on a first come first served basis. Rentals for motorboats, patio boats and canoes can be completed between 7am and 1.45pm; boats must be returned by 4pm. The store is open between 7am - 5pm to purchase bait, tackle, license sales, and snacks and drinks.
  • The Camp Store is now closed until spring.
  • Use caution on storm-damaged trails. Signs are posted.
  • Construction equipment/noise may be present during normal working hours.
The following amenities remain closed:
  • The Visitor Center is currently closed.
  • The Swim Beach Food Concession remains closed until further notice.
  • Only a small, upper portion of the campground, convenience cabins, equestrian campsites and some group campsites have reopened. The majority of Del Valle Campground remains closed until further notice due to severe storm damage. Extensive repairs are needed. Campsites are being assessed and will be reopened based on safety conditions. Please contact Reservations if you have questions about cancellations. 
    Call 1-888-327-2757, option 2. *For Canadian residents, please use 510-544-2707.
Updated February 21, 2024.

Other Posted

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 February 21, 2024.

Trail Closure Posted

Trail Closure
The Miwok Trail through Los Vaqueros Watershed is closed for resource protection until further notice. For questions regarding the closure, please contact Contra Costa Water District. Updated February 21, 2024.

Area Closure Posted

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.

No Water Posted

Water Availability Update
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 (use Stromer Springs)
  • Stromer Springs - Water available
  • Stewart's Camp - Water available
Updated February 21, 2024.

Trail Closure Posted

Tassajara Creek/Ridge Trail Section Closed

The Tassajara Ridge Trail from Charbray Street across the valley to the top of the opposite ridge is closed due to extensive trail damage.

Area Closure Posted

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 February 21, 2024.

Trail Closure Posted

Trail Closure
Stone Corral Trail (from Coyote Trail to Morgan Territory Road) is closed due to storm damage. Updated February 21, 2024.

Trail Closure Posted

Trail Closure
Hardy Canyon Trail is closed until further notice due to storm damage.  Updated February 21, 2024.

Area Closure Posted

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, 2024, until August 1, 2024. View MapThis area is closed to visitors annually for the protection of the American peregrine falcon. Peregrine falcons are territorial and highly sensitive during nesting season.

Trail Closure Posted

Trail Closures
Due to previous winter storm damage, the Park is not accessible via Redwood Rd from I-580 westbound in Castro Valley. Access via Redwood Rd from Skyline Blvd.
Trails Closed:

  • Brandon Trail Stone Bridge to Horseshoe Trail - trail impassable due to a failed culvert
  • Redtail Spur Trail
  • Willowview Trail
  • Deer Canyon Trail
View Map Updated February 21, 2024.

Trail Closure Posted

Skyline Trail Partial Closure
Skyline Trail is closed between Fish Ranch Rd and Old Tunnel Road staging area due to a mudslide. View MapUpdated February 21, 2024.

Area Closure Posted

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 February 21, 2024.

Trail Closure Posted

Storm Damaged Trail Closures
Garin Woods Trail and Ziele Creek Trail are currently closed due to storm damage.
High Ridge Loop Trail has sustained damage but is open to pedestrian use. South Fork Trail is open to hiking only. Meyers Ranch Trail is currently open with temporary repairs. Other trails have also sustained some storm damage. Use caution while accessing all open trails in Garin and Dry Creek Pioneer.  Due to storm damage Dry creek garden is closed until next year.  View MapUpdated February 21, 2024.

Trail Closure Posted

Bay Trail Closed
The Bay Trail is closed at Bayfront and Pinole Shores due to storm damage.  Updated February 21, 2024.

Trail Closure Posted

Lake View Trail Partially Closed
The Lake View Trail is closed at the cattle pond due to storm damage. View MapUpdated February 21, 2024.

Trail Closure Posted

Trail Closure
Sycamore Trail is closed due to a landslide near the halfway point. View Map Updated February 21, 2024.

Other Posted

Lafayette Ridge Trail Repairs
Visitors should use caution on the Lafayette Ridge Trail as repair work is continuing through some segments. Updated February 21, 2024.

Area Closure Posted

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 February 21, 2024.

Trail Closure Posted

Trail Closure
Toyon Trail is currently closed.  View Map  Updated February 21, 2024.

Caution Advisory Posted

Lake Temescal Water Quality Conditions

Caution Advisory Posted

Lake Anza at Tilden Park Water Quality Conditions

Trail Closure Posted

Trail Closures - Tilden

  • Memory Trail is closed and impassable between Canon Dr. and Selby Trail until further notice because of a bridge failure. 
  • The upper 0.43 miles of Laurel Canyon Trail is closed until further notice due to storm damage. Detour MapView 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 until further notice.

Please consider alternative trails/trailheads, exercise caution and follow all signage in the area. Updated February 21, 2024.

Area Closure Posted

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 Spring 2024 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.

Other Posted

Ferry Point Pier Removal Project

The Ferry Point Pier Removal Project is expected to begin in the summer of 2024 and last approximately 1-2 months. The pier is over 100 years old and has deteriorated beyond repair. Removal is necessary for public and maritime safety. The iconic metal Gantry structure and the concrete fishing pier will not be removed. The public fishing pier at Ferry Point will be closed during construction for public safety.  

Other Posted

Construction Notice - Coyote Hills Restoration and Public Access Project
Trails may be re-routed periodically as needed. There will be a traffic lane shift along Patterson Ranch Road - please use caution. The project is expected to open in Spring 2024More informationUpdated February 21, 2024.

Trail Closure Posted

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 Spring 2024. View Map.

Danger Advisory Posted

Contra Loma Reservoir Water Quality Conditions

  • There is a Danger Advisory for blue-green algae posted at the reservoir at this time. See Blue-Green Algae Information for additional details.
  • Note: The Swim Lagoon is closed for the season. Blue-Green Algae issues do NOT affect the Contra Loma Swim Lagoon water quality.

Caution Advisory Posted

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 Posted

Area Closure Notice - Martin Luther King Jr. Regional Shoreline

  • Shoreline Center is closed
  • Right Dock (south side) is closed. Pilings are in need of replacement

Danger Advisory Posted

Del Valle Boat Launch Water Quality Conditions

No Advisory Posted

Keller Beach at Miller/Knox Regional Shoreline Water Quality Conditions

Area Closure Posted

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.

Caution Advisory Posted

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 Posted

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 February 21, 2024.

Trail Closure Posted

Trail Closure Notice - Lake Trail
Lake Trail is closed due to terrain damage. Updated February 21, 2024.

Danger Advisory Posted

Shadow Cliffs Lake Water Quality Conditions

Trail Closure Posted

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 2024, 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. More Info. Updated February 21, 2024.

Caution Advisory Posted

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.

No Advisory Posted

Horseshoe Lake / Niles Swim Beach Water Quality Conditions

Trail Closure Posted

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 February 21, 2024.

Other Posted

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

No Advisory Posted

Crown Beach Regional Shoreline Water Quality Conditions

Trail Closure Posted

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 February 21, 2024.

No Advisory Posted

Big Break Regional Shoreline Water Quality Conditions

Other Posted

Newly Renovated Pool

The newly renovated Roberts Pool will reopen for the swim season in 2024.

Park Rule Violations

To report an Emergency or Crime/Suspicious Activity in Progress,
call 911 or (510) 881-1121 from a cell, 24 hours a day.

To report Non-Emergency Park Rule Violations such as reckless bike/skate/scooter riding, failure to properly leash or control pets, and improper trail usage such as eBikes or mountain bikes on restricted trails, please call our Non-Emergency Public Safety Dispatch at (510) 881-1833, 24 hours a day, or submit a Park Watch Report online at the link below.

To report non-emergency safety hazards, or damaged trails and facilities, talk to a park ranger or call Public Safety Dispatch at (510) 881-1833. Be sure to mention the nature and exact location of the problem including the trail or area name.

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