Workers Letting Cyclists Pass

Alerts and Closures


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

Alert LevelLocationDescription
Danger Advisory Posted

Lake Temescal Water Quality Conditions

Other Posted

Vegetation Management on Redtail Trail

Vegetation management is underway on Redtail Trail from November 28 through mid-December. Due to heavy machinery working in the area, Flaggers will be providing traffic control on the trail and on the adjacent sections of Marciel RoadPlease follow trail signage and possible short detours. For more info, please visit the Fuels Management page.

Trail Closure Posted

Partial Trail Closure

The Marsh Creek Trail in Oakley will be closed between 8 am-noon on Thursday, December 1, between Laurel Road and Creekside Park Bridge while the City of Oakley conducts tree work.

Area Closure Posted

Tilden Newt Migration

South Park Drive will be closed to vehicle traffic (pedestrians and bikers allowed) from November 1, 2022, to April 1, 2023, for the annual road closure for newt migration. All reservations along the road are non-reservable during this time.

Area Closure Posted

Area Closure Notice - Lake Anza Lawn

  • Lake Anza Lawn Area is closed for a construction project. Please use alternative lawn areas at Meadows on Lone Oak Rd. The Lake Anza Trail and picnic sites are open for use. 
  • Updated 11/18/2022

No Advisory Posted

Lake Anza at Tilden Park Water Quality Conditions

Trail Closure Posted

Trail Closure Notice - Tilden

  • 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 11/14/2022

Area Closure Posted

Coyote Hills Parking Lot Project

The gravel parking lot located at Paseo Padre Parkway and Patterson Ranch Road will close in mid-November 2022. 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 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, from Nov 28, 2022.

Danger Advisory Posted

Del Valle Boat Launch Water Quality Conditions

Area Closure Posted

Crockett Hills grazing pond rehabilitation project

Areas of the Sky Trail and Soaring Eagle Trail may be impacted by a grazing pond rehabilitation project from Tuesday, October 18, 2022. Trails should remain open, but visitors are asked to take extra care and follow signage posted on the trails.

Trail Closure Posted

Wildcat Marsh/Landfill Loop Trail Maintenance

Possible closures along Wildcat Marsh/Landfill Loop through November 2022 due to annual trail maintenance. 

Other Posted

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)

Other Posted

Construction Notice - Coyote Hills Restoration and Public Access Project

  • Construction will take place from July 2022 through Spring 2023. More information
  • Trails will be re-routed periodically as-needed. Updated 11/2/2022.

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 Fall 2023. View Map.
  •  Updated 11/10/2022

Caution Advisory Posted

Contra Loma Reservoir Water Quality Conditions

  • There is a Caution Advisory 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 2022 season due to ongoing maintenance. 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
  • Tidewater Outdoor Recreation Office
  • Kayak Ramp at the North Doolittle Staging Area
  • Right Dock (south side). Pilings are in need of replacement
  • Updated 11/2/2022

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.
  • Updated 11/2/2022

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.

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.

For Non-Emergency Trail Safety Hazards or Damaged Trails/Facilities, locate a park ranger or call Park Operations at (510) 544-2510 (Mon-Fri, 8:30am-5pm, voicemail available after hours or call the Non-Emergency Dispatch line above).

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