Del Valle Regional Park

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Del Valle Regional Park
Lake Del Valle, Near Livermore, California (10753667465).jpg
Del Valle Regional Park and Lake
Del Valle Regional Park
Location Alameda County, California
Nearest city Livermore, California
Coordinates 37°36′02″N121°42′39″W / 37.600564°N 121.710835°W / 37.600564; -121.710835
Area4,316 acres
Created1968
Operated by East Bay Regional Park District
StatusOpen
Website www.ebparks.org/parks/del-valle

Del Valle Regional Park is a part of the East Bay Regional Park District (EBRPD) in an unincorporated region of Alameda County, California, 10 miles (16 km) south of the city of Livermore. [1] The park covers 4,316 acres (~17.47 km2., ~6.74 sq. mi.). [1]

Contents

Geography

Overview

The park largely surrounds Lake Del Valle, an artificial reservoir made in 1968 by damming Arroyo Valle, a small river. The lake provides a source of recreation for visitors including swimming, fishing, and boating. There are lifeguards present at designated swimming areas.

The park also offers 28 miles (~45.1 km) of hiking, horseback, and bicycle trails, in addition to 150 camping sites. It is the eastern gate for the Ohlone Wilderness Trail, which leads to Sunol and Mission Peak Regional Parks. [1]

Trails

The park, like many East Bay Regional Parks, has numerous trails. One trail, the East Shore Trail, leads from the Arroyo Road staging area to a ridge above Del Valle, and then follows the lake for several miles toward the boat launch. The Sailor Camp Trail leads to the Ohlone Wilderness Trail, and an unnamed trail leads to Mendenhall Road. Most of the trails climb hills around the lake; most, however, stay between 500 and 1,500 feet (150 and 460 m) in elevation. [2]

Access to the park

By car

The park can be approached from Del Valle Park Road (via Mines Road) or Arroyo Road, where the staging area is small and frequently fills up on weekends. Del Valle Road connects to the southern end of the park and has access to hiking, the swim beaches, campground, visitor center, and boat launch, while Arroyo Road connects to the northern staging area for hiking.

Mines Road can be reached from Tesla Road (J2) and the California State Route 130. L Street in Livermore becomes Arroyo Road, it can be reached from Concannon Boulevard and Wetmore Road.

By foot

You can reach the Arroyo staging area along a narrow footpath which connects to Sycamore Grove Park and the general LARPD (Livermore Area Recreation and Park District) trail network. [3]

Lake Del Valle in Livermore.jpg
panoramic view at Del Valle Regional Park near Livermore

History

Early years

Construction crews began work on the lake in 1966. [4] The construction of Del Valle Reservoir was finished in 1968. [5] Del Valle Regional Park was opened to the public in 1970, [6] 36 years after the EBRPD was founded in 1934. [7]

Weather

California drought in the 2010s

In the early- to mid-2010s, a severe drought struck the California region, including the East Bay; [8] this caused 12 million trees in California to die. The East Bay Regional Park District wrote an article to help with the drought. [9]

Flooding in the 2016-2017 winter

Shortly after the California drought in the 2010s, Del Valle Regional Park suffered widespread damage from the unusually heavy rains and La Niña that struck the East Bay in early 2017. Much of the damage was around Lake Del Valle, where runoff overflowed five times into beaches, campgrounds and picnic areas. Some of the trails were washed out and needed to be rebuilt. The park was closed for nearly three months, before reopening on April 15, 2017. EBRPD estimated the cost to repair this park alone at $1.8 billion, and said the cost would rise further if the rains continued. [10]

With another La Niña scheduled for the 2017-2018 winter, it seemed quite possible that repairs would have to be done after that winter as well. [11]

2019 flooding

In early 2019, heavy rains again came to the Del Valle Regional Park area, and as a result, the park closed in mid-February 2019. It was scheduled to re-open in early March. [12]

Algae

Lake Del Valle has in the past had a problem with dangerous algae, and during the 2015/2016 winter, swimming was banned in the lake. [13]

See also

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References

  1. 1 2 3 Del Valle Regional Park profile, East Bay Regional Park District, retrieved September 1, 2007
  2. ↑ "Del Valle Regional Park". www.ebparks.org. Retrieved 2017-12-05.
  3. ↑ "LAPRD Trail Network" (PDF). Archived from the original (PDF) on 2017-09-22. Retrieved 2017-12-05.
  4. ↑ "Current History Detectives Article". www.bunnweb.org. Retrieved 2017-12-05.
  5. ↑ "Del Valle Reservoir". www.zone7water.com. Retrieved 2017-12-05.
  6. ↑ "Del Valle Map Text Side" (PDF). Archived from the original (PDF) on 2017-12-15. Retrieved 2017-12-05.
  7. ↑ "Celebrating Eighty Years of Regional Parks in 2014". www.ebparks.org. Archived from the original on 2017-12-06. Retrieved 2017-12-05.
  8. ↑ "California drought: Sour water — a new normal in the East Bay?". SFGate. Retrieved 2017-12-05.
  9. ↑ "The Drought and Our Parks". www.ebparks.org. Archived from the original on 2017-12-05. Retrieved 2017-12-05.
  10. ↑ Cuff, Denis. "Storms hit parks hard." Bay Area News Group. April 15, 2017. Accessed April 15, 2017.
  11. ↑ "La Niña Declared; Cooldown Nipping the Warmest Autumn on Record in Northeast U.S. by Bob Henson | Category 6". Weather Underground. Retrieved 2017-12-05.
  12. ↑ "Del Valle Regional Park in Livermore Closed Due to Flooding Concerns". KNTV. 16 February 2019. Retrieved 19 August 2024.
  13. ↑ Lyons, Jenna (2015-12-09). "Toxic algae close Livermore's Lake Del Valle to swimming". SFGate. Retrieved 2019-04-24.
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