Lake Level
4,845.35 FEET
2/6/2023
Full Pool: 4,828.6
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Union Valley Reservoir News

Is Your Boat’s Long Winter Nap Going Well?

BoatUS News

Date: 1/1/2023

SPRINGFIELD, VA., Jan. 24, 2022 – Storms have hammered the U.S., and many recreational boats are sleeping away the winter under a layer of ice and snow. If you store your boat outside and haven’t checked up on her lately, Boat Owners Association of The United States (BoatUS) has five tips for a midwinter

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What Every Boater Wants for the Holidays: 24/7 On-Water Assistance from TowBoatUS

BoatUS News

Date: 11/14/2022

Gadgets may make good holiday gifts. However, for a boater, having 24/7 on-the-water help just a call away is much better. Like belonging to an auto club for recreational boat owners, a BoatUS Unlimited Towing Membership provides professional on-water towing services by the TowBoatUS fleet - the nation’s largest

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What Did We Name Our Boats in 2022? Top 10 Boat Names List

BoatUS News

Date: 11/11/2022

Now that recreational boating is coming to a close in much of the country, BoatUS takes a look back at the Top 10 boat names ordered this season through its online boat graphics service and provides some commentary. Andiamo: Meaning “let’s go / we go / come on” in Italian, Andiamo remains in the

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Boat Winterizing Truth or Myth? Test Your Knowledge

BoatUS News

Date: 11/1/2022

Recreational boat owners are preparing their boats for a long winter’s nap, but sugarplums aren’t dancing in their heads. What may keep them up at night is hoping cold temperatures won’t damage their boats. Freshwater expands in volume by about 9% when it freezes and can push outward with a force of

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3 Boating Safety Tips Just Right for Fall Boating

BoatUS News

Date: 10/1/2022

Fall boating season has arrived, and with it come different types of risks that cold water and air temperatures bring. Here are three boating safety tips from the BoatUS Foundation for Boating Safety and Clean Water just right for leaf peeping season. A float plan is needed: A float plan is as simple as telling a

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• River: American River
• Volume: 266,369 Acre Feet
Union Valley Reservoir is a reservoir in eastern El Dorado County, California, about 20 miles northeast of Placerville. The 277,000 acre feet lake is in Eldorado National Forest in the Sierra Nevada at an elevation of 4,870 feet.
It was formed in 1963 by the 453-foot high earth and rockfill Union Valley Dam on Silver Creek, which is a tributary of the American River. The reservoir is part of the Upper American River Project of the Sacramento Municipal Utility District, a public electric utility, which operates the dam and many other dams in the area. Recreation such as boating, fishing and camping is available there.
It stores snow melt runoff during the spring and releases it during the summer when electrical demand is greatest to a chain of hydroelectric power plants downstream. Union Valley Powerhouse at the base of the dam has a capacity of 46.7 MW and is operated as a peaking power plant, supplying electricity during times of the greatest demand. Consumptive rights to the water itself are held by the City of Sacramento, California.
The reservoir is fed by Big Silver Creek, Jones Fork Silver Creek, Tells Creek, Wench Creek and the outflows of Robbs Peak and Jones Fork powerhouses. Jones Fork Powerhouse is not on Jones Fork Silver Creek but instead conveys water from Ice House Reservoir. Robbs Peak Powerhouse gets its water from the Middle Fork American River headwaters, by way of Loon Lake Reservoir, and small reservoirs on Gerle Creek and South Fork Rubicon River. Downstream from Union Valley Dam, Silver Creek waters are largely diverted through two additional powerhouses below small reservoirs before joining the South Fork American River a few miles north of Pollock Pines, California. Silver Creek was an intermittent creek before the development of Union Valley Reservoir and the diversions from the Middle Fork American River.
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