|Location||Sacramento County, California|
|Primary inflows||American River|
|Primary outflows||American River|
|Catchment area||1,898 sq mi (4,920 km2)|
|Basin countries||United States|
|Average depth||46 ft (14 m)|
|Water volume||8,760 acre-feet (10,810 dam3)|
|Shore length1||~10 mi (16 km)|
|Surface elevation||128 ft (39 m)|
|1 Shore length is not a well-defined measure.|
Lake Natoma is a small lake in the western United States, along the lower American River, between Folsom and Nimbus Dams in Sacramento County, California. The lake is located within the Folsom Lake State Recreation Area which is responsible for maintaining the facilities and bike trails surrounding the lake. Lake Natoma is located 15 miles east of Sacramento, and has 500 surface acres of water. The total length of lake Natoma is 4 miles.
Lake Natoma is a recreational lake for rowing, kayaking, and swimming; powerboats are permitted with a 5 mph (8 km/h) "no wake" restriction. It is home to the Sacramento State Aquatic Center, and regularly hosts West Coast College Rowing Championships, the Pac-12 Conference rowing championships, and, every four years, the Intercollegiate Rowing Association Championships. The Lake Natoma Four Bridges Half Marathon is held each October at the lake.
Lake Natoma includes the historic Negro Bar area in Folsom, the site of a gold rush era African-American mining camp.
The Folsom Powerhouse State Historic Park overlooks Lake Natoma in the city of Folsom. It is a California State Historical site, preserving an early hydroelectric power station.
A paved cycling and jogging trail encircles the lake along with unpaved equestrian trails. The Folsom South Canal Trail also begins at the lake. Several parking lots and boat launching ramps are located around the lake.
In the 1950s, after the Folsom Dam was constructed as part of the Central Valley project work began on Nimbus Dam which would create Lake Natoma. Lake Natoma was built to manage water released from Folsom Dam. Lake Natoma is a reservoir that was built in conjunction with the Folsom Dam and Folsom reservoir by the Central Valley Project Authority. In addition to maintaining water flow the lake provides water to irrigation canals and generates hydro electric power. After Lake Natoma and Folsom Lake were built, the Bureau of Reclamation was given control of operation for both reservoirs and dams.
Before Natoma reservoir was created the section of the American river it now occupies was the site of many gold mining operations in the 1800s.
Around 1956, the Bureau of Reclamation and California Department of Parks and Recreation, also known as State Parks, formed an agreement that State Parks will be responsible for recreational activities on Lake Natoma, as well as Folsom Lake.
In 1979, the general plan for the State Recreational Area at Folsom Lake, including Lake Natoma, was amended three times before it was approved.As part of the 1979 General Plan amendment, the Folsom Powerhouse State Historic Park became a separate unit, not a part of the Folsom Unit.
In 2002, multiple meetings were held for public input and for interested stakeholder to plan and prepare for recreational purposes adequate enough for the growing populations. There was a 62% increase in population since the General Plan was accepted in 1979.
On the south bank of Lake Natoma lies the old Folsom Powerhouse State Historic Park, located in the City of Folsom at the intersection of Riley and Scott Streets. The Folsom Powerhouse was the first powerhouse to generate electricity for the city of Sacramento in 1895 .[ clarification needed] The powerhouse was open until 1952 when construction of the Folsom Dam was completed. The construction of the new hydroelectric dam rendered the Folsom powerhouse obsolete. The old dam that was used in conjunction with the old powerhouse was removed during the construction of the new dam.[ clarification needed] This historic site brought 11,000 volts of electricity over 22 miles to Sacramento. The site is under the National Register of Historic Places. There is a visitor center where the public can learn more about the history of the park.
Surrounding this narrow lake are foothills, plateaus, cliffs and river canyons. 14-mile-long (23 km) riparian ecosystem encircles the lake. The Lake Natoma Bluffs stand 300 feet (91 m) and line the lake from the Negro Bar to the Mississippi Bar.A dense
People come to this area for many activities, especially in the summer. The area is accessible via US Highway 50.Since these reservoirs are located in the metropolitan area, the State Recreational Area (SRA) tries to create a habitat suitable for the wildlife that are already living there, to have both "recreation and nature." In 2000, there were over 1.5 million visitors to Folsom Lake State Recreation Area, including Lake Natoma and Folsom Lake.
Lake Natoma was first ready for the public in 1958.The common water activities are kayaking, rowing, canoeing, swimming, water skiing, sailing, and fishing. Land activities include hiking, biking, picnicking, jogging, biking, and horseback riding. Educational activities are also available, including information about historical sites near Lake Natoma and Folsom Lake. Like the common fish that spawn in the American River, the history of the California Gold Rush, and Native American life before the Europeans' arrival.
The lake has three boat launches for powerboats, jetskis, and sailboats.These launches are well designed with two hard surface launches and one gravel launch. With enough room to turn around, and parking areas. Fishermen like to use the Negro Bar launch, as many fishing tournament events occur nearby. California State University Sacramento (CSUS) holds rowing classes here.
There is only one campground open to the public on lake Natoma: Negro Bar Group Campground.
Located at the Willow Creek inlet to Lake Natoma, this area is used for both land and water activities.The area is used for picnicking, birdwatching, fishing, and canoeing. Lake Natoma Trail is nearby.
Where the Nimbus Dam ends, there is an Aquatic Center right on Lake Natoma that belongs to the California State University Sacramento (CSUS).This is where CSUS holds some of their aquatic classes, such as skiing and wind surfing.
A bike path follows along the East Trail and West Trail of Nimbus Dam that lines Lake Natoma.
Six miles of dirt trail lead to Nimbus Flat and Willow Creek.There are also dirt trails on both sides of Lake Natoma; one is six miles and other is nine miles.
Under Nimbus Dam and Lake Natoma lies the Nimbus Fish Hatchery, operated by the California Department of Fish and Games, that was built in 1955 by the U.S Bureau of Reclamation.The California Department of Fish and Games operates a visitor center here. The hatchery replicates spawning environments by creating a fish ladder that guides salmon and steelheads to spawn. For recreational fishing in the northern and Central California bodies of water, the hatchery produces 4 million Chinook salmon and over 400,000 Steelhead trout per year.
Native animals known to lie here are the mule deer, coyote, bobcat, mountain lion, quail, bald and golden eagle, heron, egret, western pond turtle, and California horned lizard.A few common fish in Lake Natoma are catfish and carp. Aquatic animals in Lake Natoma are usually tolerant of warm water and low oxygen level water. Other fish found here are bass, bluegill, and green sunfish. Right under Nimbus Dam are steelheads, Chinook salmon, American shad, and Pacific lampreys. Bald eagles and golden eagles can be found around Folsom Lake and Lake Natoma for nesting; about six bald eagles and two golden eagles are observed annually. Both are protected under the Federal Bald Eagle Protection Act of 1940.
Fish at Lake Natoma were found to have high levels of mercury in their tissue. A sample of 22 fish showed that mercury levels had approached or exceed guidelines set by the U.S. Environmental Protection Agency, which is set at 3 microgram Hg/g wet weight.Since there were too few samples, it is not known for sure if mercury is randomly distributed throughout Lake Natoma. Concentration of mercury increases as sizes of fish increase, usually because of bioaccumulation. Factors include length, weight, and age. For example, predators at the top of the food chain, such as large bass mouth, spotted bass, and white catfish, usually have higher concentrations.
The California Office of Environmental Health Hazard Assessment (OEHHA) has developed a safe eating advisory for Lake Natoma, based on levels of mercury found in fish caught here.
Folsom is a city in Sacramento County, California, United States. It is commonly known for Folsom Prison, the song "Folsom Prison Blues" as well as for Folsom Lake. The population was 72,203 at the 2010 census. The median home price in Folsom is $651,491 with the average household income at $100,163.
The Folsom Lake State Recreation Area surrounds Folsom Lake in the foothills of the Sierra Nevada, and is managed by the California Department of Parks and Recreation. It is located near the city of Folsom, California, about 25 miles (40 km) east of Sacramento.
Lake Oroville is a reservoir formed by the Oroville Dam impounding the Feather River, located in Butte County, northern California. The lake is situated 5 miles (8.0 km) northeast of the city of Oroville, within the Lake Oroville State Recreation Area, in the western foothills of the Sierra Nevada. Known as the second-largest reservoir in California, Lake Oroville is treated as a keystone facility within the California State Water Project by storing water, providing flood control, recreation, freshwater releases assist in controlling the salinity intrusion into the Sacramento-San Joaquin Delta and protecting fish and wildlife.
Stevens Creek Reservoir is an artificial lake located in the foothills of the Santa Cruz Mountains near Cupertino, California. A 1,063-acre (430 ha) county park surrounds the reservoir and provides limited fishing, picnicking, hiking, and horseback riding activities. Although swimming is not allowed, non-power boating is allowed for certain parts of the year. No powered boats or jet skis are allowed. All vessels must be inspected for invasive Quagga mussels prior to launch.
The San Luis Reservoir is an artificial lake on San Luis Creek in the eastern slopes of the Diablo Range of Merced County, California, approximately 12 mi (19 km) west of Los Banos on State Route 152, which crosses Pacheco Pass and runs along its north shore. It is the fifth largest reservoir in California. The reservoir stores water taken from the San Joaquin-Sacramento River Delta. Water is pumped uphill into the reservoir from the O'Neill Forebay which is fed by the California Aqueduct and is released back into the forebay to continue downstream along the aqueduct as needed for farm irrigation and other uses. Depending on water levels, the reservoir is approximately nine miles long from north to south at its longest point, and five miles (8 km) wide. At the eastern end of the reservoir is the San Luis Dam, or the B.F. Sisk Dam, the fourth largest embankment dam in the United States, which allows for a total capacity of 2,041,000 acre-feet (2,518,000 dam3). Pacheco State Park lies along its western shores.
Lake San Antonio is a lake located primarily in southern Monterey County, California, and partially in northern San Luis Obispo County, California. The lake is formed by San Antonio Dam on the San Antonio River. The dam is 202 feet tall and was completed in 1965 under Monterey County District Engineer Loran Bunte Jr. The lake and dam are owned by the Monterey County Water Authority. The lake has a capacity of 350,000 acre-feet (430,000,000 m3).
Cache Creek is an 87-mile-long (140 km) stream in Lake, Colusa and Yolo counties, California.
Millerton Lake is an artificial lake near the town of Friant about 15 mi (24 km) north of downtown Fresno. The reservoir was created by the construction of 319 ft high Friant Dam on the San Joaquin River which, with the lake, serves as much of the county line between Fresno County to the south and Madera County to the north.
Folsom Lake is a reservoir on the American River in the Sierra Nevada foothills of California, United States.
New Hogan Lake is an artificial lake in the foothills of the Sierra Nevada in Calaveras County, California, about 30 miles (48.3 km) northeast of Stockton. It is formed by New Hogan Dam on the Calaveras River, whose North and South forks combine just upstream of the lake, and has a capacity of 317,000 acre⋅ft (391,000,000 m3). The earth-fill dam, completed in 1963, is 210 feet (64.0 m) high from the crest of the dam to the original streambed. The reservoir was first filled in 1965. There is a small hydroelectric plant at its base. It is owned by the United States Army Corps of Engineers and provides flood protection, drinking water, electricity and water for irrigation. There is also recreation available, such as boating, fishing, water skiing and camping.
Whiskeytown Lake is a reservoir in Shasta County in northwestern California, United States, about 8 miles (13 km) west of Redding. The lake is in the Whiskeytown Unit of the Whiskeytown-Shasta-Trinity National Recreation Area.
The Jedediah Smith Memorial Trail is a paved multi-use pathway that runs between the confluence of the Sacramento River with the American River, just north of downtown Sacramento, California, and Beal's Point at Folsom Lake, north of Folsom. The trail is 32 miles (51 km) long, and is used as a major recreational destination, as well as a commuter artery for cyclists. The trail is considered one of the longest paved purpose-built bike trails in the country. The trail is maintained by the County of Sacramento and is painted with mile markers placed at every half-mile increment.
Lake Perris is an artificial lake completed in 1973. It is the southern terminus of the California State Water Project, situated in a mountain-rimmed valley between Moreno Valley and Perris, in what is now the Lake Perris State Recreation Area. The park offers a variety of recreational activities. Because of this and the lake's proximity to major population centers, it is very crowded during the summer months.
The Nimbus Dam is a base load hydroelectric dam on the American River near Folsom, California. Approximately 8,700 acre-feet (10,700 dam3) of water is retained by the dam. It is responsible for the impoundment of water from the American River to create the Lake Natoma reservoir. The dam stands 87 feet and spans 1,093 feet. The Nimbus powerplant consists of two generators. Each generator produces enough electrical power to power over 200,000 100-watt light bulbs, about 15,500 kilowatts of electrical power. Nimbus Dam consists of 18 radial gates, each with their own gate bays. These 18 gates today are the ones that were completed in 1955 along with the rest of the dam. Of the eighteen gates, four of them have had their coating system replaced. This protects the gates from a faster rate of corrosion. The other fourteen gates have the original coating.
Silverwood Lake is a large reservoir in San Bernardino County, California, United States, located on the West Fork Mojave River, a tributary of the Mojave River in the San Bernardino Mountains. It was created in 1971 as part of the State Water Project by the construction of the Cedar Springs Dam as a forebay on the 444 mi (715 km) long California Aqueduct, and has a capacity of 73,000 acre⋅ft (90,000,000 m3).
Folsom Dam is a concrete gravity dam on the American River of Northern California in the United States, about 25 mi (40 km) northeast of Sacramento. The dam is 340 ft (100 m) high and 1,400 ft (430 m) long, flanked by earthen wing dams. It was completed in 1955, and officially opened the following year.
Lake Pillsbury is a lake in the Mendocino National Forest of Lake County, California, created from the Eel River and Hull Mountain watershed by Scott Dam. Elevation is 1,818 ft (554 m) with 65 mi (105 km) of shoreline and covering 2,003 acres (811 ha). Activities in the Lake Pillsbury Recreation Area include powerboating, fishing, swimming, sailing, picnicking, hiking and hang gliding. There are two main access roads to the lake. At the north end of the lake is a small gravel airstrip. Over 400 homes including National Forest Recreational Residences ring the lake.
French Meadows Reservoir is a manmade lake 36 miles (58 km) northeast of Foresthill, California, United States on the Middle Fork of the American River. The reservoir is 2.9 miles (4.7 km) long, 0.6-mile (0.97 km) wide, with 7.3 miles (11.7 km) of shoreline.
The American River is a 30-mile (50 km)-long river in California that runs from the Sierra Nevada mountain range to its confluence with the Sacramento River in downtown Sacramento. Via the Sacramento River, it is part of the San Francisco Bay watershed. This river is fed by the melting snowpack of the Sierra Nevada and its many headwaters and tributaries, including the North Fork American River, the Middle Fork American River, and the South Fork American River.
The Nimbus Fish Hatchery is located in eastern Sacramento County, built on the downstream side of the Nimbus Dam. It is one of the 21 fish hatcheries the California Department of Fish and Wildlife oversees. Chinook salmon and steelhead are raised, and about 4 million Chinook salmon and 430,000 steelhead released each year.