A reservoir is, most an enlarged natural or artificial lake, pond or impoundment created using a dam or lock to store water. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. Defined as a storage space for fluids, reservoirs may hold gasses, including hydrocarbons. Tank reservoirs elevated, or buried tanks. Tank reservoirs for water are called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum, below ground. Reservoir is most an enlarged natural or artificial lake. A dam constructed in a valley relies on the natural topography to provide most of the basin of the reservoir. Dams are located at a narrow part of a valley downstream of a natural basin; the valley sides act as natural walls, with the dam located at the narrowest practical point to provide strength and the lowest cost of construction.
In many reservoir construction projects, people have to be moved and re-housed, historical artifacts moved or rare environments relocated. Examples include the temples of Abu Simbel, the relocation of the village of Capel Celyn during the construction of Llyn Celyn, the relocation of Borgo San Pietro of Petrella Salto during the construction of Lake Salto. Construction of a reservoir in a valley will need the river to be diverted during part of the build through a temporary tunnel or by-pass channel. In hilly regions, reservoirs are constructed by enlarging existing lakes. Sometimes in such reservoirs, the new top water level exceeds the watershed height on one or more of the feeder streams such as at Llyn Clywedog in Mid Wales. In such cases additional side dams are required to contain the reservoir. Where the topography is poorly suited to a single large reservoir, a number of smaller reservoirs may be constructed in a chain, as in the River Taff valley where the Llwyn-on, Cantref and Beacons Reservoirs form a chain up the valley.
Coastal reservoirs are fresh water storage reservoirs located on the sea coast near the river mouth to store the flood water of a river. As the land based reservoir construction is fraught with substantial land submergence, coastal reservoir is preferred economically and technically since it does not use scarce land area. Many coastal reservoirs were constructed in Europe. Saemanguem in South Korea, Marina Barrage in Singapore and Plover Cove in China, etc are few existing coastal reservoirs. Where water is pumped or siphoned from a river of variable quality or size, bank-side reservoirs may be built to store the water; such reservoirs are formed by excavation and by building a complete encircling bund or embankment, which may exceed 6 km in circumference. Both the floor of the reservoir and the bund must have an impermeable lining or core: these were made of puddled clay, but this has been superseded by the modern use of rolled clay; the water stored in such reservoirs may stay there for several months, during which time normal biological processes may reduce many contaminants and eliminate any turbidity.
The use of bank-side reservoirs allows water abstraction to be stopped for some time, when the river is unacceptably polluted or when flow conditions are low due to drought. The London water supply system is one example of the use of bank-side storage: the water is taken from the River Thames and River Lee. Service reservoirs store treated potable water close to the point of distribution. Many service reservoirs are constructed as water towers as elevated structures on concrete pillars where the landscape is flat. Other service reservoirs can be entirely underground in more hilly or mountainous country. In the United Kingdom, Thames Water has many underground reservoirs, sometimes called cisterns, built in the 1800s, most of which are lined with brick. A good example is the Honor Oak Reservoir in London, constructed between 1901 and 1909; when it was completed it was said to be the largest brick built underground reservoir in the world and it is still one of the largest in Europe. This reservoir now forms part of the southern extension of the Thames Water Ring Main.
The top of the reservoir is now used by the Aquarius Golf Club. Service reservoirs perform several functions, including ensuring sufficient head of water in the water distribution system and providing water capacity to out peak demand from consumers, enabling the treatment plant to run at optimum efficiency. Large service reservoirs can be managed to reduce the cost of pumping, by refilling the reservoir at times of day when energy costs are low. Circa 3 000 BC, the craters of extinct volcanoes in Arabia were used as reservoirs by farmers for their irrigation water. Dry climate and water scarcity in India led to early development of stepwells and water resource management techniques, including the building of a reservoir at Girnar in 3000 BC. Artificial lakes dating to the 5th century BC have been found in ancient Greece; the artificial Bhojsagar lake in present-day Madhya Pradesh state of India, constructed in the 11th century, covered 650 square kilometres. In Sri Lanka large reservoirs were created by ancient Sinhalese kings in order to save the water for irrigation.
The famous Sri Lankan king Pa
Bakersfield is a city in and the county seat of Kern County, United States. It covers about 151 sq mi near the southern end of the San Joaquin Valley and the Central Valley region. Bakersfield's population is around 380,000, making it the 9th-most populous city in California and the 52nd-most populous city in the nation; the Bakersfield–Delano Metropolitan Statistical Area, which includes all of Kern County, had a 2010 census population of 839,631, making it the 62nd-largest metropolitan area in the United States. The more built-up urban area that includes Bakersfield and areas around the city, such as East Bakersfield and Rosedale, has a population of over 520,000. Bakersfield is a charter city; the city is a significant hub for both oil production. Kern County is the most productive oil-producing county and the fourth-most productive agricultural county in the United States. Industries include natural gas and other energy extraction, mining, petroleum refining, distribution, food processing, corporate regional offices.
The city is the birthplace of the country music genre known as the Bakersfield sound. Archaeological evidence indicates the presence of Native American settlements dating back thousands of years; the Yokuts lived in lodges along the branches of the Kern River delta and hunted antelope, tule elk, bear and game birds. In 1776, Spanish missionary Father Francisco Garcés became the first European to explore the area. Owing to the remoteness and inaccessibility of the region, the Yokuts remained isolated until after the Mexican War of Independence, when Mexican settlers began to migrate to the area. Following the discovery of gold in California in 1848, settlers flooded into the San Joaquin Valley. In 1851, gold was discovered along the Kern River in the southern Sierra Nevada, in 1865, oil was discovered in the valley; the Bakersfield area, once a tule reed-covered marshland, was first known as Kern Island to the handful of pioneers, who built log cabins there in 1860. The area was subject to periodic flooding from the Kern River, which occupied what is now the downtown area, experienced outbreaks of malaria.
In 1862, disastrous floods swept away the original settlement founded in 1860 by the German-born Christian Bohna. Among those attracted to the area by the California gold rush was Thomas Baker, a lawyer and former colonel in the militia of Ohio, his home state. Baker moved to the banks of the Kern River in 1863, at what became known as Baker's Field, which became a stopover for travelers. By 1870, with a population of 600, what is now known as Bakersfield was becoming the principal town in Kern County. In 1873, Bakersfield was incorporated as a city, by 1874, it replaced the dying town of Havilah as the county seat. Alexander Mills was hired as the city marshal, a man one historian would describe as "... an old man by the time he became Marshal of Bakersfield, he walked with a cane. But he was a Kentuckian, a handy man with a gun, not lacking in initiative and resource when the mood moved him." Businessmen and others began to resent Mills, cantankerous and high-handed in his treatment of them.
Wanting to fire him but fearing reprisals, they came up with a scheme to disincorporate leaving him without an employer. According to local historian Gilbert Gia the city was failing to collect the taxes it needed for services. In 1876, the city voted to disincorporate. For the next 22 years, a citizen's council managed the community. By 1880, the town had a population of 801, by 1890, it had a population of 2,626. Migration from Texas, Louisiana and Southern California brought new residents, who were employed by the oil industry; the city reincorporated on January 11, 1898. On July 21, 1952, an earthquake struck at 4:52 am Pacific Daylight Time; the earthquake, which measured 7.5 on the moment magnitude scale and was felt from San Francisco to the Mexican border, destroyed the nearby communities of Tehachapi and Arvin. The earthquake's destructive force bent cotton fields into U shapes, slid a shoulder of the Tehachapi Mountains across all four lanes of the Ridge Route, collapsed a water tower creating a flash flood, destroyed the railroad tunnels in the mountain chain.
Bakersfield was spared. A large aftershock occurred on July 29, did minor architectural damage, but raised fears that the flow of the Friant-Kern Canal could be dangerously altered flooding the city and surrounding areas. Aftershocks, for the next month, had become normal to Bakersfield residents until, on August 22 at 3:42 pm, a 5.8 earthquake struck directly under the town's center in the most densely populated area of the southern San Joaquin Valley. Four people died in the aftershock, some of the town's historic structures sustained heavy damage. Between 1970 and 2010, Bakersfield grew 400%, making it one of the fastest-growing cities in California. Bakersfield's close proximity to mountain passes the Tejon Pass on Interstate 5 between the Los Angeles metropolis and the central San Joaquin Valley, has made the city a regional transportation hub. In 1990, Bakersfield was one of 10 U. S. communities to receive the All-America City Award from the National Civic League. In 2010, the Bakersfield MSA had a gross metropolitan product of $29.466 billion, making it the 73rd-largest metropolitan economy in the United States.
Bakersfield lies near the southern "horseshoe" end of the San Joaquin Valley, with the southern tip of the Sierra Nevada just to the east. The city limits extend to the Sequoia National Forest, at the foot of the Greenhorn Mountain Range and at the en
Fresno Yosemite International Airport
Fresno Yosemite International Airport, is a joint civil-military airport in Fresno, California. It is the primary commercial airport for the San Joaquin Valley and three national parks: Yosemite and Kings Canyon, it offers scheduled passenger flights to several major airline hubs in the United States and international service to Mexico. The facility opened in June 1942 as a military airfield; the airport is owned and operated by the city of Fresno and has two runways on a property spanning 1,728 acres. Its airport code'FAT' stands for "Fresno Air Terminal," a former name for the airport. Due to its central location within the state, the airport is home to several military, law enforcement and medical air units; the Fresno Air National Guard Base on the southeast corner of the airport is home to the 144th Fighter Wing of the California Air National Guard. The Fresno Air Attack Base on the eastern side of the airport supports aerial firefighting aircraft. Other government and military operators with facilities at the airport include the California Army National Guard, the California Highway Patrol, the Fresno County Sheriff's Office, the Fresno Police Department.
Fresno is home to a large operations base for SkyWest Airlines, the nation's largest regional airline. The Fresno Yosemite International Airport opened as a military airfield in June 1942, just six months after Japan's attack on Pearl Harbor, leading the United States to enter World War II; the new airfield was named Hammer Field and was used by the United States Army Air Forces as a training facility for the new pilots of the Fourth Air Force. It had a single northwest/southeast oriented runway with a length of 7,200 feet. Night fighter training, using Northrop P-61s, was moved to Hammer Field in January 1944 with the 481st Night Fighter Operational Training Group, replaced by the 319th Wing in May 1944. Training for the Bell P-59 Airacomet was added to the 319th mission in 1944, as well, confirmed Col. Ralph H. Snavely, commanding officer of the 319th Wing. At the time and commercial aviation used Chandler Field that had opened in November 1929. Chandler is 1.5 miles west on a small site. Less than a decade after it opened, it was clear that the small runway at Chandler would not be able to accommodate coming larger airliners.
After World War II, Hammer Field was inactivated by the Army Air Forces and the city of Fresno saw an opportunity to use the site to create a commercial airport much larger than Chandler Field. In 1946 the War Assets Administration reallocated the property to the city, which began construction on a passenger terminal on the northeast side of the airfield. In 1948, the newly renamed Fresno Air Terminal opened. Trans World Airlines and United Airlines flights to San Francisco/Oakland and Los Angeles moved from Chandler Field to the newly opened airport. Chandler Field was retained by the city of Fresno as a reliever airport and continues to operate as the Fresno Chandler Executive Airport. Strategic Air Command facilities for Convair B-36 operations were proposed for “Hammer Air Force Base”, but objections from the City of Fresno led them to be changed to Travis Air Force Base instead; the Fresno upgrade was projected to cost $22,303,000. The California Air National Guard moved to the airport in the 1950s and established the Fresno Air National Guard Base on the southeast corner of the property.
The guard built munition storage bunkers along the northern edge of the airport grounds. The 194th Fighter Squadron moved to the facility in late 1954, followed by the 144th Fighter Wing in 1957; as the guard moved in, a second parallel runway was constructed and opened to traffic in 1956. A new, larger passenger terminal started to come together in 1959 on the south side of the field; the main building has a baggage claim area, the central lobby, the ticketing area. Although renovated, that building has the same functions. From the central lobby, passengers used an underground tunnel to reach the open-air, remote concourse where they boarded planes from ground level; the current air traffic control tower was built around the same time as the terminal and opened shortly after in 1961. Pacific Air Lines was first to schedule jets to Fresno, Boeing 727-100s) in 1966. United was the dominant carrier at the airport in the mid-1970s, operating daily DC-8s to Denver and jets to San Francisco and Los Angeles.
Hughes Airwest and PSA jets served the airport. The first significant expansion to the passenger terminal came in 1978 when a concourse was built straight out from the central lobby; this building, unlike the original remote concourse, was enclosed and climate controlled. The airport saw significant down-gauging following airline deregulation. By 1983 United had ended intrastate flights from Fresno, the airport saw turboprops of smaller carriers. Delta operated mainline jets to Los Angeles, Salt Lake City and Reno in the mid 1990s, but in 1999, the only mainline jets at Fresno were American flights to Dallas/Fort Worth. Fresno has been the headquarters for at least three airlines. In the mid-1980s, Far West Airlines was founded in Fresno and used the airport as a small intrastate hub serving Burbank, Los Angeles, Oakland, Orange County and San Jose. Air 21 was founded in Fresno in January 1994 and operated service between several western cities before ceasing operations in January 1997. Allegiant Air was founded in Fresno in January 1997, its headquarters were located in the city until it declared bankruptcy in 2000, the new CEO moved its headquarters to a suburb of Las Vegas.
In 1996 the airport's name was changed from Fresno Air Terminal to Fresno Yosemite Int
Henry E. Huntington
Henry Edwards Huntington was an American railroad magnate and collector of art and rare books. Huntington settled in Los Angeles, where he owned the Pacific Electric Railway as well as substantial real estate interests. In addition to being a businessman and art collector, Huntington was a major booster for Los Angeles in the late 19th and early 20th centuries. In the city of San Marino, many places are named after him, including a school, a road and a library. Born in Oneonta, New York, Henry Huntington was the nephew of Collis P. Huntington, one of The Big Four, instrumental in creating the Central Pacific Railroad, one of the two railroads that built the transcontinental railway in 1869. Henry Huntington held several executive positions alongside his uncle with the Southern Pacific. After Collis Huntington's death, Henry Huntington assumed Collis Huntington's leadership role with Newport News Shipbuilding and Drydock Company in Virginia, married his widow Arabella Huntington, his divorce from his first wife Mary Alice Prentice, birth sister of his Uncle Collis' adopted daughter, in 1910 and marriage to Arabella in 1913 after Mary Alice's death shocked San Francisco society.
He had none with Arabella. Arabella's son Archer, from her prior marriage from which she was widowed, had earlier been adopted by Collis Huntington. In 1898, in friendly competition with his uncle's Southern Pacific, Huntington bought the narrow gauge city-oriented Los Angeles Railway, known as the'Yellow Car' system. In 1901, Huntington formed the sprawling interurban, standard gauge Pacific Electric Railway, known as the'Red Car' system, centered at 6th and Main Streets in Los Angeles. Huntington succeeded in this competition by providing passenger friendly streetcars on 24/7 schedules, which the railroads could not match; this was facilitated by the boom in Southern California land development, where housing was built in places such as Orange County's Huntington Beach, a Huntington-sponsored development, streetcars served passenger needs that the railroads had not considered. Connectivity to Downtown Los Angeles made such suburbs feasible. By 1910, the Huntington trolley systems spanned 1,300 miles of southern California.
At its greatest extent, the system contained over 20 streetcar lines and 1,250 trolleys, most running through the core of Los Angeles and serving such nearby neighborhoods as the Crenshaw district, West Adams, Echo Park, Hancock Park, Exposition Park, Boyle Heights and Lincoln Heights. The system integrated the 1902 acquisition, the Mount Lowe Scenic Railway above Altadena, California in the San Gabriel Mountains. In 1905 Huntington, A. Kingsley Macomber, William R. Staats developed the Oak Knoll subdivision, located to the west of his San Marino estate in the oak-covered hilly terrain near Pasadena. In 1906, along with Frank Miller, owner of the Mission Inn, Charles M. Loring, formed the Huntington Park Association, with the intent to purchase Mount Rubidoux in Riverside, build a road to the summit, develop the hill as a park to benefit the city of Riverside; the road was completed in February 1907. The property was donated to the city of Riverside by the heirs of Frank Miller, today the hill is a 161-acre city park.
Huntington was a Life Member of the Sons of the Revolution in the State of California. Huntington retired from business in 1916. In 1927 Henry E. Huntington died in Philadelphia, he and Arabella are buried, with a large monument, in the Gardens of the Huntington Library in San Marino, California. The Huntington Hotel was named Hotel Wentworth when it opened on February 1, 1907. Financial problems and a disappointing first season forced it to close indefinitely. Henry Huntington purchased the Wentworth in 1911, it reopened in 1914, transformed into a winter resort. The 1920s were prosperous for the hotel, as Midwestern and Eastern entrepreneurs discovered California's warm winter climate; the hotel's reputation for fine service began with long-time general manager and owner Stephen W. Royce. By 1926, the hotel's success prompted Royce to open the property year-round; the "golden years" ended with the stock market crash and the Great Depression of the late 1920s and early 1930s. By the end of the 1930s the hotel was vibrant again.
When World War II began, all reservations were cancelled and the hotel was rented to the Army for $3,000 a month. Following the war, the Huntington's fortunes improved again. In 1954 Stephen Royce sold the hotel to the Sheraton Corporation, serving as general manager until his retirement in 1969; the hotel operated until 1985. The structure was built of un-reinforced concrete in 1906. After a two-and-a-half year major renovation, the hotel reopened in March 1991 as the Ritz Carlton Huntington Hotel and Spa; the hotel completed a $19 million renovation in January 2006. Huntington left a prominent legacy with the Huntington Library, Art Collections and Botanical Gardens on his former estate in San Marino near Pasadena. Other legacies in California include the cities of Huntington Beach and Huntington Park, as well as Huntington Lake. In greater Los Angeles are the Huntington Hospital in Pasadena, Henry E. Huntington Middle School in San Marino, the grand boulevard, Huntington Drive, running eastbound from downtown Los Angeles.
Its landscaped central parkway was the right-of-way for the Norther
Sierra Nevada (U.S.)
The Sierra Nevada is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies in Nevada; the Sierra Nevada is part of the American Cordillera, a chain of mountain ranges that consists of an continuous sequence of such ranges that form the western "backbone" of North America, Central America, South America and Antarctica. The Sierra runs 400 miles north-to-south, is 70 miles across east-to-west. Notable Sierra features include the largest alpine lake in North America; the Sierra is home to three national parks, twenty wilderness areas, two national monuments. These areas include Yosemite and Kings Canyon National Parks; the character of the range is shaped by its ecology. More than one hundred million years ago during the Nevadan orogeny, granite formed deep underground; the range started to uplift four million years ago, erosion by glaciers exposed the granite and formed the light-colored mountains and cliffs that make up the range.
The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones. Uplift continues due to faulting caused by tectonic forces, creating spectacular fault block escarpments along the eastern edge of the southern Sierra; the Sierra Nevada has a significant history. The California Gold Rush occurred in the western foothills from 1848 through 1855. Due to inaccessibility, the range was not explored until 1912; the Sierra Nevada lies in Central and Eastern California, with a small but important spur extending into Nevada. West-to-east, the Sierra Nevada's elevation increases from 1,000 feet in the Central Valley to heights of about 14,000 feet at its crest 50–75 miles to the east; the east slope forms the steep Sierra Escarpment. Unlike its surroundings, the range receives a substantial amount of snowfall and precipitation due to orographic lift; the Sierra Nevada's irregular northern boundary stretches from the Susan River and Fredonyer Pass to the North Fork Feather River.
It represents where the granitic bedrock of the Sierra Nevada dives below the southern extent of Cenozoic igneous surface rock from the Cascade Range. It is bounded on the west by California's Central Valley and on the east by the Basin and Range Province; the southern boundary is at Tehachapi Pass. Physiographically, the Sierra is a section of the Cascade-Sierra Mountains province, which in turn is part of the larger Pacific Mountain System physiographic division; the California Geological Survey states that "the northern Sierra boundary is marked where bedrock disappears under the Cenozoic volcanic cover of the Cascade Range." The range is drained on its western slope by the Central Valley watershed, which discharges into the Pacific Ocean at San Francisco. The northern third of the western Sierra is part of the Sacramento River watershed, the middle third is drained by the San Joaquin River; the southern third of the range is drained by the Kings, Kaweah and Kern rivers, which flow into the endorheic basin of Tulare Lake, which overflows into the San Joaquin during wet years.
The eastern slope watershed of the Sierra is much narrower. From north to south, the Susan River flows into intermittent Honey Lake, the Truckee River flows from Lake Tahoe into Pyramid Lake, the Carson River runs into Carson Sink, the Walker River into Walker Lake. Although none of the eastern rivers reach the sea, many of the streams from Mono Lake southwards are diverted into the Los Angeles Aqueduct which provides water to Southern California; the height of the mountains in the Sierra Nevada increases from north to south. Between Fredonyer Pass and Lake Tahoe, the peaks range from 5,000 feet to more than 9,000 feet; the crest near Lake Tahoe is 9,000 feet high, with several peaks approaching the height of Freel Peak. Farther south, the highest peak in Yosemite National Park is Mount Lyell; the Sierra rises to 14,000 feet with Mount Humphreys near Bishop, California. Near Lone Pine, Mount Whitney is at 14,505 feet, the highest point in the contiguous United States. South of Mount Whitney, the elevation of the range dwindles.
The crest elevation is 10,000 feet near Lake Isabella, but south of the lake, the peaks reach to only a modest 8,000 feet. There are several notable geographical features in the Sierra Nevada: Lake Tahoe is a large, clear freshwater lake in the northern Sierra Nevada, with an elevation of 6,225 ft and an area of 191 sq mi. Lake Tahoe lies between a spur of the Sierra. Hetch Hetchy Valley, Yosemite Valley, Kings Canyon, Kern Canyon are examples of many glacially-scoured canyons on the west side of the Sierra. Yosemite National Park is filled with notable features such as waterfalls, granite domes, high mountains and meadows. Groves of Giant Sequoia