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2017 Oroville Dam Crisis
In February 2017, heavy rainfall damaged Oroville Dam's main and emergency spillways, prompting the evacuation of more than 180,000 people living downstream along the Feather River and the relocation of a fish hatchery. Heavy rainfall during the 2017 California floods damaged the main spillway on February 7, so the California Department of Water Resources stopped the spillway flow to assess the damage and contemplate its next steps. The rain eventually raised the lake level until it flowed over the emergency spillway, even after the damaged main spillway was reopened. As water flowed over the emergency spillway, headward erosion threatened to undermine and collapse the concrete weir, which could have sent a 30-foot (10 m) wall of water into the Feather River below and flooded communities downstream. No collapse occurred, but the water further damaged the main spillway and eroded the bare slope of the emergency spillway. Oroville Dam, an important part of the California State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oroville Dam
Oroville Dam is an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the Sierra Nevada foothills east of the Sacramento Valley. At 770 feet (235 m) high, it is the tallest dam in the U.S. and serves mainly for water supply, hydroelectricity generation, and flood control. The dam impounds Lake Oroville, the second-largest reservoir in California, capable of storing more than . Built by the California Department of Water Resources, Oroville Dam is one of the key features of the California State Water Project (SWP), one of two major projects passed that set up California's statewide water system. Construction was initiated in 1961, and despite numerous difficulties encountered during its construction, including multiple floods and a major train wreck on the rail line used to transport materials to the dam site, the embankment was topped out in 1967 and the entire project was ready for use in 1968. The dam began to generate electricit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Control
Flood control methods are used to reduce or prevent the detrimental effects of flood waters."Flood Control", MSN Encarta, 2008 (see below: Further reading). Flood relief methods are used to reduce the effects of flood waters or high water levels. Flooding can be caused by a mix of both natural processes, such as extreme weather upstream, and human changes to waterbodies and runoff. Though building hard infrastructure to prevent flooding, such as flood walls, can be effective at managing flooding, increased best practice within landscape engineering is to rely more on soft infrastructure and natural systems, such as marshes and flood plains, for handling the increase in water. For flooding on coasts, coastal management practices have to not only handle changes water flow, but also natural processes like tides. Flood control and relief is a particularly important part of climate change adaptation and climate resilience, both sea level rise and changes in the weather (climate cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OROVILLE DAM 6
Oroville may refer to: * Oroville, California, United States * Oroville, Washington, United States ;Other uses * Lake Oroville, in Butte County, California, USA * Oroville Dam, in Butte County, California, USA * Oroville Municipal Airport, in Butte County, California, USA See also *Oraville (other) *Orville (other) *Auroville Auroville (; City of Dawn) is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Pondicherry in India. It was founded in 1968 by Mirra Alfassa (known as "the Mo ..., experimental community in India {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OROVILLE DAM 5
Oroville may refer to: * Oroville, California, United States * Oroville, Washington, United States ;Other uses * Lake Oroville, in Butte County, California, USA * Oroville Dam, in Butte County, California, USA * Oroville Municipal Airport, in Butte County, California, USA See also *Oraville (other) *Orville (other) *Auroville Auroville (; City of Dawn) is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Pondicherry in India. It was founded in 1968 by Mirra Alfassa (known as "the Mo ..., experimental community in India {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OROVILLE DAM 4
Oroville may refer to: * Oroville, California, United States * Oroville, Washington, United States ;Other uses * Lake Oroville, in Butte County, California, USA * Oroville Dam, in Butte County, California, USA * Oroville Municipal Airport, in Butte County, California, USA See also *Oraville (other) *Orville (other) *Auroville Auroville (; City of Dawn) is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Pondicherry in India. It was founded in 1968 by Mirra Alfassa (known as "the Mo ..., experimental community in India {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OROVILLE DAM 3
Oroville may refer to: * Oroville, California, United States * Oroville, Washington, United States ;Other uses * Lake Oroville, in Butte County, California, USA * Oroville Dam, in Butte County, California, USA * Oroville Municipal Airport, in Butte County, California, USA See also *Oraville (other) *Orville (other) *Auroville Auroville (; City of Dawn) is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Pondicherry in India. It was founded in 1968 by Mirra Alfassa (known as "the Mo ..., experimental community in India {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OROVILLE DAM 2
Oroville may refer to: * Oroville, California, United States * Oroville, Washington, United States ;Other uses * Lake Oroville, in Butte County, California, USA * Oroville Dam, in Butte County, California, USA * Oroville Municipal Airport, in Butte County, California, USA See also *Oraville (other) *Orville (other) *Auroville Auroville (; City of Dawn) is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Pondicherry in India. It was founded in 1968 by Mirra Alfassa (known as "the Mo ..., experimental community in India {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OROVILLE DAM 1
Oroville may refer to: * Oroville, California, United States * Oroville, Washington, United States ;Other uses * Lake Oroville, in Butte County, California, USA * Oroville Dam, in Butte County, California, USA * Oroville Municipal Airport, in Butte County, California, USA See also *Oraville (other) *Orville (other) *Auroville Auroville (; City of Dawn) is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Pondicherry in India. It was founded in 1968 by Mirra Alfassa (known as "the Mo ..., experimental community in India {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oroville Dam
Oroville Dam is an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the Sierra Nevada foothills east of the Sacramento Valley. At 770 feet (235 m) high, it is the tallest dam in the U.S. and serves mainly for water supply, hydroelectricity generation, and flood control. The dam impounds Lake Oroville, the second-largest reservoir in California, capable of storing more than . Built by the California Department of Water Resources, Oroville Dam is one of the key features of the California State Water Project (SWP), one of two major projects passed that set up California's statewide water system. Construction was initiated in 1961, and despite numerous difficulties encountered during its construction, including multiple floods and a major train wreck on the rail line used to transport materials to the dam site, the embankment was topped out in 1967 and the entire project was ready for use in 1968. The dam began to generate electricit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Energy Regulatory Commission
The Federal Energy Regulatory Commission (FERC) is the United States federal agency that regulates the transmission and wholesale sale of electricity and natural gas in interstate commerce and regulates the transportation of oil by pipeline in interstate commerce. FERC also reviews proposals to build interstate natural gas pipelines, natural gas storage projects, and liquefied natural gas (LNG) terminals, in addition to licensing non-federal hydropower projects. FERC is composed of five commissioners who are nominated by the U.S. president and confirmed by the U.S. Senate. There may be no more than three commissioners of one political party serving on the commission at any given time. Primary duties The responsibilities of FERC include the following: * Regulating the transmission and sale of natural gas for resale in interstate commerce; * Regulating the transmission of oil by pipelines in interstate commerce; * Regulating the transmission and wholesale sales of electricity i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mean Sea Level
There are several kinds of mean in mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ..., especially in statistics. Each mean serves to summarize a given group of data, often to better understand the overall value (magnitude (mathematics), magnitude and sign (mathematics), sign) of a given data set. For a data set, the ''arithmetic mean'', also known as "arithmetic average", is a measure of central tendency of a finite set of numbers: specifically, the sum of the values divided by the number of values. The arithmetic mean of a set of numbers ''x''1, ''x''2, ..., x''n'' is typically denoted using an overhead bar, \bar. If the data set were based on a series of observations obtained by sampling (statistics), sampling from a statistical population, the arithmetic mean is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tainter Gate
The Tainter gate is a type of radial arm floodgate used in dams and canal locks to control water flow. It is named for Wisconsin structural engineer Jeremiah Burnham Tainter. A side view of a Tainter gate resembles a slice of pie with the curved part of the piece facing the source or upper pool of water and the tip pointing toward the destination or lower pool. The curved face or skinplate of the gate takes the form of a wedge section of cylinder. The straight sides of the pie shape, the trunnion arms, extend back from each end of the cylinder section and meet at a trunnion which serves as a pivot point when the gate rotates. Pressure forces on a submerged body act perpendicular to the body's surface. The design of the Tainter gate results in every pressure force acting through the centre of the imaginary circle of which the gate is a section, so that all resulting pressure force acts through the pivot point of the gate, making construction and design easier. When a Tain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
