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Bell Creek (Southern California)
Bell Creek (also known as Escorpión Creek) is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed March 16, 2011 tributary of the Los Angeles River, in the Simi Hills of Ventura County and the San Fernando Valley of Los Angeles County and City, in Southern California. The confluence marks the ''"headwaters"'' of the Los Angeles River, .t) and Bell Creek (right) join to form the Los Angeles RiverThe initial headwater feeder-streams begin in the Simi Hills in Ventura County from 90% of the Rocketdyne Santa Susana Field Laboratory (SSFL) property as its watershed, leaving the site with toxic substances and radionuclide contamination via culvert outfalls, aquifer seeps and springs, and surface runoff. It then flows as a creek southeast through Bell Canyon (the community and geographic feature), Bell Canyon Park, and El Escorpión Park in a natural stream bed. It then is altered to flow in a concrete channel. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County and western Los Angeles County, of southern California, United States. Geography The Simi Hills are aligned east-west and run for , and average around north-south. The Simi Hills are part of the central Transverse Ranges System. They lie almost entirely within southeastern Ventura County, with some southern and eastern foothills within western Los Angeles County. The Simi Hills are on the western edge of the San Fernando Valley. The Simi Valley lies to the north, and the Conejo Valley lies to the southwest. The San Fernando Valley communities of Chatsworth, West Hills, and Woodland Hills are in the eastern hills and adjacent valley floor in Los Angeles city and county. The cities of Agoura Hills and Westlake Village are also located in Los Angeles County, generally southwest of the Simi Hills. The cities of Thousand Oaks (to the west) and Simi Valley city (to the north) are in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquifer
An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characteristics. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Related terms include aquitard, which is a bed of low permeability along an aquifer, and aquiclude (or ''aquifuge''), which is a solid, impermeable area underlying or overlying an aquifer, the pressure of which could create a confined aquifer. The classification of aquifers is as follows: Saturated versus unsaturated; aquifers versus aquitards; confined versus unconfined; isotropic versus anisotropic; porous, karst, or fractured; transboundary aquifer. Challenges for using groundwater include: overdrafting (extracting groundwater beyond the Dynamic equilibrium, equilibrium yield of the aquifer), groundwater-related subsidence of land, gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arroyo Calabasas
Arroyo Calabasas (also known as Calabasas Creek) is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed March 16, 2011 tributary of the Los Angeles River, in the southwestern San Fernando Valley area of Los Angeles County in California. Route The stream begins with the merging of: Dry Canyon Creek from a Santa Monica Mountains watershed and McCoy Canyon Creek from a Simi Hills (Hidden Hills and Upper Las Virgenes Canyon Open Space Preserve) watershed, near the Leonis Adobe in the town of Calabasas. Arroyo Calabasas flows northeast through Woodland Hills and Canoga Park. In Canoga Park it joins Bell Creek, directly east of Canoga Park High School beside Vanowen Avenue. The confluence marks the ''"headwaters"'' of the Los Angeles River, . The flow of Arroyo Calabasas is entirely encased in a concrete flood control channel. Crossings From mouth to source (year built in parentheses): *Vanowen Street (1964) * We ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canoga Park, Los Angeles
Canoga Park is a neighborhood in the San Fernando Valley region of the City of Los Angeles, California. Before the Mexican–American War, the district was part of a rancho, and after the American victory it was converted into wheat farms and then subdivided, with part of it named Owensmouth as a town founded in 1912. It joined Los Angeles in 1917 and was renamed Canoga Park on March 1, 1931, after Canoga, New York. History Pre-American history The area of present-day Canoga Park was the homeland of Native Americans in the Tongva-Fernandeño and Chumash-Venturaño tribes, that lived in the Simi Hills and along to the tributaries of the Los Angeles River. They traded with the north Valley Tataviam-Fernandeño people. Native American civilizations inhabited the Valley for an estimated 8,000 years. Their culture left the Burro Flats Painted Cave nearby. From 1797 to 1846, the area was part of Mission San Fernando Rey de España (Mission San Fernando). After the Mexican War of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Hills, Los Angeles
West Hills is a suburban / residential community in the western San Fernando Valley region of the City of Los Angeles, California. The percentage of residents aged 35 and older is among the highest in Los Angeles County. The neighborhood was formerly the home of many Native American tribes, and during the early Spanish and Mexican era was part of the Mission San Fernando Rey de España. In the American era, West Hills was part of Owensmouth, which was renamed Canoga Park, Los Angeles, Canoga Park in 1930. West Hills was established in western Canoga Park and retained its present name in 1987. Historic landmarks and many city parks are to be found within the community, as are commercial districts, a business district, and religious establishments. Two private high schools are among the 13 schools within West Hills. Geography Location West Hills (formerly joined with Canoga Park) is located in the western San Fernando Valley in Los Angeles County and about 60 minutes (depending o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Control Channel
Flood control channels are large and empty basins which let water flow in and out (except during flooding) or dry channels that run below the street levels of some larger cities, so that if and when a flood occurs, the water will run into these channels, and eventually drain into a river or other body of water. Flood channels are sometimes built on the former courses of waterways as a way to reduce flooding. Levees Flood control channels are not to be confused with watercourses which are simply confined between levees. These structures may be made entirely of concrete, with concrete sides and an exposed bottom, with riprap sides and an exposed bottom, or completely unlined. They often contain grade control sills or weirs to prevent erosion and maintain a level streambed. Distribution By definition, flood control channels range from the size of a street gutter to a few hundred or even a few thousand feet wide in some rare cases. Flood control channels are found in most heavily de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stream Bed
A stream bed or streambed is the bottom of a stream or river (bathymetry) or the physical confine of the normal water flow (Channel (geography), channel). The lateral confines or channel margins are known as the stream Bank (geography), banks or river banks, during all but flood stage. Under certain conditions a river can branch from one stream bed to multiple stream beds. A flood occurs when a stream overflows its banks and flows onto its flood plain. As a general rule, the bed is the part of the stream channel, channel up to the normal water line, and the banks are that part above the normal water line. However, because water flow varies, this differentiation is subject to local interpretation. Usually, the bed is kept clear of terrestrial vegetation, whereas the banks are subjected to water flow only during unusual or perhaps infrequent high water stages and therefore might support vegetation some or much of the time. The nature of any stream bed is always a function of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Escorpión Park
El Escorpión Park is a three-acre (12,000 m²) park located in the Simi Hills of the western San Fernando Valley, in the West Hills district of Los Angeles, California. The park contains the geographic landmark known as Escorpión Peak or Castle Peak (''kas'ele'ew'' picacho), a 1,475-foot-tall (450 m) rocky peak seen from most parts of the park and the surrounding community. Access The El Escorpión Park entrance and parking is at the western end of Vanowen Street, west of Valley Circle Boulevard, in West Hills. The park is open from sunrise to sunset, 7 days a week. The trails are available for walking, hiking, rock climbing, mountain biking and equestrian use. Dogs are allowed on a leash. Rattlesnakes live in the area, requiring observant footfalls and handholds. Unauthorized motor vehicles and motorbikes are not permitted. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Canyon Park
Bell Canyon Park is a large open-space regional park located in the Simi Hills at the western end of the San Fernando Valley in West Hills, Los Angeles and Bell Canyon, California. Bell Creek, a primary tributary to the Los Angeles River, flows through the park with riparian zone vegetation along its natural banks. The geographic landmark Escorpión Peak (''Castle Peak'') is high above it to the south in adjacent El Escorpión Park. Trails Bell Canyon Park has trails along riparian Bell Creek and upstream beside the Bell Canyon community. Trails have junctions to connect with El Escorpión Park and Upper Las Virgenes Canyon Open Space Preserve and their miles of trail networks. A secondary route to the top of Escorpión Peak (Castle Peak) begins in the park also. The peak and both other parks are adjacent directly to the south of Bell Canyon Park. The trails are available for walking, hiking, mountain biking, rock climbing, and equestrian riding. Access Access to the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Canyon, California
Bell Canyon is an unincorporated community in eastern Ventura County, California, United States. Bell Canyon is a gated community in the Simi Hills with the main access through the Los Angeles community of West Hills and the western San Fernando Valley. Bell Canyon sits at an elevation of . The 2010 United States census reported Bell Canyon's population was 2,049. For statistical purposes, the United States Census Bureau has defined Bell Canyon as a census-designated place (CDP). According to a 2016 study, Bell Canyon is the seventh wealthiest community in the state of California with an annual median income of $230,000. Incomes are commonly upwards of millions of dollars a year. History Pre-20th century Chumash Native Americans lived in the canyon for around 8,000 years B.P. The Chumash had the village of Hu'wam here in the canyon on Bell Creek upstream from Escorpión Peak. It was multi-cultural, where Chumash, Tongva, and Tataviam peoples lived and traded together. Nearby i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stream
A stream is a continuous body of water, body of surface water Current (stream), flowing within the stream bed, bed and bank (geography), banks of a channel (geography), channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long large streams are usually called rivers, while smaller, less voluminous and more intermittent river, intermittent streams are known as streamlets, brooks or creeks. The flow of a stream is controlled by three inputs – surface runoff (from precipitation or meltwater), daylighting (streams), daylighted subterranean river, subterranean water, and surfaced groundwater (Spring (hydrology), spring water). The surface and subterranean water are highly variable between periods of rainfall. Groundwater, on the other hand, has a relatively constant input and is controlled more by long-term patterns of precipitation. The stream encompasses surface, subsurface and groundwater fluxes th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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