81-616: 40°45′18.75″N 111°32′18.56″W / 40.7552083°N 111.5384889°W / 40.7552083; -111.5384889 The DC Mountain Lab was a private snowboard park in Park City, Utah , known as a research and development center. As of 2011, the property is being put up for sale. The property is taken up mostly by the snowboard park, but there is also a house there. It was owned and operated by DC Shoes president and co-founder Ken Block. The Lab has its own snowcat for building jumps and grooming
162-485: A humid continental climate ( Köppen : Dfb ), though higher elevations within city limits may experience a subalpine ( Dfc ) or alpine ( ET ) climate. According to estimates from the U.S. Census Bureau, as of 2016, there were 8,299 full-time residents in Park City. The racial makeup of the county was 78.8% non-Hispanic White , 1.1% Black , 0.1% Native American , 2.2% Asian , and 1.0% from two or more races. 16.8% of
243-537: A block for migrating fish, trapping them in one area, producing food and a habitat for various water-birds. They can also flood various ecosystems on land and may cause extinctions. Creating reservoirs can alter the natural biogeochemical cycle of mercury . After a reservoir's initial formation, there is a large increase in the production of toxic methylmercury (MeHg) via microbial methylation in flooded soils and peat. MeHg levels have also been found to increase in zooplankton and in fish. Dams can severely reduce
324-791: A chain up the valley. Coastal reservoirs are fresh water storage reservoirs located on the sea coast near a river mouth to store the flood water of a river. As the land-based reservoir construction is fraught with substantial land submergence, coastal reservoirs are preferred economically and technically since they do not use scarce land area. Many coastal reservoirs were constructed in Asia and Europe. Saemanguem in South Korea, Marina Barrage in Singapore, Qingcaosha in China, and Plover Cove in Hong Kong are
405-636: A conventional oil-fired thermal generation plant. For instance, In 1990, the impoundment behind the Balbina Dam in Brazil (inaugurated in 1987) had over 20 times the impact on global warming than would generating the same power from fossil fuels, due to the large area flooded per unit of electricity generated. Another study published in the Global Biogeochemical Cycles also found that newly flooded reservoirs released more carbon dioxide and methane than
486-668: A culture of expenditure, adventure, wealth, and this is included in their promotional material. To this day, there are still more than 1,000 miles (1,600 km) of old silver-mine workings and tunnels beneath the slopes at Park City Mountain Resort and neighboring Deer Valley. On Main Street, 64 Victorian buildings are listed in the National Register of Historic Places. There are many remaining mine buildings, mine shafts (most blocked off from outsiders with large steel doors), and hoists, including
567-529: A drop of water seep into the ocean without benefiting mankind." He created the reservoir named Parakrama Samudra ("sea of King Parakrama"). Vast artificial reservoirs were also built by various ancient kingdoms in Bengal, Assam, and Cambodia. Many dammed river reservoirs and most bank-side reservoirs are used to provide the raw water feed to a water treatment plant which delivers drinking water through water mains. The reservoir does not merely hold water until it
648-525: A few such 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 usually formed partly by excavation and partly by building a complete encircling bund or embankment , which may exceed 6 km (4 miles) in circumference. Both the floor of the reservoir and the bund must have an impermeable lining or core: initially these were often made of puddled clay , but this has generally been superseded by
729-455: A high-level reservoir is filled with water using high-performance electric pumps at times when electricity demand is low, and then uses this stored water to generate electricity by releasing the stored water into a low-level reservoir when electricity demand is high. Such systems are called pump-storage schemes. Reservoirs can be used in a number of ways to control how water flows through downstream waterways: Reservoirs can be used to balance
810-479: A household in the city was $ 65,800, and the median income for a family was $ 77,137. Males had a median income of $ 40,032 versus $ 26,341 for females. The per capita income for the city was $ 45,164. About 5.3% of families and 10.0% of the population were below the poverty line , including 11.6% of those under age 18 and 6.6% of those age 65 or over. Park City is home to Park City Mountain Resort , Canyons Village at Park City , Deer Valley Resort , Woodward Park City,
891-570: A loss in both quantity and quality of water necessary for maintaining ecological balance and pose a risk of increasing severity and duration of droughts due to climate change. In summary, they consider it a misadaptation to climate change. Proponents of reservoirs or substitution reserves, on the other hand, see them as a solution for sustainable agriculture while waiting for a truly durable agricultural model. Without such reserves, they fear that unsustainable imported irrigation will be inevitable. They believe that these reservoirs should be accompanied by
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#1732859478254972-419: A narrow valley or canyon may cover relatively little vegetation, while one situated on a plain may flood a great deal of vegetation. The site may be cleared of vegetation first or simply flooded. Tropical flooding can produce far more greenhouse gases than in temperate regions. The following table indicates reservoir emissions in milligrams per square meter per day for different bodies of water. Depending upon
1053-592: A reservoir is called the "conservation pool". In the United Kingdom, "top water level" describes the reservoir full state, while "fully drawn down" describes the minimum retained volume. There is a wide variety of software for modelling reservoirs, from the specialist Dam Safety Program Management Tools (DSPMT) to the relatively simple WAFLEX , to integrated models like the Water Evaluation And Planning system (WEAP) that place reservoir operations in
1134-720: A river valley, with the potential to wash away towns and villages and cause considerable loss of life, such as the devastation following the failure of containment at Llyn Eigiau which killed 17 people. (see also List of dam failures ) A notable case of reservoirs being used as an instrument of war involved the British Royal Air Force Dambusters raid on Germany in World War II (codenamed " Operation Chastise " ), in which three German reservoir dams were selected to be breached in order to damage German infrastructure and manufacturing and power capabilities deriving from
1215-940: A series of film and TV production classes, and hosts "The Miner Film Festival" each year for students to enter their films and show them at the Eccles Center. The portion of the city that is in Wasatch County is served by the Wasatch School District . The Park City Library is also located in Park City, Utah, and features various attractions. Park City is home to the Swaner EcoCenter , which also serves as an extension and distance education center for Utah State University . Park City operates its own free intra-city transit system (with additional service to limited areas of Summit and Wasatch County northeast of town provided by High Valley Transit ). Routes include service to
1296-574: A territorial project that unites all water stakeholders with the goal of preserving and enhancing natural environments. Two main types of reservoirs can be distinguished based on their mode of supply. Circa 3000 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 other water resource management techniques, including
1377-643: Is 600,000 per year. This significant increase in visitors could be credited to promotional material that is distributed by the Utah Publicity and Tourist Council. Growth has accelerated in the last few decades, and Park City is now one of the most affluent resort towns in the United States. According to the Bureau of Economic and Business Research, in 2012 travel, tourism and recreation generated $ 7.4 billion in spending and $ 960.6 million in state and local tax revenue for
1458-564: Is a city in Utah , United States. The vast majority is in Summit County with some portions extending into Wasatch County . It is considered to be part of the Wasatch Back . The city is 32 miles (51 km) southeast of downtown Salt Lake City and 20 miles (32 km) from Salt Lake City's east edge of Sugar House along Interstate 80 . The population was 8,396 at the 2020 census . On average,
1539-471: Is a natural lake whose level was raised by a low dam and into which the River Dee flows or discharges depending upon flow conditions, as part of the River Dee regulation system . This mode of operation is a form of hydraulic capacitance in the river system. Many reservoirs often allow some recreational uses, such as fishing and boating . Special rules may apply for the safety of the public and to protect
1620-480: Is a water reservoir for agricultural use. They are filled using pumped groundwater , pumped river water or water runoff and are typically used during the local dry season. This type of infrastructure has sparked an opposition movement in France, with numerous disputes and, for some projects, protests, especially in the former Poitou-Charentes region where violent demonstrations took place in 2022 and 2023. In Spain, there
1701-437: Is also used technically to refer to certain forms of liquid storage, such the "coolant reservoir" that captures overflow of coolant in an automobile's cooling system. Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley and rely on the natural topography to provide most of the basin of the reservoir. These reservoirs can either be on-stream reservoirs , which are located on
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#17328594782541782-399: Is an enlarged lake behind a dam , usually built to store fresh water , often doubling for hydroelectric power generation . Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, excavating, or building any number of retaining walls or levees to enclose any area to store water. The term
1863-501: Is greater acceptance because all beneficiary users are involved in the implementation of the system. The specific debate about substitution reservoirs is part of a broader discussion related to reservoirs used for agricultural irrigation, regardless of their type, and a certain model of intensive agriculture. Opponents view these reservoirs as a monopolization of resources benefiting only a few, representing an outdated model of productive agriculture. They argue that these reservoirs lead to
1944-466: Is needed: it can also be the first part of the water treatment process. The time the water is held before it is released is known as the retention time . This is a design feature that allows particles and silts to settle out, as well as time for natural biological treatment using algae , bacteria and zooplankton that naturally live in the water. However natural limnological processes in temperate climate lakes produce temperature stratification in
2025-528: 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 even-out peak demand from consumers, enabling the treatment plant to run at optimum efficiency. Large service reservoirs can also be managed to reduce the cost of pumping by refilling the reservoir at times of day when energy costs are low. An irrigation reservoir
2106-455: Is served by The Park Record (the oldest continually published non-daily paper in Utah, and one of the oldest in the U.S.), TownLift (online news), and KPCW (a local NPR news/radio affiliate). The area was traveled by the early Mormon pioneers on their journey to where they settled and built Salt Lake City. One of their leaders, Parley P. Pratt , explored the canyon in 1848. He was given a charter
2187-419: Is stored in the reservoir. Any excess water can be spilled via a specifically designed spillway. Stored water may be piped by gravity for use as drinking water , to generate hydro-electricity or to maintain river flows to support downstream uses. Occasionally reservoirs can be managed to retain water during high rainfall events to prevent or reduce downstream flooding. Some reservoirs support several uses, and
2268-525: Is the local school district of the portion of Park City in Summit County (almost all of Park City). Park City High School is located at 1752 Kearns Blvd, Park City, Utah. Park City School District's size is in the middle of the other Utah school districts, with more than 4,500 students. It is also close to the state average ethnic minority composition. Of its students 17% are ethnic minorities—mostly of Hispanic heritage. The school provides its students with
2349-700: Is the main location of the United States' largest independent film festival, the Sundance Film Festival ; home of the United States Ski Team ; training center for members of the Australian Freestyle Ski Team ; the largest collection of factory outlet stores in northern Utah; the 2002 Olympic bobsled/skeleton/luge track at the Utah Olympic Park ; and golf courses. Some scenes from the 1994 film Dumb and Dumber were shot in
2430-410: Is the portion of the reservoir that can be used for flood control, power production, navigation , and downstream releases. In addition, a reservoir's "flood control capacity" is the amount of water it can regulate during flooding. The "surcharge capacity" is the capacity of the reservoir above the spillway crest that cannot be regulated. In the United States, the water below the normal maximum level of
2511-613: Is usually cooler than Salt Lake City as it lies mostly higher than 7,000 feet (2,100 m) above sea level , while Salt Lake City is situated at an elevation of about 4,300 feet (1,300 m). In 2011, the town was awarded a Gold-level Ride Center designation from the International Mountain Bicycling Association for its mountain bike trails, amenities and community. Park City Municipal, along with Basin Recreation manage bike trails in Park City. Park City
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2592-464: The 2034 Winter Olympics . Although they receive less snow and have a shorter ski season than do their counterparts in Salt Lake County , such as Snowbird resort, they are much easier to access. In 2015, Park City Ski Resort and Canyons resorts merged, creating the largest ski area in the U.S. In all, the resort boasts 17 slopes, 14 bowls, 300 trails and 22 miles (35 km) of lifts. The city
2673-573: The Canyons Village , Deer Valley Resort , Empire Pass, Jeremy Ranch Park & Ride lot, Kimball Junction , Park City Resort , Park Meadows, Pinebrook, Prospector Square, Silver Lake Village, Silver Springs, Silver Summit/Highland Estates, and Thaynes Canyon. Bus service is offered between Park City and Salt Lake City via High Valley Transit 's route 107. Reservoir (water) A reservoir ( / ˈ r ɛ z ər v w ɑːr / ; from French réservoir [ʁezɛʁvwaʁ] )
2754-448: The Ruhr and Eder rivers. The economic and social impact was derived from the enormous volumes of previously stored water that swept down the valleys, wreaking destruction. This raid later became the basis for several films. All reservoirs will have a monetary cost/benefit assessment made before construction to see if the project is worth proceeding with. However, such analysis can often omit
2835-487: The Sundance Film Festival . The city has two major ski resorts : Deer Valley Resort and Park City Mountain Resort (combined with Canyons Village at Park City) and one minor resort: Woodward Park City (an action sports training and fun center). Both Deer Valley and Park City Mountain Resorts were the major locations for ski and snowboarding events at the 2002 Winter Olympics , and are expected to reprise these roles for
2916-776: The Utah Olympic Park (including the Alf Engen Ski Museum and Eccles Salt Lake 2002 Olympic Winter Games Museum ), the Park City Museum, the Eccles Center Theater, an outlet mall, Main Street shopping and dining, and hundreds of miles of hiking and biking trails. The four resorts and Olympic Park offer activities and attractions in both the summer and winter. Park City hosts the Sundance Film Festival . The festivities are centered on Main Street, while film screenings are held in several venues both within and outside of Park City. Park City hosts an art festival each year,
2997-646: 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 has been grassed over and
3078-403: The 1950s, Utah began to use Park City as a mountain getaway, and not until D. James Canon promoted winter sports in Utah, with the promotional scheme of "Ski Utah" and "The Greatest Snow on Earth" did many drive to see the city. Utah drew in over 648,000 tourists in 1970 and now a yearly average of 4 million tourists. In a town with a population of 8,000, the average number of tourists in Park City
3159-466: The 1950s, the town nearly became a ghost town. This was due in part to a drop in the price of silver. The town was nearly destroyed by fire in 1898. Another accident occurred in 1902 when 34 miners were killed in an explosion in the Daly West Mine. The transformation of Park City into a ski destination town is primarily attributed to declining silver and metal prices during and following World War I,
3240-662: The Great Depression, and World War II. The mining community never fully recovered and so the town turned to skiing. The silver industry was suffering when 'Parkite' miners presented to Utahns Inc. a proposal for a ski resort called Treasure Mountain. United Park City Mines, who owned the land the resort would be built on, received a land-redevelopment grant from the John F. Kennedy Administration. Treasure Mountains (now Park City Mountain Resort) opened in 1963 on 10,000 acres (40 km ) of land
3321-558: The Kimball Arts Festival, which typically attracts around 50,000 visitors. Park City hosts two parades each year, one on July Fourth that attracts visitors from all over Utah, and one on Labor Day (locally called Miners' Day) that is more local-oriented. Park City co-hosted the 2002 Winter Olympics with Salt Lake City. Park City usually serves as the finish for the final leg of the Tour of Utah road bike race. Park City School District
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3402-710: The Meroitic town of Butana . The Hafirs catch the water during rainy seasons in order to ensure water is available for several months during dry seasons to supply drinking water, irrigate fields and water cattle. The Great Reservoir near the Lion Temple in Musawwarat es-Sufra is a notable hafir in Kush. In Sri Lanka , large reservoirs were created by ancient Sinhalese kings in order to store water for irrigation. The famous Sri Lankan king Parākramabāhu I of Sri Lanka said "Do not let
3483-534: The State of Utah. That same year Utah's total gross domestic product was $ 128 billion, making tourism 5.8% of GDP for the Utah economy as a whole. Park City draws in 3,006,071 average annual visitors; in the winter 1,603,775, and in the summer 1,402,296. Park City benefits from the average nightly visitor spending $ 100 to $ 350. Currently, Park City primarily relies on its tourist industry from skiing to restaurants to hiking and biking. The makeover of Park City has stimulated
3564-485: The US. The capacity, volume, or storage of a reservoir is usually divided into distinguishable areas. Dead or inactive storage refers to water in a reservoir that cannot be drained by gravity through a dam's outlet works , spillway, or power plant intake and can only be pumped out. Dead storage allows sediments to settle, which improves water quality and also creates an area for fish during low levels. Active or live storage
3645-523: The area flooded versus power produced, a reservoir built for hydro- electricity generation can either reduce or increase the net production of greenhouse gases when compared to other sources of power. A study for the National Institute for Research in the Amazon found that hydroelectric reservoirs release a large pulse of carbon dioxide from decay of trees left standing in the reservoirs, especially during
3726-428: The base of the dam or some distance away. In a flat river valley a reservoir needs to be deep enough to create a head of water at the turbines; and if there are periods of drought the reservoir needs to hold enough water to average out the river's flow throughout the year(s). Run-of-the-river hydro in a steep valley with constant flow needs no reservoir. Some reservoirs generating hydroelectricity use pumped recharge:
3807-547: 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 (250 sq mi). The Kingdom of Kush invented the Hafir , a type of reservoir, during the Meroitic period . 800 ancient and modern hafirs have been registered in
3888-457: The city. Outdoor-oriented businesses such as backcountry.com , Rossignol USA , and Skullcandy have their headquarters in Park City. The city has many retailers, clubs, bars, and restaurants, and has nearby reservoirs , hot springs , forests, and hiking and biking trails. In the summertime, many valley residents of the Wasatch Front visit the town to escape high temperatures. Park City
3969-442: The context of system-wide demands and supplies. In many countries large reservoirs are closely regulated to try to prevent or minimize failures of containment. While much of the effort is directed at the dam and its associated structures as the weakest part of the overall structure, the aim of such controls is to prevent an uncontrolled release of water from the reservoir. Reservoir failures can generate huge increases in flow down
4050-548: 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 (which were moved before the construction of the Aswan Dam to create Lake Nasser from the Nile in Egypt ),
4131-460: The developed world Naturally occurring lakes receive organic sediments which decay in an anaerobic environment releasing methane and carbon dioxide . The methane released is approximately 8 times more potent as a greenhouse gas than carbon dioxide. As a human-made reservoir fills, existing plants are submerged and during the years it takes for this matter to decay, will give off considerably more greenhouse gases than lakes do. A reservoir in
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#17328594782544212-507: The downstream river to maintain river quality, support fisheries, to maintain downstream industrial and recreational uses or for a range of other purposes. Such releases are known as compensation water . The units used for measuring reservoir areas and volumes vary from country to country. In most of the world, reservoir areas are expressed in square kilometers; in the United States, acres are commonly used. For volume, either cubic meters or cubic kilometers are widely used, with acre-feet used in
4293-440: The environmental impacts of dams and the reservoirs that they contain. Some impacts, such as the greenhouse gas production associated with concrete manufacture, are relatively easy to estimate. Other impacts on the natural environment and social and cultural effects can be more difficult to assess and to weigh in the balance but identification and quantification of these issues is now commonly required in major construction projects in
4374-491: The first decade after flooding. This elevates the global warming impact of the dams to levels much higher than would occur by generating the same power from fossil fuels . According to the World Commission on Dams report (Dams And Development), when the reservoir is relatively large and no prior clearing of forest in the flooded area was undertaken, greenhouse gas emissions from the reservoir could be higher than those of
4455-413: The flow in highly managed systems, taking in water during high flows and releasing it again during low flows. In order for this to work without pumping requires careful control of water levels using spillways . When a major storm approaches, the dam operators calculate the volume of water that the storm will add to the reservoir. If forecast storm water will overfill the reservoir, water is slowly let out of
4536-425: The following year to build a toll road through it, which was finished in 1849. The basin at the top of the canyon was an ideal place to graze, and a few families settled. Early on, the area was deeded to Samuel Snyder, Heber C. Kimball and Jedediah Grant . The settlers named it "Parley's Park City", which was shortened to "Park City" upon the town's incorporation in 1884. The first known discovery of ore in this area
4617-580: The hydroelectric reservoirs there do emit greenhouse gases, it is on a much smaller scale than thermal power plants of similar capacity. Hydropower typically emits 35 to 70 times less greenhouse gases per TWh of electricity than thermal power plants. A decrease in air pollution occurs when a dam is used in place of thermal power generation, since electricity produced from hydroelectric generation does not give rise to any flue gas emissions from fossil fuel combustion (including sulfur dioxide , nitric oxide and carbon monoxide from coal ). Dams can produce
4698-432: The landscape is relatively flat. Other service reservoirs can be storage pools, water tanks or sometimes entirely underground cisterns , especially in more hilly or mountainous country. Modern reserviors will often use geomembrane liners on their base to limit seepage and/or as floating covers to limit evaporation, particularly in arid climates. In the United Kingdom, Thames Water has many underground reservoirs built in
4779-511: The miners owned with mineral rights. This is said to be when tourists first largely began to visit Park City. This marks the beginning of the ski industry largely promoted by the Utah State Legislation as a destination resort. Since the rise of the skiing and tourist economy, Park City houses more tourists than residents. It has become a place of fame through the 2002 Winter Olympic Games and provides more attractions than ever before. In
4860-470: 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 substantially reduce many contaminants and reduce turbidity . The use of bank-side reservoirs also allows water abstraction to be stopped for some time, for instance when the river is unacceptably polluted or when flow conditions are very low due to drought . The London water supply system exhibits one example of
4941-593: 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 forming 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
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#17328594782545022-415: The operating rules may be complex. Most modern reservoirs have a specially designed draw-off tower that can discharge water from the reservoir at different levels, both to access water as the water level falls, and to allow water of a specific quality to be discharged into the downstream river as "compensation water": the operators of many upland or in-river reservoirs have obligations to release water into
5103-428: The original streambed of the downstream river and are filled by creeks , rivers or rainwater that runs off the surrounding forested catchments, or off-stream reservoirs , which receive diverted water from a nearby stream or aqueduct or pipeline water from other on-stream reservoirs. Dams are typically located at a narrow part of a downstream of a natural basin. The valley sides act as natural walls, with
5184-553: The park. It also has 8 snowmobiles and dirt bikes. The Mountain Lab was the location of the snowboard video MTN. Lab and MTN. Lab 1.5. It also serves as a second home for DC co-owner and founder Ken Block and his family. All information regarding the Mountain Lab was taken from the video MTN. Lab, and from http://www.skiparkcity.net . and https://web.archive.org/web/20100728205625/http://www.arkademag.com/en/categoryblog/278-rip-dc-mountain-lab.html Park City, Utah Park City
5265-581: The population were Hispanic or Latino of any race. As of the census of 2010, there were 7,558 people, 2,885 households, and 1,742 families residing in the city. The population density was 430.2 inhabitants per square mile (166.1/km ). There were 9,471 housing units at an average density of 539.1 per square mile (208.1/km ). The racial makeup of the city was 81.0% White , 0.6% African American , 0.30% Native American , 2.1% Asian , 0.3% Pacific Islander , 13.5% from other races , and 2.3% from two or more races. Hispanics or Latinos of any race were 24.1% of
5346-442: The population. There were 2,885 households, out of which 26.8% had children under the age of 18 living with them, 48.4% were married couples living together, 7.3% had a female householder with no husband present, 2.6% had a male householder with no wife present, and 39.6% were non-families. Of all households 25.8% were made up of individuals, and 5.0% had someone living alone who was 65 years of age or older. The average household size
5427-477: The pre-flooded landscape, noting that forest lands, wetlands, and preexisting water features all released differing amounts of carbon dioxide and methane both pre- and post-flooding. The Tucuruí Dam in Brazil (completed in 1984) had only 0.4 times the impact on global warming than would generating the same power from fossil fuels. A two-year study of carbon dioxide and methane releases in Canada concluded that while
5508-437: The quality of the water and the ecology of the surrounding area. Many reservoirs now support and encourage less formal and less structured recreation such as natural history , bird watching , landscape painting , walking and hiking , and often provide information boards and interpretation material to encourage responsible use. Water falling as rain upstream of the reservoir, together with any groundwater emerging as springs,
5589-464: The relocation of the village of Capel Celyn during the construction of Llyn Celyn , and the relocation of Borgo San Pietro of Petrella Salto during the construction of Lake Salto . Construction of a dammed reservoir will usually require the river to be diverted during part of the build, often through a temporary tunnel or by-pass channel. In hilly regions, reservoirs are often constructed by enlarging existing lakes. Sometimes in such reservoirs,
5670-627: The reservoir prior to, and during, the storm. If done with sufficient lead time, the major storm will not fill the reservoir and areas downstream will not experience damaging flows. Accurate weather forecasts are essential so that dam operators can correctly plan drawdowns prior to a high rainfall event. Dam operators blamed a faulty weather forecast on the 2010–2011 Queensland floods . Examples of highly managed reservoirs are Burrendong Dam in Australia and Bala Lake ( Llyn Tegid ) in North Wales . Bala Lake
5751-524: The southeast, south, and west. It is accessed by State Route 224 from Interstate 80 to the north and State Route 248 (Kearns Boulevard), which heads east to U.S. Route 40 and on to Kamas . From Park City north through the Snyderville Basin there is a low topographic divide with McLeod Creek on the western side and Silver Creek on the eastern side. Summers in Park City are warm with cool nights, while winters are cold and snowy. The city has
5832-454: The tourist population greatly exceeds the number of permanent residents. After a population decline following the shutdown of the area's mining industry , the city rebounded during the 1980s and 1990s through an expansion of its tourism business. As of 2021 the city brings in a yearly average of $ 529.8 million to the Utah Economy as a tourist hot spot, $ 80 million of which is attributed to
5913-493: The use of bank-side storage: here water is taken from the River Thames and River Lee into several large Thames-side reservoirs, such as Queen Mary Reservoir that can be seen along the approach to London Heathrow Airport . Service reservoirs store fully treated potable water close to the point of distribution. Many service reservoirs are constructed as water towers , often as elevated structures on concrete pillars where
5994-412: The water, which tends to partition some elements such as manganese and phosphorus into deep, cold anoxic water during the summer months. In the autumn and winter the lake becomes fully mixed again. During drought conditions, it is sometimes necessary to draw down the cold bottom water, and the elevated levels of manganese in particular can cause problems in water treatment plants. In 2005, about 25% of
6075-635: The weathered remains of the California-Comstock and Silver King Mines and the water towers once used to hydrate one of the biggest mines, the Silver King, provide some history of this mining town transformed into a skiing resort. According to the United States Census Bureau , the city has a total area of 17.567 square miles (45.50 km ), all land. Park City is located at the south end of Snyderville Basin and climbs steep mountains to
6156-476: The world's 33,105 large dams (over 15 metres in height) were used for hydroelectricity. The U.S. produces 3% of its electricity from 80,000 dams of all sizes. An initiative is underway to retrofit more dams as a good use of existing infrastructure to provide many smaller communities with a reliable source of energy. A reservoir generating hydroelectricity includes turbines connected to the retained water body by large-diameter pipes. These generating sets may be at
6237-399: Was 2.6 and the average family size was 3.03. The age distribution was 23.0% under the age of 20, 7.2% from 20 to 24, 30.7% from 25 to 44, 30.4% from 45 to 64, and 8.5% who were 65 years of age or older. The median age was 37.4 years. For every 100 females, there were 112.3 males. For every 100 females age 18 and over, there were 114.7 males. As of the census of 2000, the median income for
6318-416: Was by men serving under Colonel Patrick E. Connor , who invited his men to prospect in the area after having been relocated from Gold Rush -era California. The finding of silver, gold and lead sparked the first silver mines in Park City in the 1860s. Park City's large mining boom brought large crowds of prospectors setting up camps around the mountain terrain, marking the first mining settlements. Although it
6399-642: Was mayor of Salt Lake City . In 1880, a spur line was established to the Echo station of the First transcontinental railroad . By 1892 the Silver King Mine and its owners Thomas Kearns and David Keith took the spotlight as one of the most famous silver mines in the world. While silver mines were doing well in Utah, other mines around the world were not doing as well, which drew many of these miners to Park City. The town flourished with crowds of miners and wealth, but by
6480-530: Was not the first find, the Ontario silver mine , discovered by Herman Buden in 1872 and quickly purchased by George Hearst through his business partner R. C. Chambers , was the first major producer. Another prominent mining family was that of William Montague Ferry Jr . Ferry Moved to Utah from West Michigan already a very wealthy man. He had previously been a Colonel in the Union Army , mayor of Grand Haven , and
6561-594: Was son of wealthy businessman William Montague Ferry . Ferry was followed by a group of other wealthy Michiganders (including his brother Edward Payson Ferry ) who came to be the social elites of the town. The Ferry family owned numerous mines including the Marsac Silver mining Company and the Silver King Coalition Mines. Col Ferry also donated the land for Westminster College and unsuccessfully ran for governor of Utah. Edward Ferry's son W. Mont Ferry
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