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North Fork Dam (Clackamas County, Oregon)
The North Fork Dam is on the Clackamas River, about five miles upriver from Estacada, Oregon. It was built in 1958. The North Fork Reservoir is behind it. Construction It is a concrete arched dam, 206 feet high and 676 feet long, is thin-shell of variable thickness. It varies in thickness from 32 feet at the base to 8 feet wide at the top. The fish ladder North Fork's construction entailed the building of the 1.9-mile-long North Fork Fish Ladder A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as movemen ..., one of the longest in the world. It also required a complex system to provide for downstream fish passage around the dam. References External links North Fork Reservoir Additional Information - Oregon State Marine BoardA mapHelping Fish Find Their Way Up The ClackamasThe elevation, la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clackamas County, Oregon
Clackamas County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 421,401, making it Oregon's third-most populous county. Its county seat is Oregon City. The county was named after the Native Americans living in the area, the Clackamas people, who are part of the Chinookan peoples. Clackamas County is part of the Portland-Vancouver- Hillsboro, OR- WA Metropolitan Statistical Area. It is in the Willamette Valley. History Originally named Clackamas District, it was one of the four original Oregon districts created by Oregon's Provisional Legislature on July 5, 1843, along with Twality (later Washington), Champooick (later Marion), and Yamhill. The four districts were redesignated as counties in 1845. At the time of its creation, Clackamas County covered portions of four present-day U.S. states and a Canadian province. The Columbia River became the northern boundary of the county in 1844. Soon after, John McLoughlin staked a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oregon
Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42nd parallel north, 42° north parallel delineates the southern boundary with California and Nevada. Oregon has been home to many Indigenous peoples of the Americas, indigenous nations for thousands of years. The first European traders, explorers, and settlers began exploring what is now Oregon's Pacific coast in the early-mid 16th century. As early as 1564, the Spanish expeditions to the Pacific Northwest, Spanish began sending vessels northeast from the Philippines, riding the Kuroshio Current in a sweeping circular route across the northern part of the Pacific. In 1592, Juan de Fuca undertook detailed mapping and studies of ocean currents in the Pacific Northwest, including the Oregon coast as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clackamas River
The Clackamas River is an approximately tributary of the Willamette River in northwestern Oregon, in the United States. Draining an area of about , the Clackamas flows through mostly forested and rugged mountainous terrain in its upper reaches, and passes agricultural and urban areas in its lower third. The river rises in eastern Marion County, about east-southeast of Salem. The headwaters are on the slopes of Olallie Butte in the Mount Hood National Forest, about north of Mount Jefferson, at an elevation of in the Cascade Range. The Clackamas flows briefly north and then flows northwest through the mountains, passing through North Fork Reservoir and Estacada. It then emerges from the mountains southeast of Portland. It joins the Willamette near Oregon City and forms the boundary between Oregon City and Gladstone. The Clackamas provides hydroelectric power and drinking water for some of the Portland metropolitan area, and it supports runs of Coho salmon, spring and fall C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estacada, Oregon
Estacada is a city in Clackamas County, Oregon, United States, about southeast of Portland. The 2020 population is estimated to be 3,700. According to the 2010 census, the population in 2010 was 2,695. It is the 89th largest city in Oregon and the 5602nd largest city in the United States. History The Estacadpost officeopened on February 24, 1904 and the city was incorporated in May 1905. The community formed as a camp for workers building a hydroelectric dam on the nearby Clackamas River that was to supply Portland with electricity. At the time, the river was relatively inaccessible by road, forcing the Oregon Power Railway Company to build a railway to the vicinity of the river to transport crews to the river for the construction of the dam. After the construction of the Hotel Estacada, the town became a weekend destination on the railroad line for residents of Portland. During the week, the train carried freight and work crews to and from Portland. Following the development o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Oregon Encyclopedia
The ''Oregon Encyclopedia of History and Culture'' is a collaborative encyclopedia focused on the history and culture of the U.S. state of Oregon. Description The encyclopedia is a project of Portland State University's History Department, thOregon Council of Teachers of English and the Oregon Historical Society. It has drawn support from Oregon Cultural Trust partners Oregon Arts Commission, Oregon Council for the Humanities, Oregon Cultural Heritage Commission, and the Oregon State Historic Preservation Office The Oregon Parks and Recreation Department (OPRD), officially known (in state law) as the State Parks and Recreation Department, is the government agency of the U.S. state of Oregon which operates its system of state parks. In addition, it has pro .... One of the project's three editors, Bill Lang, a professor of history at Portland State University, said one goal is to produce an online encyclopedia of Oregon's history "deep into the future." Lang also said the Oregon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Fork Reservoir (Clackamas County, Oregon)
North Fork Reservoir is a reservoir behind North Fork Dam, on the Clackamas River, upriver from Estacada. It is found at an elevation of . Location and construction North Fork is in Clackamas County, Oregon, and is located five miles upriver from Estacada. The dam was built in 1958. Named for North Fork Reservoir was named for the North Fork of the Clackamas that flows into the lake. Nearby dams It is near River Mill Hydroelectric Project and Faraday Dam. Portland General Electric operates all dams and related infrastructure. Fishing North Fork is a popular fishing area. Recreation North Fork is near Portland, Oregon, is easily accessible, and is a popular recreation area. It is also a popular boating area. See also * List of lakes in Oregon This is a list of the lakes and reservoirs of Oregon. Gallery File:AbertRim-right.jpg, Lake Abert and the Abert Rim File:Applegate Lake Oregon.jpg, Applegate Lake in Jackson County File:Lake Billy Chinook, Deschutes Nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Ladder
A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as movements of potamodromous species. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps (hence the term ''ladder'') into the waters on the other side. The velocity of water falling over the steps has to be great enough to attract the fish to the ladder, but it cannot be so great that it washes fish back downstream or exhausts them to the point of inability to continue their journey upriver. History Written reports of rough fishways date to 17th-century France, where bundles of branches were used to make steps in steep channels to bypass obstructions. A pool and weir salmon ladder was built around 1830 by James Smith, a Scottish engineer on the River Teith, near Deanston, Perthshire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Oregon
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1958 Establishments In Oregon
Events January * January 1 – The European Economic Community (EEC) comes into being. * January 3 – The West Indies Federation is formed. * January 4 ** Edmund Hillary's Commonwealth Trans-Antarctic Expedition completes the third overland journey to the South Pole, the first to use powered vehicles. ** Sputnik 1 (launched on October 4, 1957) falls to Earth from its orbit, and burns up. * January 13 – Battle of Edchera: The Moroccan Army of Liberation ambushes a Spanish patrol. * January 27 – A Soviet-American executive agreement on cultural, educational and scientific exchanges, also known as the "Lacy-Zarubin Agreement, Lacy–Zarubin Agreement", is signed in Washington, D.C. * January 31 – The first successful American satellite, Explorer 1, is launched into orbit. February * February 1 – Egypt and Syria unite, to form the United Arab Republic. * February 6 – Seven Manchester United F.C., Manchester United footballers are among the 21 people killed i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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