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Ballard Locks
The Hiram M. Chittenden Locks, or Ballard Locks, is a complex of locks at the west end of Salmon Bay in Seattle, Washington's Lake Washington Ship Canal, between the neighborhoods of Ballard to the north and Magnolia to the south. The Ballard Locks carry more boat traffic than any other lock in the U.S., and the locks, along with the fish ladder and the surrounding Carl S. English Jr. Botanical Gardens, attract more than one million visitors annually, making it one of Seattle's top tourist attractions. The construction of the locks profoundly reshaped the topography of Seattle and the surrounding area, lowering the water level of Lake Washington and Lake Union by , adding miles of new waterfront land, reversing the flow of rivers, and leaving piers in the eastern half of Salmon Bay high and dry. The Locks are listed on the National Register of Historic Places and have been designated by the American Society of Civil Engineers as a National Historic Civil Engineering Landmark. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmon Bay
Salmon Bay is a portion of the Lake Washington Ship Canal, which passes through the city of Seattle, linking Lake Washington to Puget Sound, lying west of the Fremont Cut. It is the westernmost section of the canal and empties into Puget Sound's Shilshole Bay. Because of the Hiram M. Chittenden Locks, the smaller, western half of the bay is salt water, and the eastern half is fresh water (though not without saline contamination: see Lake Union). Before the construction of the Ship Canal, Salmon Bay was entirely salt water. East of the locks, Salmon Bay is spanned by the Ballard Bridge, a bascule bridge that carries 15th Avenue traffic between Ballard and Interbay. West of the locks, it is spanned by the Salmon Bay Bridge that carries the BNSF Railway railroad tracks between Ballard and Magnolia ''Magnolia'' is a large genus of about 210 to 340The number of species in the genus ''Magnolia'' depends on the taxonomic view that one takes up. Recent molecular and morphologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bremerton, Washington
Bremerton is a city in Kitsap County, Washington. The population was 37,729 at the 2010 census and an estimated 41,405 in 2019, making it the largest city on the Kitsap Peninsula. Bremerton is home to Puget Sound Naval Shipyard and the Bremerton Annex of Naval Base Kitsap. Bremerton is connected to downtown Seattle by two ferries: a 60-minute ferry that carries both vehicles and walk-on passengers, and a 28-minute Fast Ferry that carries passengers and a limited number of bicycles. Geography Bremerton, the largest city in Kitsap County, is located directly west of Seattle across Puget Sound on the Kitsap Peninsula. It is bounded on the southeast and east by Sinclair Inlet and the strait of Port Orchard respectively. The city is divided by the Port Washington Narrows, a strait spanned by two bridges that connect the eastern and western sides of the city. The part of the city northeast of the narrows is referred to as East Bremerton. The city limits extend to the southwest as f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Water
Seawater, or salt water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately of sea salt, dissolved salts (predominantly sodium () and chloride () ions). The average density at the surface is 1.025 kg/L. Seawater is density, denser than both fresh water and pure water (density 1.0 kg/L at ) because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases. At typical salinity, it Freezing, freezes at about . The coldest seawater still in the liquid state ever recorded was found in 2010, in a stream under an Antarctic glacier: the measured temperature was . Seawater pH is typically limited to a range between 7.5 and 8.4. However, there is no universally accepted reference pH-scale for seawater and the diffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravity, gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can be used for any given locale to find the predicted times and amplitude (or "tidal range"). The predictions are influenced by many factors including the alignment of the Sun and Moon, the #Phase and amplitude, phase and amplitude of the tide (pattern of tides in the deep ocean), the amphidromic systems of the oceans, and the shape of the coastline and near-shore bathymetry (see ''#Timing, Timing''). They are however only predictions, the actual time and height of the tide is affected by wind and atmospheric pressure. Many shorelines experience semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal cycle, diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level
Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised geodetic datumthat is used, for example, as a chart datum in cartography and marine navigation, or, in aviation, as the standard sea level at which atmospheric pressure is measured to calibrate altitude and, consequently, aircraft flight levels. A common and relatively straightforward mean sea-level standard is instead the midpoint between a mean low and mean high tide at a particular location. Sea levels can be affected by many factors and are known to have varied greatly over geological time scales. Current sea level rise is mainly caused by human-induced climate change. When temperatures rise, Glacier, mountain glaciers and the Ice sheet, polar ice caps melt, increasing the amount of water in water bodies. Because most of human settlem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Washington Ship Canal Fish Ladder Pamphlet 03
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montlake Bridge
The Montlake Bridge is a double-leaf bascule bridge that carries State Route 513 (Montlake Boulevard) over Seattle's Montlake Cut—part of the Lake Washington Ship Canal—connecting Montlake and the University District. It is the easternmost bridge spanning the canal. The bridge is long, and was designed by Carl F. Gould, one of the original architects of the University of Washington campus. The bridge and its control towers were designed in conjunction with the university's Collegiate Gothic style. It provides a clearance of and is reported as providing of vertical clearance above the mean regulated level of Lake Washington for the central of the bascule span. It is one of four original bascule-type drawbridges over the Ship Canal, the others being the Ballard, Fremont, and University bridges. It was the last one to be completed, has the highest clearance of the four, and is the only one that is part of the state highway system. It is also one of six bascule bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Bridge (Seattle)
The University Bridge is a double-leaf bascule bridge in Seattle, Washington that carries Eastlake Avenue traffic over Portage Bay between Eastlake to the south and the University District to the north. It opened on July 1, 1919, and was extensively rebuilt from 1932 to 1933. It is included in the National Register of Historic Places. History The bridge opened in 1919 under the name of ''Eastlake Avenue Bridge'' (also then known as the ''Tenth Avenue Northeast Bridge''). It got its current and proper name on June 30, 1919. By 1930, the bridge had begun to deteriorate enough for an extensive refit to be ordered: the timber trestle approaches were replaced with ones made out of concrete and steel, the control towers were rebuilt, and the wooden paving was replaced by the first application of open steel-mesh grating in the United States. Wooden paving had to be replaced every ten years or so; the steel-mesh grating has been replaced once, in 1990. The reconstructed bridge was open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fremont Bridge (Seattle)
The Fremont Bridge is a double-leaf bascule bridge that spans the Fremont Cut in Seattle, Washington. The bridge, which connects Fremont Avenue North and 4th Avenue North, connects the neighborhoods of Fremont and Queen Anne. The Fremont Bridge was opened on Friday June 15, 1917, at a cost of $410,000. The first traffic over the bridge was to "owl cars", the last run of the trolleys, and then after 5am the same day to all other traffic. The Lake Washington Ship Canal was dedicated on July 4, 1917, which has caused confusion about the opening date, for this bridge crosses the canal. The Fremont Bridge is the first of four city bascules to cross the canal, the others being Ballard Bridge (1917), University Bridge (1919), and Montlake Bridge (1925). The bridge was added to the National Register of Historic Places in 1982, and is also a designated city landmark, ID #110347.In its early years, before the construction of the nearby Aurora Bridge in 1932, the Fremont Bridge had the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballard Bridge
The Ballard Bridge, also known as the 15th Avenue Bridge, is a double-leaf bascule bridge in Seattle, Washington. It carries 15th Avenue NW over Seattle's Salmon Bay between Ballard to the north and Interbay to the south. The Ballard Bridge follows the Fremont Bridge in the east in the succession of bridges spanning the Lake Washington Ship Canal, which connects Lake Washington in the east to Puget Sound in the west. Built in 1917, it has an opening span of and a total length of . The approaches of the bridge were originally timber trestles. It also carried a streetcar. In 1939, the timber approach spans of the Ballard Bridge were replaced as a Public Works Administration project. The deck was surfaced with concrete and the rails for the streetcar were removed. In 1982, it was added to the National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedar River (Washington)
The Cedar River is a river in the U.S. state of Washington. About long, it originates in the Cascade Range and flows generally west and northwest, emptying into the southern end of Lake Washington. Its upper watershed is a protected area called the Cedar River Watershed, which provides drinking water for the greater Seattle area. The Cedar River drains into Puget Sound via Lake Washington and the Lake Washington Ship Canal. Course The Cedar River originates in the Cascade Range near Abiel Peak, Meadow Mountain, and Yakima Pass, along the King and Kittitas countyline. Several headwater streams join in the high mountains fed from glacial run-off, then the Cedar River flows generally west. It is impounded in Chester Morse Lake, a natural lake that was dammed in 1900 for use as a water storage reservoir. The Rex River joins the Cedar in Chester Morse Lake, as do the two forks of the Cedar River, the north and south forks. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The primary factor that distinguishes wetlands from terrestrial land forms or Body of water, water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils. Wetlands are considered among the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal species. Methods for assessing wetland functions, wetland ecological health, and general wetland condition have been developed for many regions of the world. These methods have contributed to wetland conservation partly by raising public awareness of the functions some wetlands provide. Wetlands occur naturally on every continent. The water in wetlands is either freshwater, brackish or seawater, saltwater. The main w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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