Citizendia
Your Ad Here

Duwamish River
none The lower Duwamish Waterway and the First Avenue South Bridge (State Route 99), looking north. Slips 1, 2, and 3 can be seen on the eastern bank. Kellogg Island is the crescent-shaped island in the upper right portion.
The lower Duwamish Waterway and the First Avenue South Bridge (State Route 99), looking north. The First Avenue South Bridge is a pair of double-leaf bascule Bridges built between 1956 and 1998 that carry State Route 99 over the Duwamish River State Route 99, abbreviated SR 99, commonly called Highway 99, is a numbered State highway in the U Slips 1, 2, and 3 can be seen on the eastern bank. Kellogg Island is the crescent-shaped island in the upper right portion.
Country United States
State Washington
Major cities Seattle, Tukwila
Length 12 mi (19 km)
Discharge at Elliott Bay
Source Green River

The Duwamish River is the name of the lower 12 miles (19 km) of Washington state's Green River. The United States of America —commonly referred to as the Washington ( is a state in the Pacific Northwest region of the United States. Tukwila (tʌkˈwɪlə is a city in King County, Washington, about 6 miles south of Seattle. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand Elliott Bay is the body of water on which Seattle Washington is located The Green River is a 65 mile long river in the state of Washington in the United States, arising on the western slopes of the Cascade Mountains south Washington ( is a state in the Pacific Northwest region of the United States. The Green River is a 65 mile long river in the state of Washington in the United States, arising on the western slopes of the Cascade Mountains south Its industrialized estuary is known as the Duwamish Waterway.

Contents

History

At one time, the White and Green Rivers, which combined at Auburn, joined the Black River at Tukwila to form the Duwamish. The White River is a River in the US state of Washington. It flows about 75 miles (121 km from its source the Emmons Glacier on Mount The Green River is a 65 mile long river in the state of Washington in the United States, arising on the western slopes of the Cascade Mountains south Auburn is a city of 67732 (2008 located in the US state of Washington, in King County with some spill-over The Black River was a River in King County in the US state of Washington. Tukwila (tʌkˈwɪlə is a city in King County, Washington, about 6 miles south of Seattle. In 1906, however, the White River changed course following a major flood and emptied into the Puyallup River as it does today. Later, in 1912 the Cedar River was diverted to empty into Lake Washington instead of the Black River, though the lake itself still emptied into the Black. Year 1912 ( MCMXII) was a Leap year starting on Monday (link will display the full calendar of the Gregorian calendar (or a Leap year starting The Cedar River is a River in the US state of Washington. About long (72 km it originates in the Cascade Range and flows generally west Lake Washington is the second largest natural Lake in state of Washington (after Lake Chelan) and the largest lake in King County. Then, with the opening of the Lake Washington Ship Canal in 1916, the lake's level dropped nearly nine feet and the Black River dried up. The Lake Washington Ship Canal, which runs through Seattle Washington connecting Lake Washington to Puget Sound, is a system consisting of from east Hence the point of the name change is no longer the confluence of the Green and Black rivers, though it has not changed location.

The Duwamish River is named after the Duwamish tribe. The Duwamish tribe (dxʷdɐwʔabʃ in Lushootseed is a Native American tribe in western Washington, and the indigenous people of metropolitan Seattle.

Modern Use

The Duwamish River at Tukwila
The Duwamish River at Tukwila
The Duwamish at South Park, Seattle
The Duwamish at South Park, Seattle

The Duwamish Waterway empties into Elliott Bay in Seattle, divided by the man-made Harbor Island into two channels, the East and West Waterways. Elliott Bay is the body of water on which Seattle Washington is located

Due to 20th century industrial contamination, the lower five miles (8 km) of the Duwamish was declared a Superfund site by the United States Environmental Protection Agency. The twentieth century of the Common Era began on Pollution is the introduction of contaminants into an environment that causes instability disorder harm or discomfort to the physical systems or living organisms they are in Superfund is the common name for the United States environmental policy officially known as the Comprehensive Environmental Response Compensation and Liability Act The contaminants include PCBs, PAHs, mercury, and phthalates. Polychlorinated biphenyls ( PCB s are a class of Organic compounds with 1 to 10 Chlorine atoms attached to Biphenyl which is a molecule composed Polycyclic aromatic hydrocarbons ( PAH s are Chemical compounds that consist of fused Aromatic rings and do not contain Heteroatoms or Mercury (ˈmɜrkjʊri also called quicksilver or hydrargyrum, is a Chemical element with the symbol Hg ( Latinized hydrargyrum Phthalates, or phthalate esters, are esters of Phthalic acid and are mainly used as Plasticizers (substances added to Plastics to increase their [1] The cleanup of the river has been controversial: the original plan was to dredge the river and dump the resulting sludge in Tacoma's Commencement Bay, 26 miles to the southwest. SLUDGE (Scripting Language for Unhindered Development of a Gaming Environment is a open source adventure game engine developed by Hungry Software Commencement Bay is a Bay of Puget Sound in the US state of Washington. Local opposition to this plan forced the sludge to be shipped to Klickitat County in south central Washington. Klickitat County is a County located in the US state of Washington. Washington ( is a state in the Pacific Northwest region of the United States. [2]

See also

External links

Frank B Cooper Elementary School, usually called Cooper School, serves students from Kindergarten through 5th grade. Seattle Public Schools is the School district serving Seattle, Washington, USA Delridge is a neighborhood in West Seattle, Washington that stretches along Delridge Way an arterial that follows the eastern slope of the valley of Longfellow KUOW-FM (949 FM broadcasting) is a National Public Radio affiliate Radio station in Seattle, Washington. The Seattle Post-Intelligencer (popularly known as "the P-I" is one of two daily Newspapers in Seattle Washington, United States.
© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
 Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic