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Puget Sound's shoreline is 1,332 miles (2,144 km) long, encompassing a water area of 1,020 square miles (2,600 km 2) and a total volume of 26.5 cubic miles (110 km 3) at mean high water. The average volume of water flowing in and out of Puget Sound during each tide is 1.26 cubic miles (5.3 km 3).
The Lake Washington Ship Canal is a canal that runs through the city of Seattle and connects the fresh water body of Lake Washington to the salt water inland sea of Puget Sound. The Hiram M. Chittenden Locks accommodate the approximately 20-foot (6.1 m) difference in water level between Lake Washington and the sound.
To maintain the water level of the fresh water Lake Washington and Lake Union at 20–22 feet (6.1–6.7 m) above sea level, or more specifically, 20.6 ft (6.3 m) above Puget Sound's mean low tide. [2]: 2 [3] [5]: 8 To prevent the mixing of sea water from Puget Sound with the fresh water of the lakes (saltwater intrusion). [2]: 2–3
The Cedar River's water, via Lake Washington, still ultimately flowed into the Black River, Duwamish River, and into Elliott Bay. [7] In 1916 the Lake Washington Ship Canal's Montlake Cut was finished, connecting Lake Washington and Lake Union. The water level of Lake Washington dropped 8.8 feet (2.7 m), to the level of Lake Union.
It drains an area of the high North Cascades in the watershed of Puget Sound north of Seattle, and east of Mount Baker. With a watershed of approximately 270 square miles (700 km 2 ) in a complex of deep valleys partially inside North Cascades National Park , it is the last major tributary of the Skagit before the larger river reaches its mouth ...
Lake Cushman (Twana: ʔiluʔəɬ) [1] is a 4,014.6-acre (16.247 km 2) [2] lake and reservoir on the north fork of the Skokomish River in Mason County, Washington.The lake originally was a long narrow broadening of the Skokomish River formed in a glacial trough and dammed by a terminal moraine from the Vashon Glaciation during the most recent ice age.
As of 2023, the U.S. state of Washington has 1,242 dams that are able to impound 10 acre-feet or more of water and are regulated by the Washington State Department of Ecology (DOE). These include dams that produce hydroelectricity and create reservoirs for irrigation, drinking water, or recreational uses. According to the DOE, approximately 52 ...
It was created in 1911 by Puget Sound Power & Light and operated for hydroelectric power until it ceased power production in 2004. The reservoir was sold to the Cascade Water Alliance, a collective of municipalities in King County, to provide drinking water to 350,000 residents and 20,000 businesses.