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Ross Dam is a 540-foot (160 m)-high, 1,300-foot (400 m)-long concrete thin arch dam across the Skagit River, forming Ross Lake. The dam is in Washington state , while Ross Lake extends 23 miles (37 km) north to British Columbia , Canada .
Location of Okmulgee County in Oklahoma. This is a list of the National Register of Historic Places listings in Okmulgee County, Oklahoma. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Okmulgee County, Oklahoma, United States. The locations of National Register properties ...
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Ross Lake, formed by Ross Dam extends into British Columbia, which is 20 miles upriver from the dam. Ross Lake National Recreation Area surrounds the lake. Construction of Gorge Dam began in 1921 and the first power was delivered to Seattle in 1924. The cost of the dam was $13 million ($153,339,181 in 2006 dollars). [6]
The nearly 8100 major dams in the United States in 2006. The National Inventory of Dams defines a major dam as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3).
Ross Lake is a large reservoir in the North Cascade mountains of northern Washington state, United States, and southwestern British Columbia, Canada.The lake runs approximately north–south, is 23 miles (37 km) long, up to 1.5 miles (2.5 km) wide, and the full reservoir elevation is 1,604 feet above sea level (489 m).
Ross Dam in the Ross Lake National Recreation Area. Mineral prospectors entered the North Cascades region, and by the 1850s were doing placer mining along the banks of the Skagit River in search of gold. In the 1870s, placer mining also commenced along Ruby Creek, and hundreds of miners came to the region even though it was difficult to access.