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Dam Attractions In Saint Helens

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St. Helens is the county seat of Columbia County, Oregon. It was founded by Captain Henry Montgomery Knighton, a native of New England, in 1845, as Plymouth. The name was changed to St. Helens in the latter part of 1850 for its view of Mount St. Helens, roughly 39 miles away in Washington. The city is about 28 miles northwest of Portland. Its population was 12,883 at the 2010 census.
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Dam Attractions In Saint Helens

  • 1. Bonneville Lock & Dam Cascade Locks
    Bonneville Lock and Dam consists of several run-of-the-river dam structures that together complete a span of the Columbia River between the U.S. states of Oregon and Washington at River Mile 146.1. The dam is located 40 miles east of Portland, Oregon, in the Columbia River Gorge. The primary functions of Bonneville Lock and Dam are electrical power generation and river navigation. The dam was built and is managed by the United States Army Corps of Engineers. At the time of its construction in the 1930s it was the largest water impoundment project of its type in the nation, able to withstand flooding on an unprecedented scale. Electrical power generated at Bonneville is distributed by the Bonneville Power Administration. Bonneville Lock and Dam is named for Army Capt. Benjamin Bonneville, a...
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