is there any dam here?
Yes, a total of fifteen dams, with McNary Dam being one of them.
Snake River
A total of fifteen dams have been constructed along the Snake River for a multitude of different purposes, from its headwaters in the Rocky Mountains to its mouth on Lake Wallula, the reservoir formed behind McNary Dam on the Columbia River.
does the snake river flow into the columbia river No, it is a tributary of the latter, and flows into the Pacific Ocean. is it a polluted river? Yes, agricultural runoff from farms and ranches in the Snake River Plain and many other areas has severely damaged the ecology of the river throughout the 20th century.
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Snake River [SEP] Dams
A total of fifteen dams have been constructed along the Snake River for a multitude of different purposes, from its headwaters in the Rocky Mountains to its mouth on Lake Wallula, the reservoir formed behind McNary Dam on the Columbia River. Dams on the Snake can be grouped into three major categories. From its headwaters to the beginning of Hells Canyon, many small dams block the Snake to provide irrigation water. Between here and Hells Canyon, the first dam on the Snake, Swan Falls Dam, was built in 1901. In Hells Canyon, a cascade of dams produce hydroelectricity from the river's steep fall over a comparatively short distance.