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The largest dam in Washington, in terms of structural volume, reservoir capacity and electricity production, is the Grand Coulee Dam on the Columbia River. The tallest dam is Mossyrock Dam on the Cowlitz River, at 606 feet (185 m). The longest dam is O'Sullivan Dam on Crab Creek, at 19,000 feet (5,800 m).
Capital Engineers: The US Army Corps of Engineers in the Development of Washington, DC 1790-2004 (Office of History, Headquarters, US Army Corps of Engineers, 2011). online; Shallat, Todd. "Building waterways, 1802–1861: Science and the United States Army in early public works." Technology and Culture 31.1 (1990): 18-50. excerpt; Shallat, Todd.
Annual generation. 5,170 GWh [1][2] McNary Dam is a 1.4-mile (2.2-km) long concrete gravity run-of-the-river dam which spans the Columbia River. It joins Umatilla County, Oregon with Benton County, Washington, 292 miles (470 km) upriver from the mouth of the Columbia. [3] It is operated by the U.S. Army Corps of Engineers ' McNary Lock and Dam ...
The original W. T. Preston was a 163-foot, wooden-hulled vessel which pulled snags, performed light dredging, and otherwise worked the waters of Puget Sound until 1939; when, the Army Corps of Engineers built a new superstructure atop a welded steel hull and transferred the stern wheel, main engines, smokestack, foredeck equipment, and other ...
932 MW (max) Columbia River Basin. Lower Monumental Lock and Dam is a hydroelectric, concrete, run-of-the-river dam in the northwest United States. Located on the lower Snake River in southeast Washington, it bridges Franklin and Walla Walla counties; [3][4] it is six miles (10 km) south of Kahlotus and 43 miles (70 km) north of Walla Walla.
Bonneville Lock and Dam / ˈbɒnəvɪl / 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. [ 6 ] The dam is located 40 miles (64 km) east of Portland, Oregon, in the Columbia River Gorge.
Chief Joseph Dam. The Chief Joseph Dam is a concrete gravity dam on the Columbia River, 2.4 km (1.5 mi) upriver from Bridgeport, Washington. The dam is 877 km (545 mi) upriver from the mouth of the Columbia at Astoria, Oregon. It is operated by the USACE Chief Joseph Dam Project Office and the electricity is marketed by the Bonneville Power ...
Lower Granite Dam. Lower Granite Lock and Dam is a concrete gravity run-of-the-river dam in southeastern Washington in the United States. On the lower Snake River, it bridges Whitman and Garfield counties. [6] Opened 49 years ago in 1975, [1][7][8] the dam is located 22 miles (35 km) south of Colfax and 35 miles (56 km) north of Pomeroy.