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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.
Bonneville Lock & Dam is one of three hydroelectric power plants operated by the Portland District along the Columbia River. The dam generates enough electricity to power approximately 900,000...
The Bonneville Dam is a feat of engineering in the Columbia River Gorge, recognized as one of the world’s largest hydroelectric systems and an important landmark that’s well worth a stop.
At Bonneville Dam, you can: Explore Robins Island and Bradford Island for wildlife viewing and outdoor recreation. Learn everything you ever wanted to know about the migratory journey of salmon and Pacific lamprey.
Visitors can get views of the river, see fish migrating up the ladders, and learn a lot more at the Oregon and Washington Shore Visitor Centers that are open each day from 9 am to 5 pm. Learn more about the Bonneville Lock and Dam: Learn more about the Lewis and Clark National Historic Trail:
Bonneville Dam, Lake Bonneville, and associated facilities are operated for Hydropower, Navigation, Fish & Wildlife, Recreation, and Water Quality. Bonneville Dam was authorized by Congress...
The Bradford Island Visitor Center, located adjacent to the dam on the Oregon side of the river, displays exhibits on local history, hydropower, and fish life cycles. The Lewis and Clark Expedition camped on Bradford Island on April 9, 1806 upon their return journey.
The U.S. Army Corps of Engineers operates and maintains Bonneville Lock and Dam for hydropower production, fish and wildlife protection, recreation, and navigation. Visitors can experience the operation of two hydroelectric powerhouses, watch migrating fish traveling upstream at the underwater viewing rooms next to the fish ladders, and see ...
Located 41 miles upriver from the mouth of the Willamette, Bonneville Dam impounds a 48-mile-long reservoir with a pool elevation of 76.5 feet. The dam is located at the farthest reach of tide from the Pacific Ocean and is named for Captain Benjamin Bonneville, an early nineteenth-century army explorer and booster of the Oregon Country.
You can visit Bonneville Dam anytime throughout the year, but the best time to see fish in the underwater viewing windows is when adult Chinook and coho salmon are migrating up the Columbia River from August - October, particularly September.