The John Day Dam is a concrete gravity run-of-the-river dam spanning the Columbia River in the northwestern United States. [3] The dam features a navigation lock plus fish ladders on both sides.

John Day Lock & Dam is located 216 miles upriver from the mouth of the Columbia River near the city of Rufus, Ore. Dedicated in 1968, construction of John Day Lock & Dam was completed in 1971.

John Day Lock & Dam is located 216 miles upriver from the mouth of the Columbia River near the city of Rufus, Ore. Dedicated in 1968, construction of John Day Lock & Dam was completed in...

2023年8月7日 · John Day Lock and Dam was authorized by Congress for power, navigation, and flood control in the 1950 Flood Control Act and amended in 1957. The project was completed in 1971 near the city of...

2013年9月17日 · The John Day Lock and Dam is located 216 miles upstream from the mouth of the Columbia River. It is one of the top five largest hydropower dams in the United States! In addition to supplying...

2025年3月24日 · John Day Dam and Lake Umatilla. Provisional Data Warning Hydrologic Data: [8 Days Hourly] [Prior Month] Water Quality Data: [High 12-hour Avg TDG] [Total Spill] Power: [Monthly Power Report] Project Description. Sub-basin: Lower Columbia; Stream: Columbia River; Location: Rufus, Oregon ...

John Day Lock and Dam is an earthen embankment dam located in Rufus, Klickitat, Oregon. The dam, which is on the Columbia River, was primarily built for Navigation purposes, but also serves for Irrigation, Recreation, Hydroelectric and Flood Risk Reduction benefits.

These web pages provide information about the location, construction date, pool elevation, and powerhouse capacity of the major federal and non-federal hydroelectric projects in the Columbia Basin. All information is courtesy of U.S. Army Corps of Engineers, NWD unless otherwise noted.

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John Day Dam is 216 miles upstream from the mouth of the Columbia River and located at Exit 109 off Interstate 84 in Oregon. The project consists of a navigation lock, spillway, smolt monitoring facility, powerhouse and fish-passage facilities on both shores.