Clackamas River: River Mill, Faraday and North Fork Projects

Monday, July 13, 2015

Time: 8:00 AM– 4:00 PM

Facility: 25-MW River Mill, 46-MW Faraday, 58-MW North Fork

Tour Host:

Cost: US$125 

*Limited to the first 50 registrants
Register by Sunday, July 12, 2015 

This tour features three of Portland General Electric's hydro projects in its Clackamas Project on the Clackamas River. In total, this project consists of eight dams, seven reservoirs and four powerhouses. The project features the longest operating fish ladder in the world, at 1.9 miles in length, running from the Faraday Diversion Dam to above North Fork Dam.

The 25-MW River Mill facility features the only surviving Ambursen-type dam west of the Mississippi River. It is listed on the National Register of Historic Places. The 46-MW Faraday project, the oldest of the three and the first hydro facility built on the Clackamas River, was completed in 1911. It was unique for its time in that a diversion dam was built to convey water through a canal to a man-made lake. A new surface collector for salmon is expected to be floated into place at the 58-MW North Fork facility about the time this tour is going on! This collector will augment earlier work to construct an adult fish sorting facility at the dam, which was completed in 2012.

Lewis River: Merwin and Swift Dam Projects


Date: Monday, July 13, 2015

Time: 8:00am – 5:00pm

Facility: 136-MW Merwin Dam, 240-MW Swift Dam

Tour Host:

Tour Sponsor:

Cost: US$125

*Limited to the first 30 registrants 
 Register by: Monday June, 29, 2015

This tour takes participants to two interesting hydro facilities on the Lewis River in southwestern Washington, 136-MW Merwin Dam and 240-MW Swift Dam. These are two elements of the three-powerhouse Lewis River Hydroelectric Project, which has a total capacity of 510 MW. All of these projects are located in a scenic area near Mt. St. Helens in the Cascade mountain range.

The Merwin Dam project, which began operating in 1931, is located at a 313-foot-high concrete arch type dam. It features an upstream collection and transport facility, completed in 2014, that facilitates collection of adult fish (salmon and steelhead) for transport upstream of Swift Dam.

Swift No. 1,  PacifiCorp's largest hydro facility, was built in 1958. At the time, the 512-foot-tall Swift Dam was one of the highest earthfill dams in the world. Discharge from this project enters a canal that transports the water through the 70-MW Swift No. 2 project, owned by Public Utility District No. 1 of Cowlitz County. A floating surface collector installed in the reservoir behind the dam directs and atracts juvenile fish, which are then trucked downstream and released below Merwin Dam.

Bonneville Lock and Dam: A View Inside


Date: Tuesday, July 14, 2015

Time: 8:30 AM- 1:00 PM

Facility: 1,077-MW Bonneville

Tour Host: 

Cost: US$75

*Limited to the first 50 registrants 
Register by: Friday, June 10, 2015

This tour features the 1,050-MW Bonneville hydropower facility, the last dam on the Columbia River before it enters the Pacific Ocean. The first powerhouse, spillway and original navigation lock were completed in 1938 to improve navigation on the river and provide hydropower to the Pacific Northwest. A second powerhouse was completed in 1981 and a larger navigation lock in 1993.

The Bonneville First Powerhouse, which contains 11 turbine-generator units, is currently undergoing a rehabilitation that includes new turbine guide bearings, replacement main unit circuit breakers and instrument transformers, turbine repair work and much more.

The dam features fish ladders that provide an elevation gain of 60 feet and are used to transport returning adult chinook salmon, coho salmon, sockeye salmon, steelhead trout, American shad and lamprey to their spawning grounds.

TW Sullivan: Willamette Falls Project


The TW Sullivan: Willamette Falls Project Technical Tour is a part of the Waterpower Hydro Basics Course and is only available for those registered for the Waterpower Hydro Basics Course. To learn more about this course CLICK HERE.


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