Quote
It was built in 1898
It is totally underground, 270 feet below Snoqualmine falls
Capacity is about 11,900 kW
All the turbines were lowered into the chamber via an elevator
The rotor creates the power, the field is on the stator, modern generators are the opposite.
This generator power is via brushes at 1,000 volts. The plant will be modernized in a few years and the old equipment removed.

Its hard to see in the pictures but the generator room is painted basalt rock, not concrete lined.
see Brochure (450k file)
Quote
picture of a picture, showing the first high voltage line run over the Cascade Mountains, 1927 I believe over Snoqualime Pass

- Tom Baker
[Linked Image]