extent, and the dam, in spite shore side of the rack are eleven steel of the fact that it was a merely tem- penstocks 10% feet in diameter, which porary construction, varied from 20 to conduct the water to the bottom of the 46 feet in width, and had a total depth wheel pit. of water against it,… … vertical hollow shaft 115 feet in length, full of boulders and deep fissures. The which extends up through the wheel pit, dam was built out in 16-foot sections. and is supported at three intermediate Each section was constructed in the still points by solid masonry bearings. Each water under the…
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