Scientific American. | DECEMBER 17, 1898. 392 Separate blocks were built first over the surface of the A GREAT CALIFORNIA DAM. dam, each having niches and projections on the tops 35 feet. and sides. The first set of blocks may be likened to the black squares set in a chessboard. After the The… … four of the former reservoir at this blocks. In this point could not have been surpassed. The lower terraces of the range turbed, thus allowing the superstructure to dovetail manner construction of the dam continued until finished to its present height. In all, 500 of these of mountains which start…
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