This drawing reveals another flash of John Eastwood's genius, a design for prestressed concrete transmission towers, rather than the traditional wooden or steel poles. Such concrete towers were not used at Big Creek, but have been experimented with elsewhere in recent years.
Drawings Engineers Hydroelectric power-plants Electric lines--Poles and towers
Place
California
Source
Southern California Edison Photographs and Negatives Story of Big Creek Southern California Edison Photographs and Negatives, Huntington Digital Library
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