Visual Materials
The big "bull wheel" tensioning devices for 500kV transmission line construction were much larger than their 220kV ancestors used in the building of the Hoover Dam lines
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Preparing to pull through some more cable during the construction of a 500kV transmission line
Visual Materials
Preparing to pull through some more cable during the construction of a 500kV transmission line. Pg. 222.
photCL SCE 11 - 00448

Dramatic view of the building of the Vincent-Lugo 500kV transmission line, part of Edison's bulk power "backbone"
Visual Materials
Dramatic view of the building of the Vincent-Lugo 500kV transmission line, part of Edison's bulk power "backbone". Pg. 224.
photCL SCE 11 - 00451

One tower of Edison's growing network of 500kV transmission lines stands sentinel in Cajon Pass in the winter of 1973
Visual Materials
One tower of Edison's growing network of 500kV transmission lines stands sentinel in Cajon Pass in the winter of 1973. Pg. 226.
photCL SCE 11 - 00457

Stringing wire on the Mira Loma-Lugo 500 kV transmission line in Cajon Pass, 1979
Visual Materials
Stringing wire on the Mira Loma-Lugo 500 kV transmission line in Cajon Pass, 1979. Pg. 222.
photCL SCE 11 - 00446

This 1922 map shows the proposed ultimate development of the Big Creek Project to a size even larger than that first envisioned by John Eastwood
Visual Materials
This 1922 map shows the proposed ultimate development of the Big Creek Project to a size even larger than that first envisioned by John Eastwood. Still later plans added more powerhouses on the South Fork of the San Joaquin, but none were built before the depression ended work. Today, the Balsam Meadows Plant is near the site of old Powerhouse #5. Pg. 103.
photCL SCE 11 - 00208