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This picture of Dam #1 taken in February 1913



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  • Work crews pouring an eastern "wing wall" extension to Dam #1

    Work crews pouring an eastern "wing wall" extension to Dam #1

    Visual Materials

    By May of 1913, each of the three dams at the Basin was virtually complete. Here, work crews are pouring an eastern "wing wall" extension to Dam #1. By this time, with much of the original "Basin Railroad" flooded by the rising waters of the reservoir, a two-foot narrow-gauge tramway was being used to deliver mixed concrete to each work face.

    photCL SCE 12 - 00040

  • Photo shows the complex system of railroads and chuting employed to pour concrete the dams at Huntington Lake

    Photo shows the complex system of railroads and chuting employed to pour concrete the dams at Huntington Lake

    Visual Materials

    Photo shows the complex system of railroads and chuting employed to pour concrete the dams at Huntington Lake. Steam locomotives ran trains of three-yard dump cars from the mixing plant to each dam site. At the dam site the standard gauge trains dumped their concrete into one-yard dump cars that were pulled onto the dam on a narrow gauge track with a gasoline powered locomotive.

    photCL SCE 12 - 00067

  • Upstream core drill hole Dam 1

    Upstream core drill hole Dam 1

    Visual Materials

    Upstream core drill hole Dam 1. U-s station 10+62.7. Elevation 6898.9. This hole is in column of concrete near gate house which shows evidence of different mix than surrounding concrete on upstream face.

    photCL SCE 02 - 20101

  • Power Producers - Not SCE - Stewart Mountain Dam

    Power Producers - Not SCE - Stewart Mountain Dam

    Visual Materials

    Power Producers - Not SCE - Stewart Mountain Dam - Spalling concrete at form ties and cracks from expanding concrete on the upstream face of the arch.

    photCL SCE 02 - 27954

  • Upstream face Dam 1, showing condition of concrete in vicinity of core-drill hole U-2 prior to drilling

    Upstream face Dam 1, showing condition of concrete in vicinity of core-drill hole U-2 prior to drilling

    Visual Materials

    Upstream face Dam 1, showing condition of concrete in vicinity of core-drill hole U-2 prior to drilling.

    photCL SCE 02 - 20103

  • Stone & Webster #11 is working the gravel pit in the Basin in February 1913

    Stone & Webster #11 is working the gravel pit in the Basin in February 1913

    Visual Materials

    Stone & Webster #11, which began life in 1866 as Central Pacific #24 "Montana," is working the gravel pit in the Basin in February 1913. Trainloads of gravel were carried several miles to a crushing and mixing plant, where the rock was made into concrete for the three dams then under construction on the perimeter of the Basin.

    photCL SCE 12 - 00038