Visual Materials
Big Creek, Florence Lake Dam
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Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Chipping Arch #9 for Asbestile membrane.
photCL SCE 02 - 25954

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Chipping Arch #9 for Asbestile membrane.
photCL SCE 02 - 25955

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Typical snowdrift and scoring of asbestile of arch on the right.
photCL SCE 02 - 26673

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Record photo of upstream face of Arches 11 to 25 inclusive in second tangent. Arch #13 covered with sheet steel membrane during June 1942 and Arch #12 covered with J-M Asbestile waterproofing during Nov. 1942.
photCL SCE 02 - 24863

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Typical blister formed under asbestile waterproofing on arch 12 side of gunite fillet in Arch 12-13 groin while subjecting Arch 13 to 3/4 lb. air pressure for testing leaks.
photCL SCE 02 - 24878

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Close-up of gunite key at base of Arch #13, showing evidence of back leakage. Gunite key was covered with asbestile on November 25, 1942.
photCL SCE 02 - 24825