Visual Materials
Big Creek, Florence Lake Dam
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Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Close-up of striations caused by ice on surface of J-M waterproofing on Arch 54 near 54-55 groin. This waterproofing was applied in Dec. 42.
photCL SCE 02 - 24748

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Close-up showing application of 15# felt and final coat of plastic on Arch No. 52. Johns-Manville waterproofing being applied by the J.H. Bryant Co.
photCL SCE 02 - 24820a

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - View of downstream side of Arch 53, lake elevation 7261.90. Note slight dampness along 7252 joint 5' left to 20' right of centerline, also trace of asbestile waterproofing applied on upstream face duing spring of 1941 showing through joint at elevation 7260 5' left of centerline.
photCL SCE 02 - 24737

Big Creek, Florence Lake Dam
Visual Materials
Big Creek, Florence Lake Dam - Close-up showing application of 15# felt and final coat of plastic on Arch No. 52. Johns-Manville waterproofing being applied by the J.H. Bryant Co. [variant of 02-24820a].
photCL SCE 02 - 24820b

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 - 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