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Newmont-Cripple Creek&Victor Gold Mine <br /> Technical Specification No.00508.DOCX <br /> Squaw Gulch VLF <br /> Project No.475.0106.006 <br /> June 15,2016 <br /> SECTION 00508.0 TIMBER WALL FACING <br /> 1. PART 1: GENERAL <br /> 1.1. Scope <br /> The CONTRACTOR shall be responsible for removal and salvage of existing crib wall timbers, <br /> transportation of timbers to new wall location, and installation of the timbers as a wall facing <br /> for the MSE wall. Design concepts are provided in the plan documents for timber facing <br /> connections, but the CONTRACTOR is responsible for the final connection scheme. <br /> 1.2. Construction Sequence <br /> A. A pre-construction conference is required before construction begins. At this <br /> conference, the CONTRACTOR shall have a plan prepared for the staging/timing of the <br /> construction sequences; means, methods, and details showing the connection of the <br /> timbers to the MSE facing; details showing timber spiking plan; and product details for <br /> all steel, timber and concrete being used. The DESIGN ENGINEER shall approve these <br /> details prior to the CONTRACTOR ordering and fabricating any components. <br /> B. After the original SH 67 is permanently closed to traffic, remove the existing crib wall, <br /> salvaging reusable timbers. During removal operations, the CONTRACTOR shall <br /> consider how to reassemble the timbers as shown on the plans. Consider tagging and <br /> photographing the existing wall in its current location. <br /> 1.3. Facing Requirements <br /> A. The wall facing shall be composed of timbers salvaged from the existing crib wall on <br /> SH 67. <br /> a. Prior to placement, the CONTRACTOR shall verify that the timbers used are free of <br /> rot, deterioration, and major longitudinal or transverse cracking. <br /> b. Longitudinal timbers shall be at least 8 feet long and shall be connected to a <br /> minimum of two transverse timber-facing units. See the plan documents for <br /> details. <br /> c. Transverse timbers shall be cut from existing historic timbers and shall overhang <br /> the longitudinal members a minimum of 4 inches. <br /> B. Connections <br /> a. Connect longitudinal timbers to the MSE facing in at least four locations per timber. <br /> Connections will consist of a galvanized metal strap secured to the MSE facing and <br /> to the longitudinal timbers. The ENGINEER shall approve the connection details. <br /> b. Transverse timber facing units shall be secured in at least one place with a drive <br /> spike to the timber below. <br /> Page 1 <br />