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2- 31 <br />Sub-base preparation involved the use of a steel roller on 8"lifts of material. Water was <br />I <br />added in an attempt to maintain optimum moisture content of 12%. Fgure 2.2.5 shows the plan <br />view of the McClave Canyon Haul Road along with the longitudinal profile. Also shown are three <br />cross- sections which depict typical cut and fill sections. The side slope for the access/haul <br />road will be approximately 2 horizontal to 1 vertical in the fill area. Typical cross-sections along <br />with design specifics for the road ditches are fo~u~n/d App//le1ndix M. `/ ~~/~((•~ s ~~ <br />~~~ ~//o'~e. ~ c Ni'C,,.Y~•pe SLONti Ow T~"~ / <br />Section C-C of Fgur 2.2-5 s ws a cliff to the South of the road that became unstable and <br />~. <br />,~~ was a safety hazard. The upper portion of the cliff was modified to a gentler slope. The cut <br />~ ~ <br />' necessary to stabilize the slope was a wedge approximately 150 feet long and 0 to 20 feet wide <br />at the top. <br />Haul Road maintenance will be conducted continuously. As needed, berms will be <br />1~~1 <br />~II'~ <br />maintained, drainage ditches cleaned, gravel added, and debris removed. During non-freezing <br />weather dust suppression will include watering and may include dust suppressants such as <br />Magnesium Chloride. <br /> <br />Volume 1 <br />4.29-96 <br />J <br />