Laserfiche WebLink
Finally, detailed site conditions identified during construction at the RPEE and as a result of repairs <br />to the Haul Road HR -1 slump area require that modifications be made to the drainage plan and <br />sediment ditch design. Additional information concerning the conditions and the revised design is <br />included in this report. <br />1.2 Report Organization <br />This section presents project background and report organization. <br />Section 2 summarizes the following: <br />• Information uncovered during excavation of the Haul Road HR -1 slide <br />• Characterization of site features <br />• Summary of construction activities and testing results <br />• Record information for the final repair and slope stability analysis <br />Section 3 presents proposed installation of mirrors, inclinometers, and piezometers for the haul road, <br />buttress and RPEE refuse areas to monitor for potential slope movement. <br />Section 4 presents modifications to the RPEE drainage plan, including changing the routing of runoff <br />and sediment drainage, as well as revised design of the sediment ditch and clearwater ditch. <br />P:\Mpls\06 CO\26\06261003 Haul Road Slide Repair\WorkFiles\Report\MCC_Slump_Repatr-Instrumentation-Drain Rev 2012-12-12.doex 2 <br />