Laserfiche WebLink
<br /> <br /> <br />-s- <br />and lee permeability Potential when cc+r~nact~. :he urderlyina <br />weathered and competent claystone bedrock has silt any clay contents <br />generally S~$ cr greater but possess ;roderate shear strength character- <br />istics. Vegetation consists of moderate to head brush an•9 scrub oak <br />tree cover. <br />Considering the material tyrks enccur,tered in the nropos-ad borrow <br />area, a ^ndified ho~:ra3eneous en.',~anl~*;cnt appears :.pst feasible. The <br />upper clay soils and weathcrct] bedrock ars sbst suitable for use •aithin <br />tY',e emban;cment section. These materials should orcvi9e an i::~cervious, <br />plastic section, be readily excavataL'le ar' have Sea' workabilit'r. <br />'Ihe underlying claystone bedrocc bemm_a hardor ~:itih 3eoth and will <br />probably re•7uire ripping and considerable r^oror!:in~ to achieve nroner <br />• cronditions for compaction. The sandstone encountered in the north Brea <br />will probably rseuire blasting and crushim to achi°ve satisfactory <br />gra8ation for use as fill material but -gay be suitable for us° as <br />riprap with only minor processing. The topsail should be strin^ea and <br />stockailed for later use during reclamation. <br />EhiSA[IICF,E[dT DESIGPI - SCCI[1CfITATiOW Et:[lru 1 <br />Proposed Construction: The da^rs and sedimentation ponds will be a part <br />of an active ainirx; operation. Gansequently, they will be under <br />surveillances during mining. After mining and reclamation have been <br />completed, the dams can be breached. <br />Fig. 1 shows the location of Dan 1 with respect to the project. <br />• Fig. 3 shows a plan view of the dam and the locations of previously <br />drilled test holes. The dam at Sedimentation Pond 1 will be tho <br />•', :•s' <br />