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<br />CONCLUSIONS <br />Based on the subsurface information obtained during this investigation, it appeazs that the use of <br />this property as a gravel mine will have very little affect on the neighboring structures, as well <br />as the high pressure gas line which crosses the subject site, as long as the recommendations <br />outlined in this report are followed for the construction of the gravel pit excavations and haul <br />roads. <br />Based on the results of the field and laboratory investigations, We proposed construction and the <br />slope stability analyses completed by our firm, it appears that the cut slopes constructed during <br />~ the mining of the gravels at the subject site, which are designed withal (horizontal) to 1 <br />(vertical) slope configuration, will exhibit adequate factors of safety against sliding and should <br />be stable on a short term basis, if they are properly dewatered. Permanent cut slopes should be <br />constructed to a 2(horizon[al) : 1 (vertical) configuration. <br />The proposed haul roads to be constructed on the subject property should no[ adversely affect <br />the stability of the adjacent fencelines nor be detrimental to the existing gas line if they are <br />constructed in accordance with the recommendations outlined in this report. <br />Further discussions of the geotechnical considerations related to construction of the proposed <br />cut/fill slopes and haul roads are outlined herein. <br />PURPOSE AND SCOPE OF STUDY <br />This report presents We results of a geotechnical investigation and slope stability evaluation for the proposed <br />• Tellier Gravel Pi[ to be constructed in the NE 1/4 of the NW 1/4 of Section l7, Township 6 North, Range 85 <br />West in Routt County, Colorado. The approximate location of the project site is shown in Figure bl. <br />A field exploration program was conducted [o obtain general information on the subsurface conditions <br />encountered a[ the this site and [o obtain samples of the soils for laboratory testing. The material samples <br />obtained during the subsurface investigation were tested in the laboratory to provide data on the strength, <br />classification and engineering characteristics of the on-site soils. The results of the field and laboratory <br />investigations are presented herein. <br />This report has been prepared [o summarize the data obtained and to present our conclusions and <br />recommendations based on the proposed construction and the subsurface conditions encountered. A discussion of <br />• Job No. 98-3504 Northwest Colorado Consultants, Inc. Page I <br />