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<br />geotechnical engineering considerations and site conditions related to construction of the proposed cut/fill slopes <br />and haul roads are included. <br />PROPOSED CONSTRUCTION <br />Based on the plans provided by the client, it appeazs that the portion of the property which is [o be mined is <br />situated to the west of the seasonal drainage which generally flows in a southeast to northwest direction from the <br />southeast corner of the property to the mid point of the north property line. The western edge of the proposed <br />mining azea is [o be situated at least 50 feet from the centerline of [he drainage. The mining area will extend [o <br />~ the south, west and north to the respective property lines. The portion of the property in which the 50 foot wide <br />gas line easement crosses will not be mined. Based on the cross section provided by the client, it appears that the <br />mine pit floor will be constructed at an elevation of approximately 6,591 feet. Based on elevations of surrounding <br />ground, it appears that the depth of the mined area will range from 5 feet along the eastern edge of the site to <br />approximately 30 feet at it's deepest point along the western edge of the property. Based on our discussions with <br />the client and pit operator, C.D. Johnson, it appeazs that the gravels will be mined from a certain portion of the <br />pit until the proposed pit floor elevation has been reached. As the mine excavation progresses outward, the <br />overburden soils (clays) being mined from the new excavation will be placed back in the floor of the pit for <br />reclamation. it is our understanding that the fill placed in the reclaimed areas will be constructed to a <br />3(horizontal) : 1(vertical) or flatter slope configuration. <br />The proposed haul road will begin at the northeast comer of dte property from its intersection with Rout[ County <br />Road #33A (RCR #33A) and proceed to the south for approximately 225 feet along the east property line. The <br />haul road will then [um and proceed in a southwesterly direction for approximately 250 feet and then turn and <br />proceed south for approximately 400 feet. The haul road then proceeds in a southwest and westerly direction <br />across the existing drainage. After the haul road enters the mined area, i[ proceeds approximately 900 feet in a <br />~ northerly direction along the eastern edge of the mined azea. Near the northern edge of the mined area, the haul <br />road turns and heads in a southwestern direction and then runs along the western edge of the mined area. It <br />appears that the haul road will cross the gas line easement in three different locations. <br />SITE CONDITIONS <br />The project site is situated southwest of RCR #33A and approximately 1/2 mile south of U.S. Highway 40 in <br />Routt County, Colorado. The northeast comer of the subject property is situated along the west side of RCR <br />#33A where the county road has been constructed with a 90 degree [urn and changes from anorth-south direction <br />to a west-east direction. <br />• Job No. 98-3564 Nonhwat Colorado Consultants, Inc. Page 2 <br />