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Mora, ~tcon ~~ivis <br />3n;orporoln <br />Engineers-Constructors <br />e9~ <br />April 16, 1985 <br />REF: Certification of Access Haul Road <br />Foidel Creek Mine, Routt County, CO <br />Mr. Richard Wright <br />TWENTYMILE COAL QJMPANY <br />P. O. Box 697 <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />Dear Mr. Wright: <br />During May and June of 1983, our firm performed inspection of the construction <br />of the access haul road at the Foidel Creek Mine. The inspections were per- <br />formed by Don M. Williams, P.E., Project Engineer and Dennis R. Shingleton, <br />Resident Construction Superintendent both of whom are experienced in earthern <br />construction design and supervision. Mr. Williams is a professional engineer <br />registered in the State of Colorado. Mr. Shingleton has over eight years <br />• experience as a construction supervisor/inspector and over 12 years experience <br />as a civil designer. <br />The purpose of the inspection was to ensure proper construction of the access <br />haul road and thereby fulfill requirements of a rnntract between our firm and <br />Twentymile Coal Company, and to satisfy the requirements of Rule 4.03.1 of the <br />Colorado Mined Land Reclamation Board. In completing our certification we have <br />reviewed Proctor and field compaction tests taken by Qten 6 Associates Inc. of <br />Glenwood Springs, Colordo, during constn~ction of the road embankment and <br />gravel surfacing. These tests were taken under a contract with our firm and under <br />the direction of Mr. Shingleton. The access haul road wa.; constructed by Schmueser <br />6 Associates of Glenwood Springs, Colorado. <br />The access haul road and associated cut and fill slopes were stable and evidenced <br />no undue settlement. <br />Tc the bes_ of our knowledge, based upon our professional expertise, the Foidel <br />Creek Mine access t;aul road was constructed in conformance with prudent state- <br />of-the-art road corstruction practices. The access haul road was constructed <br />in corrQliance with the approved design as specified within Section 4.03.1 of the <br />approved permit i'~.o. 79-177 - File No. C-056-82) depicted upon drawings CO-FD-51- <br />83105 Rev. 1 Plan and Profile, CO-FD-51-83106 kec. 1 Plan and Profile, <br />CO-FD-51-83106 Re~•. 1 Typical Sections and a_= rege:ired by the constructirn <br />contrac~ specif=cation SP-499-C-100 Sitework and Roadway Construction. <br /> <br />375 Chipeta Way - P.O. Box 8009 ~ Salt Lake City, lJtah 84108 <br />(801) 583-3773 Telex 38-6312 <br />