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estt.oioraao t.onsuitants <br />Geotechnical l Environmental Engineering • Materials Testing <br />October 26, 1995 <br />Twentymile Coal Compaay <br />29515 RCR #27 <br />Oak Creek, CO 80467 <br />A[[n: Mr. Rick Mills <br />Subject: Pavement Evaluation & <br />Recommendations, EMD Bleeder Shaft <br />Access Road Foidel Creek Mine, Routt <br />County, Colorado. <br />Gentlemen: <br />This report presents the results of a pavement evaluation and recommendations for the EMD Bleeder <br />Shah Site Access Road to be constructed on the Foidel Creek Mine property in Routt County, <br />Colorado. <br />• Afield exploration program was conducted to obtain information on the subgrade conditions at [be <br />site. Material samples obtained during the subsurface investigation were tested in the laboratory to <br />provide data on the classification and engineering characteristics of the subgrade soils. The results of <br />the field and laboratory investigations are presented herein. <br />This report has been prepazed to sttmmarize the data obtained and to present our conclusions and <br />recommendations, based on the existing conditions encountered and the assumed traffic loadings. A <br />discussion of geotechnical engineering considerations related to construction of the access road are <br />also included. <br />We understand that this road will be approximately 600 to 700 feet in length. The access road will <br />generally be limited to pickup traffic and occasional delivery trucks or construction vehicles. <br />Subsurface Conditions: The field investigation For this project was conducted on August 2, 1995. Five <br />(5) test holes were advanced at the site to explore the subgrade conditions and [o obtain samples for <br />laboratory testing. The test holes were drilled with attack-mounted drill rig utilizing 4-inch diameter <br />augers. The test holes were advanced to depths ranging From 20 to 40 fee[. The test holes were logged <br />by a representative of Northwest Colorado Consultants, Inc. Graphic logs of the test holes are not <br />drawn; however, a discussion of the subgrade soil types encountered in the test holes are presented <br />later in this report. <br />• Samples obtained from the test holes were examined and classified in the laboratory by the project <br />engineer. Laboratory testing included standard property tests, such as natural moisture contents, dry <br />(970) 879.7888 • Fax (970) 879.7891 <br />29585 U.S. 40 West, Box 775226 • Steamboat Springs, CO 80477 ~ ~,~(~ <br />