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Holnam, Inc. Terracon <br />ELI Project No. 20945006 <br />3. Embankment should not be placed over frozen ground. <br />• Shrinkage: For balancing grading plans, estimated shrink or swell of soils and bedrock <br />when used as compacted fill following recommendations in this report are as follows: <br />Material <br />Estimated Shrink(-) :iwell (+) <br />Based on ASTM D698 <br />On-site bedrock materials: <br />Sandstone ................................ + 10 to + 15 <br />• SI_ Does: <br />For permanent slopes in compacted fill areas based on the slope stability <br />analyses, recommended maximum configurations for on-site materials are <br />as follows: <br />Material <br />Maximum Slope <br />Horizontal:Ven~cal <br />Overburden sandstone material .................... 1 y.:1 <br />GENERAL COMMENTS <br />It is recommended that the Geotechnical Engineer be retained to provide a general review of final <br />design plans and specifications in order to confirm that grading recommendations have been <br />interpreted and implemented. In the event that any changes of the proposed project are planned, <br />the conclusions and recommendations contained in this report should be reviewed and the report <br />modified or supplemented as necessary. <br />J The Geotechnical Engineer should also be retained to provide services during the grading phase <br />J of the work. Construction testing, including field and laboratory evaluation of fill materials should <br />J be performed to determine whether applicable project requirements have been met. It would be <br />logical for Empire Laboratories, Inc. to provide these additional services since eve are most <br />qualified to determine consistency of field conditions with those data used in our analyses. <br />J <br />5 <br />