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V.. J. IIJ 11.J, .r1 JJJ JOJ UCU 1.II LUCM1 J ~Qrf~ <br />. uriiri rb ua: {a IIauJ~7 rY{a ~ATERAIS lA8 <br />• <br />MEMORANDUM <br />STAFF CONSTRUCTION AND MATERIALS BRANCH <br />GBOTtct rxtc~w S>rcrrox <br />43{0 &vrlau+cuws Ave. • Dervet+. cawno sole • (303) 777.973D • Fnx: (703) 777.92{2 <br />Date: Juty 18,1985 <br />To: Ed Hier, Region 2 Design <br />From: Rick Andrew, Staff Geotechniral Section <br />Paces Psak Mining Co. <br />SH 87, Cripple CreskMcfor <br />SUBJECT: Review of FiII Material Proposal, SH 87 near Cripple Creek <br />As requested, we have reviewed the proposed method and material to be used In the <br />construction of the embankment for SH 87 near Cripple Creek. The proposal was <br />submitted by Golder Associates, Inc. (aef, No. 953.2900.007, Juty 14,1995), end calls <br />for CombiMng materai from the Canton Tailings and processed crushed rock from Pad <br />No. 2. <br />Based on the analysis conducted by Golder Associates, Ina, it appears that the <br />material and recommended method of placement would be suitable for the <br />embankment fill. Althotph the pore water pressure generated by the fill should not <br />pose a problem, we concur with Gilder Associates that a monftaring system would qa <br />beneflcisl in verifying the stability of the embankment during construction. The <br />proposed method of utilizing piezometers is consistent with this type of monitoring <br />program. <br />If you have any questions regarding these comments, please feel free to oontad ms. <br />Reviewed BY Shan-Tai Yeh <br />cc: R. Torres, Rpion 2. <br />W. Cramer <br />J. B. Gilmore <br />T. Mandziak, Golder Assoc. <br />