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102-D Oneida Street <br /> Jesik Pueblo,Colorado 81004 <br /> � (719)582-5588 <br /> www.jesik.us <br /> December 17, 2020 <br /> Ms. Julie Welte <br /> Summit Brick Company <br /> RE: Native / Pierre Mine Adequacy Review Comments <br /> Dear Ms. Welte, <br /> Strength testing of the materials were not completed as part of the slope stability analysis, however <br /> they were conservatively estimated from testing completed for the 4' Street Bridge for CDOT. A <br /> summary of the test results from that study are attached to this letter. The slope stability report for the <br /> 4t" Street Bridge was completed by Michael W. West & Associates, Inc. in 2006 and titled: <br /> ENGINEERING GEOLOGIC INVESTIGATION AND <br /> SLOPE STABILITY EVALUATION, FINAL DESIGN PHASE, <br /> PROPOSED 4TH STREET BRIDGE OVER THE ARKANSAS <br /> RIVER, PUEBLO, PUEBLO COUNTY, COLORADO <br /> Slope/W data input information is also attached to the letter. <br /> Sincerely, <br /> Joseph A. Jesik, P.E <br /> Chief Engineer <br /> Attachment A— Table 1 —Summary of Laboratory Test Results, 0 Street Bridge, Southwest Abutment <br /> Evaluation <br /> Attachment B—Slope/W Input Data <br />