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Bowie Mine, Terror Creek Reservoir Area <br />Pre-Subsidence Inspection <br />• <br />PROJECT NO. 27-218 <br />C , L• <br />eAl <br />_ 'P; <br />POP- <br />. . yam?{{.. ??rL? y?1}.+: ?"[r' ,. 'C +.•?.. Y <br />44 4 * <br />V'r <br />Z, K?l <br />7,1 <br />-0. INS Arte > <br />• 4 '' } <br />Photo #19. crest of main dam Iookina east from west abutment <br />Area 4 includes the Bruce Park Landslide area up to and including the upper <br />slide scarp features. Instrumentation has been installed as part of two separate <br />studies on the stability of this existing landslide feature. Movement of the <br />landslide was first noticed shortly after construction of the reservoir and slope <br />movement has been documented throughout the study periods. Monitoring of the <br />instrumentation is continuing as of this writing date. A 2002 report by GEI <br />Consultants and a 2006 report by Yeh and Associates, Inc. are referenced at the <br />end of this report. Appendix A contains the most recent reading set for the <br />inclinometers and peizometers installed as part of the 2006 report. The <br />inclinometer data has been provided by Rock Logic Consulting, LLC of <br />Cedaredge, Colorado. <br />• <br />13