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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />TABLE OF CONTENTS <br />Peterson Dam & Reservoir <br />Page 2 <br /> <br /> PAGE <br />CHAPTER V: PLAN OF DEVELOPMENT 36 <br /> 1.0 Site Inspections 36 <br /> 1.1 General 36 <br /> 1.2 Dam 36 <br /> 1.2.1 Descri pti on 36 <br /> 1.2.2 Crest 37 <br /> 1.2.3 Upstream Face 37 <br /> 1.2.4 Downstream Face 37 <br /> 1.2.5 Seepage 38 <br /> 1.3 Outl et Works 38 <br /> 1.4 Service Spillway 41 <br /> 1.5 Auxiliary Spillway 41 <br /> 1.6 Summary of Deficiencies 41 <br /> 2.0 Geotechnical Evaluation 43 <br /> 2.1 Field Investigation 43 <br /> 2.1.1 General 43 <br /> 2.1.2 Geologic Mapping 43 <br /> 2.1.3 Subsurface Investigation 43 <br /> 2.1.3.1 Dam 45 <br /> 2.1.3.2 Auxiliary Spillway 47 <br /> 2.1.3.3 Reservoir 48 <br /> 2.2 laboratory Testing 48 <br /> 2.3 Slope Stability of Existing Dam 50 <br /> 2.3.1 Procedure 50 <br /> 2.3.2 Pore Pressures 50 <br /> 2.3.3 Material Properties 51 <br /> 2.3.4 Fail ure Surface 54 <br /> 2.3.5 Results 55 <br />