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<br />I <br />II Comanche Dam Rehabilitation <br /> Final Design Report <br />I TABLE OF CONTENTS <br /> Page 1 of 3 <br />I Page <br />I Design Engineer's Checklist <br />I List of References <br />1.0 IIITRODUCTION 1 <br />I 2.0 DAll INSPECTION 2 <br /> 2.1 General 2 <br />I 2.2 Dam 2 <br /> 2.3 Out1 et Works 5 <br /> 2.4 Spillways 8 <br />I 2.5 Sumoary of Deficiencies 9 <br />3.0 GEOTECHNICAL EVALUATION 10 <br />I 3.1 Field Investigation 10 <br /> 3.2 Laboratory Testing 14 <br /> 3.3 Slope Stability of Existing Dam 16 <br />I 3.4 Exisitng Seepage Conditions 21 <br /> 3.5 Recommended Interim Operation Restriction 23 <br /> 4.0 HYDROLOGIC EVALUATION 24 <br />I 4.1 SED Hazard Classification and Spillway <br /> Requirements 24 <br />I 4.2 Infloll Desi gn Flood 24 <br />5.0 DESIGN CRITERIA 28 <br />I 5.1 Genera 1 26 <br /> 5.2 Ef.1bankment Dam 26 <br /> 5.3 Outlet Works 28 <br />I 5.4 Spillway 28 <br /> 6.0 REHABILITATION ALTERNATIVES 29 <br />I 6.1 Technical Alternatives 29 <br /> 6.2 Alternative Selected for Feasibility Design 29 <br />I 6.3 Modifications for Final Desig~ 31 <br />I <br />I 2085H/2 <br />