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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 />o Tailwater load. <br /> <br />o Ice load - 10,000 lb/LF applied at reservoir water surface. <br /> <br />o Silt load resulting from: <br />silt level - El. 8554 (500 ac-ft). <br />assumed equivalent to a fluid weighing 85 lb/cu ft. <br /> <br />o Dead load of concrete, assumed to weight 150 lb/cu ft. <br /> <br />o Pseudo-static earthquake loading due to a maximum horizontal <br />acceleration of 0.1 g. <br /> <br />o Uplift forces: <br />No drains - varying linearly from full reservoir pressure <br />at the upstream face to tailwater pressure at the down- <br />stream face. <br />With drains - varying linearly from full reservoir pres- <br />sure at the upstream face to 1/3 of the difference between <br />reservoir pressure and tailwater pressure at the drain <br />location and linearly from the drain location to tailwater <br />pressure at the downstream face. <br /> <br />Both maximum dam cross sections were checked for stability under the <br />following loading conditions: <br /> <br />Case I - Usual Loading Condition <br /> <br />o Dead weight of concrete <br />o Horizontal water load for reservoir water surface El. 8681 <br />o Ice loading <br />o Tailwater El. 8518 (streambed, no flow) <br />o Horizontal silt load <br />o Uplift <br /> <br />3 - 19 <br /> <br />6819W/5020W <br />