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<br />Sediment Capacity - The amount of reservoir capacity al lowed for the deposition of sediment. <br /> <br />Separable Cost - The cost associated with a function of a multi purpose project which Is the <br />difference between the project cost with and without the function. <br /> <br />. <br /> <br />Side Channel Basin - Low depression areas along a river channel which can be used to s1~re <br />floodwater to reduce the flow in the river channel. <br /> <br />Sp! I Iway Capacltv - The rate of flow In cubic feet per second that a spl Ilway can discharge <br />under maximum water surface conditions. <br /> <br />Spol I Bank l.evees - A levee constructed from material excavated at the site from the channel <br />for the purpose of preventing floodwater encroachment beyond this dike. <br /> <br />State Costs - Costs assigned to a state agency. <br />half of the separable cost of providing land and <br />fish and wi Idllfe and associated Interest during <br /> <br />Usually involves, but not limited <br />faci Ilties for the enhancement of <br />construction. <br /> <br />to, one <br />recreation, <br /> <br />Storm Event - The runoff producing storm usually expressed as a frequency or percent of chance. <br />Sol I Conservation Service design normally uses a 6-hour duration 25-year frequency storm. <br /> <br />Streamflow Depletion - Decrease In the amount of water within a certain stream reach. It Is <br />the inflow minus the outflow. <br /> <br />Surcharqe Storaqe - Temporary reservoir storage 'from the maximum water surface elevation down <br />to the highest of the fol lowing elevations. <br /> <br />8. Top of exclusive flood control cap~clty <br />b. Top of joint use capacity <br />c. Top of active conservation capacity <br /> <br />xii <br /> <br />. <br />