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PROJECT: <br />PIPING <br />80.0 <br />22,678.0 <br />735.0 <br />90.0 <br />1 <br />0.7 <br />Large <br />244.3 <br />181.3 <br />1.08 <br />283.5 <br />368367 <br />2.71 <br />226.1 <br />2.8 <br />Bottom Width of Breach (Bb) = <br />Breach Formation Time (Tf) = <br />Average Breach Width Divided by Height of Breach (Bavg/Hb ) = <br />Erosion Rate (ER), Calculated as (Bavg/Tf) = <br />Feet <br />CALCULATED BREACH CHARACTERISTICS: <br />Failure Mode Factor (Ko) = <br />Breach Side-Slope Ratio (Zb) =Z(H):1(V) <br />Assumes Full Reservoir At Time of Breach. <br />Acre-Feet <br />Feet <br />Feet <br />Reservoir Surface Area at Hw (As) =Acres <br />Acre Feet/Foot <br />Hours <br />Cubic Feet per SecondPredicted Peak Flow (Qp) = <br />RESULTS CHECK: <br />If (Bavg/Hb) > 0.6, Full Breach Devlopment is Anticipated <br />If 1.6 < (ER/Hw) < 21, Erosion Rate is Assumed ReasonableErosion Rate Divided by Height of Water Over Base of Breach (ER/Hw) = <br />Storage Intensity (SI) = <br />USING THE FROEHLICH 2008 METHOD <br />ESTIMATION OF DAM BREACH PARAMETERS <br />Continental Reservoir <br />Average Breach Width (Bavg) =Feet <br />BREACH INPUT PARAMETERS: <br />Dam Size Class: <br />Height of water over base elevation of breach (Hw) = <br />Select Failure Mode From Drop-Down Menu: <br />Height of breach (Hb) = <br />Volume of water in the reservoir at the time of failure (Vw) = <br />CONTINENTAL Froehlich.xlsm