The short horizontal diversion tunnel is 3 m in diameter

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Reference no: EM13640313

You are in charge of the construction site of a new dam. Extremely heavy rainfall starts and Bureau of Meteorology hydrologists tell you that beginning at about 8 AM, 2 GL per hour (2 x 106 m3 per hour) will flow into the dam. The lake behind the dam has approximately vertical walls and a surface area of 1 x 106 m2. At 8 AM, you measure the water level behind the dam: it is 6.5 m below the top of the incomplete dam, and if it overflows, it could sweep away construction equipment on the top. Water from the lake is draining freely and steadily through the dam's diversion tunnel. The short, horizontal diversion tunnel is 3 m in diameter, has its centerline 40 m below the top of the incomplete dam, and exits to atmospheric pressure. How much time have you got to move equipment from the top before it overflows?

Reference no: EM13640313

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