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Extracted text: SITUATION. A trapezoidal masonry dam with vertical upstream face is 6 m. high, 0.6m. at the top and 3 m wide at the bottom. Weight of concrete is 23.5 kN/m3. Find the depth of water on the vertical upstream face if the pressure at the toe is twice the average pressure at the base. 5.3 5.0 4.7 4.4