Hydropower Engineering past question

Check the stability of the overflow section of the gravity dam shown in figure. Assume the weight of concrete, gates, piers and weight of water over crest, Wtotal=3.0×10⁴kN. Moment of weight of concrete, gates, piers and water above crest etc. about toe Mtoe=10⁶ kN-m. Neglect all forces other than weight, uplift pressure and water pressure. Also check for tension. Take μ=0.75 and q=1400 kN/m². [10]