rmine the rate of seepage in cubic feet sec under the dam by drawing flow net to scale ON THE DRAWING and also determine the total uplift force in psf acting at the bottom of the dam at Point B per unit length of dam The permeability of the silty sand is 5 X 10 3 ft sec The drawing is to scale K h 30 f H 40 ft A 5 ft SA 4 601 30 K 5 x 10 3 ft sec Impermeable sand 4 12