This drain, with a fall of 18 niches in a mile, will give the following dis-charge. u= 91 t/ ft \ 1/ 72 J -4- 36 - = 80 Inches. 2 x 80 -j- 72 =: 232 Periphery ill inches. 2lbj-_/~ ^ 3g _ 5jg^ Sup_ inches sectional area. 2e 1 flj • . — 22-34 Inches mean hydraulic depth. •91 v/~22-34 X 36 = 25-79… … References, A. Embankment, 15 feet high and 18 feet wide on the top, with a slope of]| horizontal to 1 perpendicular. B. Fuddle Dyke, 12 feet high by 4 It. 6 in. broad. C. Natural bed of the bay. D. Stone wall, the top 4 feet above the embankment. E. High water mark, spring tides; three feet below…
Civil engineering · Architecture
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