Chicago : Engineering and Contracting Pub. Co. · leaf 298
3 gives values of p I for any length ofstorm. In applying this method, it is necessary tobegin at the extreme inlet of the district andto calculate the runoff, size of sewer, velocityof flow and time of flow in rotation for shortsections of the sewer. Where the main trunk sewers had to he de-signed… … Inty Year Year Inty 1873 19071909AHothenhelo SO I 61 I = Intensity in inches per HourT = Duration in Minutes P= Percentage of Run-off, GL= Run-off in cu fiper sec per Acre Total Rain Resuence fall Distr ct 10 20 30 50 60 70 80Duration 90of 100 HOStor m 120 130 1401 Minutes. 150 160 170 ISO - 190…
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