Laserfiche WebLink
<br /> <br />NEiI CASTLE ENERGY <br />William P. Van Liew, P.E. <br />12/19/90 <br />Evaluation of SMALL Diameter Pipe Potentially Restricting <br />Area For F1oM Through a Drainage Culvert <br />• <br />Diameter of small pipe = 2 in. nominal <br />Outside diameter of small pipe = 2.375 in.° <br />Outside Area of small pipe = 4.430 in2 = 0.030765 ft2 <br />Diameter of Area of Percentage of Culvert <br />Culvert Culvert Area Taken DP by Small <br />[in.? [ft2) Pipe <br /> <br />12 0.785 3.9$ <br />18 1.767 1.7$ <br />24 3.142 1.0$ <br />36 7.069 0.4$ <br />42 9.621 0.3$ <br />°Reference: Driscoll, Fletcher G., 1986, Groundwater and <br />Wells, Second Edition, Johnson Division, St. <br />Paul, Minnesota 55112, pg. 954, pg 960 <br />• <br />