Laserfiche WebLink
APPENDIX 2.05.3-5A <br />• CULYERT AND RUNOUT YELOCITY CALCULATIONS <br />10-YEAR, 24-HOUR STORM EVENT <br />SUN COAL COMPANY - MEADOWS N0. 1 <br />ROUTT COUNTY, COLORADO <br />• <br />Culvert No. 2 <br />CMP Diameter 1.5 feet <br />n = .024 So = .05 <br />Q = .06 cfs <br />Qn <br />Yo~Sp~ <br />(.06)(.024) <br />Yo.~ ( .05 <br />0014 <br />Y~o,~. (.22) <br />.22 Yo ~ _ .0014 <br />Yoh _ .O1 <br />Yo = .17 <br />_ .11 <br />R = .0695 <br />D <br />R = .10 <br />y = 1n49 (R) ~ (S~) <br />V = ~~ (.10) ~ (.05~) <br />V = 62.08 (.22)(.22) <br />V = 3.05 feet per second (fps) <br />• <br />n = Mannings roughness coefficient <br />So =slope (ft/ft) <br />Q =discharge.(cubic feet per second) <br />V =velocity (feet per second - fps) <br />R =hydraulic radius (in feet) <br />D =diameter of pipe (in feet) <br />Yo =depth (in feet) <br />- 224 - <br />(Rev. 5/86) <br />