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<br />. Cottage Villas
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<br />PROJECT NO, 92-111
<br />ORIFICE LOCATION: Sedimentadon Pond Outlet
<br />CALCULATIONS BY: CNC
<br />DATE: 10-29-92
<br />FILE: ORIFICEWR1
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<br />ORIFICE DESIGN
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<br />Peak AlIo\'llable Outflow Rate 1,6 CFS IORIFICE TYPE COEFFICIENT I
<br />Normal Water Elevation 683.5 MSL I Sharp-Edged 0,62 I
<br />High Waler Elevation 885,5 MSL Round-Edged 0,98
<br />OrifICe Coefficient 0,62 Shon Tubes:
<br />Orifice Diameter 6,0 Inches Fluid Separation 0,61
<br />No Fluid Separation 0,82 I
<br />DESIGN: Rounded Entrance 0.97
<br />Calculated OrifICe Diameter 6,0 Inces Reentrant L < 1/2 D 0,54
<br />OrifICe Radius 0,25 Feel Reentranl L = 2-3 D 0,72
<br />Peak Outflow Rate 1.3 CFS Smooth Ta ered Nozzle 0,98
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<br />STAGE-DISCHARGE TABLE
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<br />. I DEPTH INCREMENT 0,10 FEET I
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<br />ELEVATION DEPTH I DISCHARGE IELEVATION i DEPTH i DISCHARGE I
<br />883,50 0.00 NA 885.20 i 1.70 ! 1,2
<br />883,60 0.10 NA I 885,30 I 1,80 I 1,2
<br />883.70 0.20 NA I 885.40 I 1,90 I 1,3\
<br />883.80 I 0_30 I NA 885,50 I 2,00 ! 1.3 .
<br />883,90 I 0,40 I NA I 885,60 2,10 I 1.3 I
<br />I 884,00 I 0,50 I 0,5 I I 885.70 I 2,20 I 1.4 I
<br />I 884.10 I 0,60 I 0,6 I I 885,80 I 2,30 I 1,4 I
<br />884,20 i 0.70 I 0.7 I I 885,90 I 2,40 I 1.4 I
<br />884,30 ! 0,80 ! 0.7 I i 886,00 ! 2.50 ! 1,5 I
<br />I 884.40 i 0,90 i 0,8 I I 886,10 i 2,60 i 1,5 i
<br />I 884.50 I 1,00 I 0,8 I I 886,20 : 2.70 I 1,5 I
<br />I 884,60 I 1,10 ! 0,9 ! I 886,30 I 2.80 I 1.6 I
<br />I 68' - - 1 no ' 1 0 ' I 8M - 40 ' 2 90 ' 1 - ,
<br />".IV :L I ' lOb, I ,I ,b I
<br />884,80 I 1.30 I 1,0 I I 886,50 I 3,00 i 1,6 i
<br />884,90 I 1.40 I 1.0 I I 886,60 I 3,10 I '1.6 I
<br />I 885.00 I 1,50 i 1,1 i I 886.70 I 3.20 i 1.7 i
<br />885.10 1.60 I 1,1 I I 886,80 1 3,30 ! 1.7 I
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<br />NOTE: " NA" INDICATES THAT THE DEPTH IS LESS THAN THE DIAMETER OF THE ORIFICE
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