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62 <br /> Time <br /> rainfall Concentration ion Calculations <br /> !S 2-year,24 ho depth ) m <br /> I ,'/ \` 1 / / ) / I l/ Catchment Flow Regime Length Land Cover Roughness Start Elev. End Elev. Average Slope Hydraulic Radius Time(min) <br /> / /J /) I�_\ ` �/ 1 Sheet Flow 100 Woods 0.4 540.0 528.0 0.12 9.97 Y <br /> 1 Channel Flow 428 Swale 0.2 528.0 518.0 0.02 0.25 15.79 a e'J // / / /J / (/ / ♦\ / / I I / / \ 1 Channel Flow 80 Pipe 0.012 518.0 516.0 0.03 1.25 0.06 e w <br /> 1 Shallow Concentrated Flow 154 Unpaved 516.0 506.0 0.06 0.62 ��r n = Z <br /> Channel Flow 231 Stream 0.04 506.0 502.0 0.02 0.50 1.25 _ O <br /> a. <br /> TOTAL / 27.69 0- <br /> EE <br /> 100 SHEET. 1' I <br /> 'FLOW 012%,i <br /> \ M 'nm�wn pus / r^!,O JCLF�/ ((// 1 / i / \ ✓ / -1 /, l-`\`' \ i �i-\\ ,�i •�5 S= <br /> / - n� J \ / // I / 1 528.8 <br /> CI <br /> > <br /> ^428' CHANNEL <br /> FLOW ® 2% <br /> or 11005- <br /> 117 <br /> EKISTING X. <br /> URAVEL <br /> DRIVE < <br /> J / / <br /> 80 PIPE 1 l// .�� , I I ♦��r�^ i ,/ I / Ifr / / ___J <br /> FLOW ® 3% <br /> a 154' CHANNEL' er I I <br /> M _ FLOW 0 6 _( \ - �^ -\ 1 \\ - /` / / /(J / <br /> �9- DATE: <br /> 2024 <br /> ��'// HORIZ.SCALE: <br /> -- ---------- <br /> _ �_ VERT.SCALE: <br /> /\ _/ '- \ ♦_ \\�^J---- / I j /-" Zi N/A <br /> O l /') \>_ \ =� �. / % c� \ )� - ,J j / \✓ PROJ.MANAGER: <br /> o[ - �/\ \/ 1 �- lam- e�-�/ �,.�r----- - <br /> \^ �` ``�\-` ---�\\ \\ °mw \` �� / �� _, 'y- Curve Number Calculations a� DRAWN BY: <br /> POI 1'\- .J-- �_-_ W z PROJECT NO: <br /> - _ 231 CHANNEL �,. �� <br /> a -\`'�-- \ FLOW ® 2% ° "` ♦--� \---\,� �`� x Catchment Area(ac.) LandCover HSG Curve Number Composite CN A <br /> 6 `- - ��\ ` ,I -- <br /> 17 <br /> -\ `\ -♦� \� `� -� / 1 0.01 Impervious B 98 1.0 E'' <br /> w �� \/ -\ \\ A DRAWING NAME: <br /> 1 0.95 Gravel,Fair B 85 80.8 . <br /> O \- \ t i �1` - `- ``-_----\\ �\ \\ �\ SWM-30015.DWG <br /> --_r✓ ` _ 1 4.36 Woods,Fair B 60 261.9 <br /> o \ '-'\ \ \� \� / -\�- ---- ♦ \ SHEET NO. <br /> Lu <br /> 1 \ `�� \- -\ ♦ _ \\ \ \� 1 2.30 Open Space,Fiar B 69 158.7 <br /> /\ <i �.-����^�__-- `\\- ----/�`- \ \\-/---__\��� ` \\\ ��\ TOTAL 1 7.62 65.88 EX-2 <br /> ^\ J�� Rounded CN 66 <br /> V <br /> N - \i l I / l irk i _ \ ✓�\\ �_�\ �" --\/�_�� �� ���\ �I \\ \\ ���^--- I I lli 1,111 "> <br />