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Drainage Calculation Worksheet 1986 ) DRAINAGE CALCULATION WORKSHEET JOB. NAME: 1 P_I-S- _r)1-s ,�y. ans LOCATION: Q C .. JYreu 7�m Cf . _at. DATE _ vI 1861 __.. . DRAlNACE AREA IDENTIFIER 1 AKEA i AREA AREA 3 1 AREA± I AREA 5 I ,ottACD CULVERT Pm 1M 12 IDMN IS- Dcf1H = f ;DNIN * 24 l STRUCTURE LOCATION c u 1 v. r DRAINAGE AREA (ACRES) • 275 1 12. 23 10 . SI 1 3.00 . 3.29 2.2-3 OVERLAND FLON DISTANCE (FEET) 400 1600 1900 I 1Q00 1900 1000 AVERAGE SLOPE (PERCENT) 1,0 I 7,2_ 8.9 I 7.7 G. lath I 0 INLET CONCENTRATION TILE (MINUTES) 7 5 ? 5(0 60 -h (02 (s4 4(D ICS YEAR, ONE HOUR RAINFALL (INCHES) 1,85 I 1'85 ! I.85 1 1, 85 I>85 1, 85 RAINFALL INTENSITY (INCHES PER HOUR) 5.5 I 2.0 1.80 I I.75 1.70 I 2, 2.0 COEFFICIENT OF RUNOFF .95 1 . 10 . 14 1 . 18 .22. . 29 PEAR RUNOFF O =.Aci (CFS) 1.1-1- 2.4S 2 .73 . 44 I 1, 22 I 1.41 DESIGN OUTFLOW ICFS)- 1.44 2.45 3.67 .91- -1 1 . 22. 243 I PIPE. sIZE 12 12 ° 1 IS i2 I 12° 15 - SHEET 1 of 2 ) ) DRAINAGE E CALCULATION WORKSHEET JOB NAME: L, ph,s.__ R tea LOCATION: FAaWE _ brLQ L n 1 DAJ DATE _ 6:3_/(a/PL ) - . . STRUCTURE LOCATION --_-- D.i S D 30 I7cr� r.'r �mN �Z "{ yt�T 2 A ` DRAINAGE AREA IDENTIFIER 8 AREA 9 AREA /0 A &i / .AREA 1'Z' G�7LCE DRAINAGE AREA- (ACRES)_ .-4.81 - . 2.80 , Ill-.. . . 172.- /.ap . OVERLAND FLAN DISTANCE (FEET) //QQ _ / /00 2s0 - 250 _ - .1-GO - .21 0 - INLET CONCENTRATION TINE (MINUTES) 8 _ q- G 23 18 /0 YEAR, ONE HOUR RAINFALL (INCHES) I. gS /. 85 I. 1. 85 1, ps 1' 'RC RAINFALL INTENSITY (INCHES PER HOUR) a,l0 2. OS 6.0 5.9 3,3 - 3,9 -- COEFFICIENT OF RUNOFF. , 10. - I 18 .QS PC 0 , 1 - •10 --- PEA' RUNOFF D = Ad (CFS) 1.01 1,OS s q8 .qq6,;,_.--_,(p0.35 . 31 ) DESIGN OUTFLOW FS) IMI- G t Q'�� 4.G� - 0 '* 3. 9 9 ' > PIPE slt)= _ 12 ° IS" ' 15 '1 /2 " 12,r = 12 ) SHEET 2 of 2