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RAINFALL INTENSITY(INCH/HR) = 4.02 <br />AREA -AVERAGED Fm(INCH/HR) - 0.03 <br />AREA -AVERAGED Fp(INCH/HR) - 0.30 <br />AREA -AVERAGED Ap = 0.10 <br />EFFECTIVE STREAM AREA(ACRES) = 0.78 <br />TOTAL STREAM AREA(ACRES) = 0.78 <br />PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.80 <br />" CONFLUENCE DATA " <br />STREAM Q Tc Intensity Fp(Fm) <br />NUMBER (CIS) (MIN.) (INCH/HR) (INCH/HR) <br />1 55.32 5.80 5.685 0.30( 0.03) <br />2 2.80 10.61 4.020 0.30( 0.03) <br />Ap Ae HEADWATER <br />(ACRES) NODE <br />0.10 10.9 300.00 <br />0.10 0.8 360.00 <br />RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO <br />CONFLUENCE FORMULA USED FOR 2 STREAMS. <br />" PEAK <br />FLOW RATE <br />TABLE " <br />STREAM <br />Q <br />Tc <br />Intensity <br />Fp(Fm) <br />Ap <br />Ae <br />HEADWATER <br />NUMBER <br />(CIS) <br />(MIN.) <br />(INCH/HR) <br />(INCH/HR) <br />(ACRES) <br />NODE <br />1 <br />57.49 <br />5.80 <br />5.685 <br />0.30( 0.03) <br />0.10 <br />11.3 <br />300.00 <br />2 <br />41.84 <br />10.61 <br />4.020 <br />0.30( 0.03) <br />0.10 <br />11.6 <br />360.00 <br />COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: <br />PEAK FLOW RATE(CFS) - 57.49 Tc(MIN.) - 5.80 <br />EFFECTIVE AREA(ACRES) - 11.30 AREA -AVERAGED Fm(INCH/HR) - 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.10 <br />TOTAL AREA(ACRES) = 11.6 <br />LONGEST FLOWPATH FROM NODE 300.00 TO NODE 370.00 = 652.00 FEET. <br />END OF STUDY SUMMARY: <br />TOTAL AREA(ACRES) - <br />11.6 <br />TC(MIN.) - <br />5.80 <br />EFFECTIVE AREA(ACRES) - <br />11.30 <br />AREA -AVERAGED <br />Fm(INCH/HR)- 0.03 <br />AREA -AVERAGED Fp(INCH/HR) <br />= 0.30 <br />AREA -AVERAGED <br />Ap = 0.100 <br />PEAK FLOW RATE(CFS) - <br />57.49 <br />" PEAK <br />FLOW RATE <br />TABLE " <br />STREAM <br />Q <br />Tc <br />Intensity <br />NUMBER <br />(CIS) <br />(MIN.) <br />(INCH/HR) <br />1 <br />57.49 <br />5.80 <br />5.685 <br />2 <br />41.84 <br />10.61 <br />4.020 <br />END OF RATIONAL METHOD ANALYSIS <br />Fp (IN) <br />(INCH/HR) <br />0.30( 0.03) <br />0.30( 0.03) <br />Ap Ae HEADWATER <br />(ACRES) NODE <br />0.10 11.3 300.00 <br />0.10 11.6 360.00 <br />