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MEA100.RE5 <br />CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: <br />TIME OF CONCENTRATION(MIN.) = 8.26 <br />RAINFALL INTENSITY(INCH/HR) = 4.64 <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) = 3.54 <br />TOTAL STREAM AREA(ACRES) = 3.54 <br />PEAK FLOW RATE(CFS) AT CONFLUENCE = 17.85 <br />** CONFLUENCE DATA ** <br />STREAM <br />Q <br />Tc <br />Intensity <br />Fp(Fm) <br />Ap <br />Ae <br />HEADWATER <br />NUMBER <br />(CFS) <br />(MIN.) <br />(INCH/HR) <br />(INCH/HR) <br />(ACRES) <br />NODE <br />1 <br />65.45 <br />7.41 <br />4.939 <br />0.30( 0.03) <br />0.10 <br />14.3 <br />120.00 <br />1 <br />65.20 <br />8.69 <br />4.507 <br />0.30( 0.03) <br />0.10 <br />15.6 <br />110.00 <br />2 <br />17.85 <br />8.26 <br />4.640 <br />0.30( 0.03) <br />0.10 <br />3.5 <br />140.00 <br />RAINFALL <br />INTENSITY <br />AND TIME <br />OF CONCENTRATION RATIO <br />CONFLUENCE FORMULA <br />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 />(CFS) <br />(MIN.) <br />(INCH/HR) <br />(INCH/HR) <br />(ACRES) <br />NODE <br />1 <br />82.49 <br />7.41 <br />4.939 <br />0.30( 0.03) <br />0.10 <br />17.5 <br />120.00 <br />2 <br />83.14 <br />8.26 <br />4.640 <br />0.30( 0.03) <br />0.10 <br />18.7 <br />140.00 <br />3 <br />82.54 <br />8.69 <br />4.507 <br />0.30( 0.03) <br />0.10 <br />19.2 <br />110.00 <br />COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: <br />PEAK FLOW RATE(CFS) = 83.14 Tc(MIN.) = 8.26 <br />EFFECTIVE AREA(ACRES) = 18.74 AREA -AVERAGED Fm(INCH/HR) = 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.10 <br />TOTAL AREA(ACRES) = 19.2 <br />LONGEST FLOWPATH FROM NODE 110.00 TO NODE 160.00 = 2025.00 FEET. <br />---------------------------------------------------------------------------- <br />END OF STUDY SUMMARY: <br />TOTAL AREA(ACRES) = 19.2 TC(MIN.) = 8.26 <br />EFFECTIVE AREA(ACRES) = 18.74 AREA -AVERAGED Fm(INCH/HR)= 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.100 <br />PEAK FLOW RATE(CFS) = 83.14 <br />** PEAK FLOW RATE TABLE ** <br />STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER <br />NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE <br />1 82.49 7.41 4.939 0.30( 0.03) 0.10 17.5 120.00 <br />2 83.14 8.26 4.640 0.30( 0.03) 0.10 18.7 140.00 <br />3 82.54 8.69 4.507 0.30( 0.03) 0.10 19.2 110.00 <br />---------------------------------------------------------------------------- <br />--------------------------------- <br />END OF RATIONAL METHOD ANALYSIS <br />Page 13 <br />