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MEB2.OUT <br />---------------------------------------------------------------------------- <br />----------------------------------------- <br />ELEVATION DATA: UPSTREAM(FEET) = 142.00 DOWNSTREAM(FEET) = 137.00 <br />FLOW LENGTH(FEET) = 318.00 MANNING'S N = 0.013 <br />DEPTH OF FLOW IN 24.0 INCH PIPE IS 7.2 INCHES <br />PIPE -FLOW VELOCITY(FEET/SEC.) = 6.84 <br />GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 <br />PIPE-FLOW(CFS) = 5.46 <br />PIPE TRAVEL TIME(MIN.) = 0.77 Tc(MIN.) = 10.64 <br />LONGEST FLOWPATH FROM NODE 250.00 TO NODE 260.00 = 748.00 FEET. <br />**************************************************************************** <br />FLOW PROCESS FROM NODE 260.00 TO NODE 260.00 IS CODE = 1 <br />---------------------------------------------------------------------------- <br />>>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< <br />>>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< <br />----------------------------------------------------- <br />TOTAL NUMBER OF STREAMS = 2 <br />CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: <br />TIME OF CONCENTRATION(MIN.) <br />= 10.64 <br />RAINFALL INTENSITY(INCH/HR) <br />= 1.47 <br />AREA -AVERAGED Fm(INCH/HR) = <br />0.03 <br />AREA -AVERAGED Fp(INCH/HR) = <br />0.30 <br />AREA -AVERAGED Ap = 0.10 <br />EFFECTIVE STREAM AREA(ACRES) <br />= 4.04 <br />TOTAL STREAM AREA(ACRES) = <br />4.04 <br />PEAK FLOW RATE(CFS) AT CONFLUENCE = 5.46 <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 />9.11 <br />9.32 <br />1.583 <br />0.30( 0.03) <br />0.10 <br />5.8 <br />200.00 <br />1 <br />7.79 <br />16.09 <br />1.157 <br />0.30( 0.03) <br />0.10 <br />7.0 <br />230.00 <br />1 <br />7.20 <br />19.22 <br />1.045 <br />0.30( 0.03) <br />0.10 <br />7.2 <br />220.00 <br />2 <br />5.46 <br />10.64 <br />1.468 <br />0.30( 0.03) <br />0.10 <br />4.0 <br />250.00 <br />RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO <br />CONFLUENCE FORMULA USED FOR 2 STREAMS. <br />** PEAK FLOW RATE TABLE ** <br />STREAM <br />Q <br />Tc <br />Intensity <br />Fp(Fm) <br />Ap Ae <br />HEADWATER <br />NUMBER <br />(CFS) <br />(MIN.) <br />(INCH/HR) <br />(INCH/HR) <br />(ACRES) <br />NODE <br />1 <br />14.28 <br />9.32 <br />1.583 <br />0.30( 0.03) <br />0.10 9.3 <br />200.00 <br />2 <br />14.31 <br />10.64 <br />1.468 <br />0.30( 0.03) <br />0.10 10.0 <br />250.00 <br />3 <br />12.07 <br />16.09 <br />1.157 <br />0.30( 0.03) <br />0.10 11.0 <br />230.00 <br />4 <br />11.06 <br />19.22 <br />1.045 <br />0.30( 0.03) <br />0.10 11.2 <br />220.00 <br />COMPUTED <br />CONFLUENCE <br />ESTIMATES ARE AS <br />FOLLOWS: <br />PEAK FLOW <br />RATE(CFS) <br />= <br />14.31 <br />Tc(MIN.) = <br />10.64 <br />EFFECTIVE <br />AREA(ACRES) <br />= <br />10.05 <br />AREA -AVERAGED Fm(INCH/HR) <br />= 0.03 <br />Page 11 <br />