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MPA2.OUT <br />INITIAL SUBAREA FLOW-LENGTH(FEET) = 100.00 <br />ELEVATION DATA: UPSTREAM(FEET) = 156.50 DOWNSTREAM(FEET) = 154.50 <br />Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 <br />SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.000 <br />* 2 YEAR RAINFALL INTENSITY(INCH/HR) = 2.264 <br />SUBAREA Tc AND LOSS RATE DATA(AMC II): <br />DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap <br />SCS Tc <br />LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) <br />CN (MIN.) <br />COMMERCIAL B 2.82 0.30 0.100 <br />56 5.00 <br />SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.30 <br />SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 <br />SUBAREA AREA(ACRES) = 2.82 INITIAL SUBAREA RUNOFF(CFS) = <br />5.67 <br />** ADD SUBAREA RUNOFF TO MAINLINE AT MAINLINE Tc: <br />MAINLINE Tc(MIN.) = 7.68 <br />* 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.769 <br />SUBAREA AREA(ACRES) = 2.82 SUBAREA RUNOFF(CFS) = 4.41 <br />EFFECTIVE AREA(ACRES) = 7.69 AREA -AVERAGED Fm(INCH/HR) <br />= 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.10 <br />TOTAL AREA(ACRES) = 7.7 PEAK FLOW RATE(CFS) = <br />12.04 <br />FLOW PROCESS FROM NODE 150.00 TO NODE 160.00 IS CODE = 41 <br />>>>>>COMPUTE PIPE -FLOW TRAVEL TIME THRU SUBAREA<<<<< <br />>>>>>USING USER -SPECIFIED PIPESIZE (EXISTING ELEMENT)<<<<< <br />---------------------------------------------------------------------------- <br />----------------------------------------- <br />ELEVATION DATA: UPSTREAM(FEET) = 141.80 DOWNSTREAM(FEET) = 139.90 <br />FLOW LENGTH(FEET) = 372.00 MANNING'S N = 0.013 <br />DEPTH OF FLOW IN 30.0 INCH PIPE IS 13.6 INCHES <br />PIPE -FLOW VELOCITY(FEET/SEC.) = 5.57 <br />GIVEN PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 <br />PIPE-FLOW(CFS) = 12.04 <br />PIPE TRAVEL TIME(MIN.) = 1.11 Tc(MIN.) = 8.79 <br />LONGEST FLOWPATH FROM NODE 120.00 TO NODE 160.00 = 1276.00 FEET. <br />**************************************************************************** <br />FLOW PROCESS FROM NODE 160.00 TO NODE 160.00 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.) = 8.79 <br />RAINFALL INTENSITY(INCH/HR) = 1.64 <br />AREA -AVERAGED Fm(INCH/HR) = 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 <br />Page 11 <br />