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* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 6.186 <br />SUBAREA Tc AND LOSS RATE DATA(AMC II): <br />DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc <br />LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) <br />COMMERCIAL B 1.67 0.30 0.100 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) = 1.67 INITIAL SUBAREA RUNOFF(CFS) = 9.25 <br />** ADD SUBAREA RUNOFF TO MAINLINE AT MAINLINE Tc: <br />MAINLINE Tc(MIN.) = 6.45 <br />* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.349 <br />SUBAREA AREA(ACRES) = 1.67 SUBAREA RUNOFF(CFS) = 7.99 <br />EFFECTIVE AREA(ACRES) = 4.87 AREA -AVERAGED Fm(INCH/HR) = 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.10 <br />TOTAL AREA(ACRES) = 4.9 PEAK FLOW RATE(CFS) = 23.31 <br />++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <br />FLOW PROCESS FROM NODE 140.00 TO NODE 150.00 IS CODE = 41 <br />---------------------------------------------------------------------------- <br />»»>COMPUTE PIPE -FLOW TRAVEL TIME THOU SUBAREA««< <br />»»>USING USER -SPECIFIED PIPESIZE (EXISTING ELEMENT)««< <br />ELEVATION DATA: UPSTREAM(FEET) = 143.60 DOWNSTREAM(FEET) = 141.80 <br />FLOW LENGTH(FEET) = 271.00 MANNING'S N = 0.013 <br />ASSUME FULL -FLOWING PIPELINE <br />PIPE -FLOW VELOCITY(FEET/SEC.) = 5.72 <br />(PIPE FLOW VELOCITY CORRESPONDING TO FULL PIPE CAPACITY FLOW) <br />GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 <br />PIPE-FLOW(CFS) = 23.31 <br />PIPE TRAVEL TIME(MIN.) = 0.79 Tc(MIN.) = 7.24 <br />LONGEST FLOWPATH FROM NODE 120.00 TO NODE 150.00 = 904.00 FEET. <br />+ + <br />DA-A6 <br />+ + <br />++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <br />FLOW PROCESS FROM NODE 150.00 TO NODE 150.00 IS CODE = 82 <br />---------------------------------------------------------------------------- <br />»»>ADD SUBAREA RUNOFF TO MAINLINE, AT MAINLINE Tc, ««< <br />»»>(AND COMPUTE INITIAL SUBAREA RUNOFF)««< <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 />* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 6.187 <br />SUBAREA Tc AND LOSS RATE DATA(AMC II): <br />DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc <br />LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) <br />COMMERCIAL B 2.82 0.30 0.100 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) = 15.63 <br />** ADD SUBAREA RUNOFF TO MAINLINE AT MAINLINE Tc: <br />MAINLINE Tc(MIN.) = 7.24 <br />* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.006 <br />SUBAREA AREA(ACRES) = 2.82 SUBAREA RUNOFF(CFS) = 12.63 <br />EFFECTIVE AREA(ACRES) = 7.69 AREA -AVERAGED Fm(INCH/HR) = 0.03 <br />