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MED100.RE5 <br />OUTSIDE STREET CROSSFALL(DECIMAL) = 0.020 <br />SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 <br />STREET PARKWAY CROSSFALL(DECIMAL) = 0.020 <br />Manning's FRICTION FACTOR for Streetflow Section(curb-to-curb) = 0.0130 <br />Manning's FRICTION FACTOR for Back -of -Walk Flow Section = 0.0200 <br />**TRAVEL TIME COMPUTED USING ESTIMATED FLOW(CFS) = 1.46 <br />STREETFLOW MODEL RESULTS USING ESTIMATED FLOW: <br />STREET FLOW DEPTH(FEET) = 0.26 <br />HALFSTREET FLOOD WIDTH(FEET) = 6.88 <br />AVERAGE FLOW VELOCITY(FEET/SEC.) = 1.24 <br />PRODUCT OF DEPTH&VELOCITY(FT*FT/SEC.) = 0.33 <br />STREET FLOW TRAVEL TIME(MIN.) = 7.95 Tc(MIN.) = 12.95 <br />* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 3.587 <br />SUBAREA LOSS RATE DATA(AMC II): <br />DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS <br />LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN <br />COMMERCIAL B 0.72 0.30 0.100 56 <br />SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.30 <br />SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 <br />SUBAREA AREA(ACRES) = 0.72 SUBAREA RUNOFF(CFS) = 2.31 <br />EFFECTIVE AREA(ACRES) = 0.77 AREA -AVERAGED Fm(INCH/HR) = 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.10 <br />TOTAL AREA(ACRES) = 0.8 PEAK FLOW RATE(CFS) = 2.47 <br />END OF SUBAREA STREET FLOW HYDRAULICS: <br />DEPTH(FEET) = 0.30 HALFSTREET FLOOD WIDTH(FEET) = 8.81 <br />FLOW VELOCITY(FEET/SEC.) = 1.38 DEPTH*VELOCITY(FT*FT/SEC.) = 0.42 <br />LONGEST FLOWPATH FROM NODE 420.00 TO NODE 430.00 = 612.00 FEET. <br />**************************************************************************** <br />FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = 1 <br />---------------------------------------------------------------------------- <br />>>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< <br />>>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< <br />----------------------------------------------------- <br />TOTAL NUMBER OF STREAMS = 3 <br />CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: <br />TIME OF CONCENTRATION(MIN.) <br />= 12.95 <br />RAINFALL INTENSITY(INCH/HR) <br />= 3.59 <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 />= 0.77 <br />TOTAL STREAM AREA(ACRES) = <br />0.77 <br />PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.47 <br />** CONFLUENCE DATA ** <br />Page 7 <br />