Laserfiche WebLink
• Figure 2 Trihydro Flood Calculation, Jubb Creek Culvert, CN= 70 <br />JUBB_70.100 <br />100 Year Design Storm "100 Year Jubb Creek Road Crossing" CN =70 <br />BASIN CHARACTERISTICS <br />DRAINAGE AREA (SQ. MI.) ............ = 7.289 <br />STREAM LENGTH (MI.) ............. = 6.509 <br />ELEVATION DIFFERENCE (FT.) ........... = 1650.000 <br />RUNOFF CURVE NUMBER, CN ........... = 70.000 <br />MINIMUM INFILTRATION LOSS (IN./HR.) ....... = 0.000 <br />PRECIPITATION FOR SPECIFIED NORM <br />ADJUSTED PRECIPITATION FOR SELECTED STORM (IN.) . = 2.70 <br />UNIT HYDROGRAPH PARAMETERS <br />UNADJUSTED TIME OF CONCENTRATION (HR.) ..... = 1.30 <br />ADJUSTED TIME OF CONCENTRATION (HR.) ...... = 1.82 <br />DURATION OF EXCESS RAINFALL., D (HR.) ...... = 0.24 <br />TIME TO PEAK (HR.) .............. = 1.22 <br />BASE TIME (HR.) . = 3.25 <br />QPEAK (PEAK FLOW IN CFS FOR UNIT HYDROGRAPH) .. = 2897.9 <br />RESULTANT HYDROGRAPH VALUES <br />PEAK DISCHARGE (CFS) .............. = 667.54 <br />RUNOFF VOLUME (ACRE -FEET) ............ = 215.42 <br />TIME TO PEAK DISCHARGE (HR) ........... = 13.34 <br />USED SCS TYPE It 24 -HOIJR GENERAL STORM <br />Page 1 <br />• <br />Exh. 24 -1 -4 Revision Date: 03/25/10 <br />Revision No.: PR -03 <br />