Loading...
HomeMy WebLinkAboutWPO201400093 Calculations 2015-02-24 1 Watershed Model Schematic HydraflowHydrographsbylntelisolvev9.2 O-Developed Total to Culvert -.st Dev. DA5 -.st Dev DA4 OSST Dev DA6 5-POST Total To Storm Sewer FINAL Grp ruary 24, 201Se 0 JIMMY L. TAGGART ►.. 0 (CERTIFICATE) No. 22841 SIGNAL Project: CrozetSRTSprepostRATIONALfeb2015.gpw Tuesday, Feb 24, 2015 r } 2 Hydrograph Summary Report Hydraflow Hydrographs by Intelisolve v9.2 Hyd. Hydrograph Peak Time Time to Hyd. Inflow Maximum Total Hydrograph No. type flow interval peak volume hyd(s) elevation strge used description (origin) (cfs) (min) (min) (cuft) (ft) (cuft) 1 Rational 8.756 1 17 11,924 ---- Pre-Developed Total to Culvert 2 Rational 6.408 1 17 8,726 ---- Post Dev. DA5 3 Rational 2.458 1 9 1,864 ---- Post Dev DA4 4 Rational 0.970 1 6 466 ---- POST Dev DA6 5 Combine 7.555_ 1 17 10,886 2, 3,4 POST Total To Storm Sewer CrozetSRTSprepostRATIONALfeb2015.gp tReturn Period: 2 Year Tuesday, Feb 24, 2015 3 Hydrograph Report Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 1 Pre-Developed Total to Culvert Hydrograph type = Rational Peak discharge = 8.756 cfs Storm frequency = 2 yrs Time to peak = 17 min Time interval = 1 min Hyd. volume = 11,924 cuft Drainage area = 4.820 ac Runoff coeff. 0.55* Intensity = 3.303 in/hr Tc by TR55 = 17.00 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 Composite(Area/C)=[(3.880 x 0.50)+(0.280 x 0.70)+(0.660 x 0.80)]/4.820 Pre-Developed Total to Culvert Q (cfs) Q (cfs) Hyd. No. 1 --2 Year 10.00 10.00 8.00 • 8.00 6.00 6.00 4.00 - • 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Time (min) Hyd No. 1 TR55 Tc Worksheet 4 Hydraflow Hydrographs by Intelisolve v9.2 Hyd. No. 1 Pre-Developed Total to Culvert Description A B C Totals Sheet Flow Manning's n-value = 0.240 0.011 0.011 Flow length (ft) = 200.0 0.0 0.0 Two-year 24-hr precip. (in) = 3.70 0.00 0.00 Land slope (%) = 5.60 0.00 0.00 Travel Time (min) = 15.31 + 0.00 + 0.00 = 15.31 Shallow Concentrated Flow Flow length (ft) = 496.00 0.00 0.00 Watercourse slope (%) = 5.60 0.00 0.00 Surface description = Unpaved Paved Paved Average velocity (ft/s) = 3.82 0.00 0.00 Travel Time (min) = 2.17 + 0.00 + 0.00 = 2.17 Channel Flow X sectional flow area (sqft) = 0.00 0.00 0.00 Wetted perimeter (ft) = 0.00 0.00 0.00 Channel slope (%) = 0.00 0.00 0.00 Manning's n-value = 0.015 0.015 0.015 Velocity (ft/s) = 0.00 0.00 0.00 Flow length (ft) = 0.0 0.0 0.0 Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00 Total Travel Time, Tc 17.00 min Hydrograph Report 5 Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24, 2015 Hyd. No. 2 Post Dev. DA5 Hydrograph type = Rational Peak discharge = 6.408 cfs Storm frequency = 2 yrs Time to peak = 17 min Time interval = 1 min Hyd. volume = 8,726 cult Drainage area = 3.880 ac Runoff coeff. €,0.5 Intensity = 3.303 in/hr Tc by TR55 = 17.00 minr�,'r IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 "« Post Dev. DA5 Q (cfs) Q (cfs Hyd. No. 2 --2 Year ) 7.00 7.00 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Hyd No. 2 Time (min) TR55 Tc Worksheet 6 Hydraflow Hydrographs by Intelisolve v9.2 Hyd. No. 2 Post Dev. DA5 Description A B C Totals Sheet Flow Manning's n-value = 0.240 0.011 0.011 Flow length (ft) = 200.0 0.0 0.0 Two-year 24-hr precip. (in) = 3.70 0.00 0.00 Land slope (%) = 5.60 0.00 0.00 Travel Time (min) = 15.31 + 0.00 + 0.00 = 15.31 Shallow Concentrated Flow Flow length (ft) = 496.00 0.00 0.00 Watercourse slope (%) = 5.60 0.00 0.00 Surface description = Unpaved Paved Paved Average velocity (ft/s) = 3.82 0.00 0.00 Travel Time (min) = 2.17 + 0.00 + 0.00 = 2.17 Channel Flow X sectional flow area (sqft) = 0.00 0.00 0.00 Wetted perimeter (ft) = 0.00 0.00 0.00 Channel slope (%) = 0.00 0.00 0.00 Manning's n-value = 0.015 0.015 0.015 Velocity (ft/s) = 0.00 0.00 0.00 Flow length (ft) = 0.0 0.0 0.0 Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00 Total Travel Time, Tc 17.00 min Hydrograph Report ' Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 3 Post Dev DA4 Hydrograph type = Rational Peak discharge = 2.458 cfs Storm frequency = 2 yrs Time to peak = 9 min Time interval = 1 min Hyd. volume = 1,864 cuft Drainage area = 0.720 ac Runoff coeff. = 0.8 Intensity = 4.268 in/hr Tc by TR55 = 9.47 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 Post Dev DA4 Q (cfs) Q cfs Hyd. No. 3 --2 Year Q (cfs) 3.00 3.00 2.00 2.00 1.00 1.00 //t—/ 0.00 - - e.' 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 3 Time (min) TR55 Tc Worksheet 8 Hydraflow Hydrographs by Intelisolve v9.2 Hyd. No. 3 Post Dev DA4 Description A B C Totals Sheet Flow Manning's n-value = 0.240 0.011 0.011 Flow length (ft) = 50.0 0.0 0.0 Two-year 24-hr precip. (in) = 4.00 0.00 0.00 Land slope (%) = 3.60 0.00 0.00 Travel Time (min) = 5.79 + 0.00 + 0.00 = 5.79 Shallow Concentrated Flow Flow length (ft) = 850.00 0.00 0.00 Watercourse slope (%) = 3.60 0.00 0.00 Surface description = Paved Paved Paved Average velocity (ft/s) = 3.86 0.00 0.00 Travel Time (min) = 3.67 + 0.00 + 0.00 = 3.67 Channel Flow X sectional flow area (sqft) = 0.00 0.00 0.00 Wetted perimeter (ft) = 0.00 0.00 0.00 Channel slope (%) = 0.00 0.00 0.00 Manning's n-value = 0.015 0.015 0.015 Velocity (ft/s) = 0.00 0.00 0.00 Flow length (ft) = 0.0 0.0 0.0 Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00 Total Travel Time, Tc 9.47 min • Hydrograph Report s Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 4 POST Dev DA6 Hydrograph type = Rational Peak discharge = 0.970 cfs Storm frequency = 2 yrs Time to peak = 6 min Time interval = 1 min Hyd. volume = 466 cuft Drainage area = 0.280 ac Runoff coeff. = 0.7 Intensity = 4.951 in/hr Tc by TR55 = 6.00 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 POST Dev DA6 Q (cfs) Q (cfs) Hyd. No. 4 --2 Year 1.00 1.00 0.90 0.90 0.80 0.80 0.70 0.70 0.60 0.60 0.50 0.50 0.40 0.40 0.30 0.30 0.20 0.20 0.10 0.10 0.00 0.00 0 2 4 6 8 10 12 14 16 Hyd No. 4 Time (min) TR55 Tc Worksheet 10 Hydraflow Hydrographs by Intelisolye v9.2 Hyd. No. 4 POST Dev DA6 Description A B C Totals Sheet Flow Manning's n-value = 0.240 0.011 0.011 Flow length (ft) = 50.0 0.0 0.0 Two-year 24-hr precip. (in) = 3.70 0.00 0.00 Land slope (%) = 4.00 0.00 0.00 Travel Time (min) = 5.78 + 0.00 + 0.00 = 5.78 Shallow Concentrated Flow Flow length (ft) = 125.00 0.00 0.00 Watercourse slope (%) = 2.50 0.00 0.00 Surface description = Paved Paved Paved Average velocity (ft/s) = 3.21 0.00 0.00 Travel Time (min) = 0.65 + 0.00 + 0.00 = 0.65 Channel Flow X sectional flow area (sqft) = 0.00 0.00 0.00 Wetted perimeter (ft) = 0.00 0.00 0.00 Channel slope (%) = 0.00 0.00 0.00 Manning's n-value = 0.015 0.015 0.015 Velocity (ft/s) = 0.00 0.00 0.00 Flow length (ft) = 0.0 0.0 0.0 Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00 Total Travel Time, Tc 6.00 min Hydrograph Report 11 Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 5 POST Total To Storm Sewer Hydrograph type = Combine Peak discharge = 7.555 cfs Storm frequency = 2 yrs Time to peak = 17 min Time interval = 1 min Hyd. volume = 10,886 cuft Inflow hyds. = 2, 3, 4 Contrib. drain. are 4.880 ac POST Total To Storm Sewer Q (cfs) Q (cfs) Hyd. No. 5 --2 Year 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 'Al 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Time (min) Hyd No. 5 swim Hyd No. 2 Hyd No. 3 Hyd No. 4 • 12 Hydrograph Summary Report Hydraflow Hydrographs by I ntelisolve v9.2 Hyd. Hydrograph Peak Time Time to Hyd. Inflow Maximum Total Hydrograph No. type flow interval peak volume hyd(s) elevation strge used description (origin) (cfs) (min) (min) (cuft) (ft) (cuft) 1 Rational 11.40 1 17 15,528 ---- Pre-Developed Total to Culvert 2 Rational 8.345 1 17 11,364 ---- Post Dev. DA5 3 Rational 3.169 1 9 2,404 ---- Post Dev DA4 4 Rational 1.250 1 6 601 ---- POST Dev DA6 5 Combine 9.824 1 17 14,148 2, 3,4 POST Total To Storm Sewer CrozetSRTSprepostRATIONALfeb2015.gpv■Return Period: 10 Year Tuesday, Feb 24, 2015 Hydrograph Report 13 Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24, 2015 Hyd. No. 1 Pre-Developed Total to Culvert Hydrograph type = Rational Peak discharge = 11.40 cfs Storm frequency = 10 yrs Time to peak = 17 min Time interval = 1 min Hyd. volume = 15,528 cuft Drainage area = 4.820 ac Runoff coeff. = 0.55* Intensity = 4.302 in/hr Tc by TR55 = 17.00 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 *Composite(Area/C)=[(3.880 x 0.50)+(0.280 x 0.70)+(0.660 x 0.80)]/4.820 Pre-Developed Total to Culvert Q (cfs) Hyd. No. 1 -- 10 Year Q (cfs) 12.00 - 12.00 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Hyd No. 1 Time (min) 14 Hydrograph Report Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 2 Post Dev. DA5 Hydrograph type = Rational Peak discharge = 8.345 cfs Storm frequency = 10 yrs Time to peak = 17 min Time interval = 1 min Hyd. volume = 11,364 cult Drainage area = 3.880 ac Runoff coeff. = 0.5 Intensity = 4.302 in/hr Tc by TR55 = 17.00 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 Post Dev. DA5 Q (cfs) Hyd. No. 2 -- 10 Year Q (cfs) 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Hyd No. 2 Time (min) 15 Hydrograph Report Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24, 2015 Hyd. No. 3 Post Dev DA4 Hydrograph type = Rational Peak discharge = 3.169 cfs Storm frequency = 10 yrs Time to peak = 9 min Time interval = 1 min Hyd. volume = 2,404 cuft Drainage area = 0.720 ac Runoff coeff. = 0.8 Intensity = 5.502 in/hr Tc by TR55 = 9.47 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 Post Dev DA4 Q (cfs) Q (cfs) Hyd. No. 3 -- 10 Year 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 3 Time (min) ■ 16 Hydrograph Report Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 4 POST Dev DA6 Hydrograph type = Rational Peak discharge = 1.250 cfs Storm frequency = 10 yrs Time to peak = 6 min Time interval = 1 min Hyd. volume = 601 cuft Drainage area = 0.280 ac Runoff coeff. = 0.7 Intensity = 6.378 in/hr Tc by TR55 = 6.00 min IDF Curve = Albmrle.IDF Asc/Rec limb fact = 1/1.67 POST Dev DA6 Q (cfs) Hyd. No. 4 -- 10 Year Q (cfs) 2.00 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 Hyd No. 4 Time (min) Hydrograph Report 17 Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24,2015 Hyd. No. 5 POST Total To Storm Sewer Hydrograph type = Combine Peak discharge = 9.824 cfs Storm frequency = 10 yrs Time to peak = 17 min Time interval = 1 min Hyd. volume = 14,148 cult Inflow hyds. = 2, 3, 4 Contrib. drain. are 4.880 ac POST Total To Storm Sewer Q (cfs) Q (cfs) Hyd. No. 5 -- 10 Year 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Time (min) Hyd No. 5 Hyd No. 2 Hyd No. 3 mom= Hyd No. 4 Hydraflow Table of Contents CrozetSRTSprepostRA11 ONALfeb2015.gpw Hydraflow Hydrographs by Intelisolve v9.2 Tuesday, Feb 24, 2015 Watershed Model Schematic 1 2 - Year Summary Report 2 Hydrograph Reports 3 Hydrograph No. 1, Rational, Pre-Developed Total to Culvert 3 TR-55 Tc Worksheet 4 Hydrograph No. 2, Rational, Post Dev. DA5 5 TR-55 Tc Worksheet 6 Hydrograph No. 3, Rational, Post Dev DA4 7 TR-55 Tc Worksheet 8 Hydrograph No. 4, Rational, POST Dev DA6 9 TR-55 Tc Worksheet 10 Hydrograph No. 5, Combine, POST Total To Storm Sewer 11 10 - Year Summary Report 12 Hydrograph Reports 13 Hydrograph No. 1, Rational, Pre-Developed Total to Culvert 13 Hydrograph No. 2, Rational, Post Dev. DA5 14 Hydrograph No. 3, Rational, Post Dev DA4 15 Hydrograph No. 4, Rational, POST Dev DA6 16 Hydrograph No. 5, Combine, POST Total To Storm Sewer 17