jarvis products corporation - middletown, ct
TRANSCRIPT
Drainage Study Building 2 Addition
GHQ Property Anderson Road
Middletown, Connecticut
Jarvis Products Corporation
Buck & Buck LLC
Engineers
1100 New Britain Ave., Suite 207
West Hartford, CT
Comm. No. 6403-59
March 13, 2020
Jarvis Products Corp.
Comm. No. 6403-59 2
SUMMARY:
The Jarvis Products Corporation Plant is located on the corner of Anderson and Laurel Grove
Roads. In 2012 a second 30,800 square foot building was added to the complex along with access drives
and additional parking. At that time the original detention basin was enlarged to maintain the peak
runoff levels, to the wetlands adjacent to Laurel Brook, that existed prior to the addition of the second
building. The pond was sized with the second building, a 20,000 square foot addition to Building 2,
drives and parking for the second building and future parking for both buildings all included as
impervious area in the runoff computations. The results of the drainage study done for the 2012 project
are as follows:
Pre 2012 2012
Storm Frequency Conditions Design Conditions W.S. Elev.
2 year 9.07 cfs 4.73 cfs 205.56
10 year 28.41 cfs 21.13 cfs 206.67
25 year 35.95 cfs 28.77 cfs 206.86
50 year 43.11 cfs 38.10 cfs 207.03
100 year 50.79 cfs 47.31 cfs 207.20
The proposed project is to build a 30,000 square foot addition on the south side of Building 2, a
connection between Buildings 1 and 2, pavement as required for trailer truck maneuvering and parking.
The impervious surfaces being proposed are less than the projected future impervious surface used to
size the existing pond back in 2012. The current study was performed in order to confirm that the
detention pond built in 2012 will reduce the peak runoff from the proposed project to levels less than
existed before the detention pond was enlarged. The peak runoff from the developed portion of the
property was computed for the 50 year storm as required by the City of Middletown Zoning
Regulations. The 2, 10, 25 and 100 year storms were also analyzed as part of this study. The watershed
area studied is the developed portion of the property that flows to the detention basin as well as the
developed portion that flows directly to the wetlands along Laurel Brook. The westerly limit of the
analysis is the wetlands line because no changes are proposed within the wetlands. The area was
modeled using Hydraflow Hydrographs v11for the proposed conditions and routed through the existing
detention basin, the discharge from the detention pond was added to the flow bypassing the pond which
yielded the following results:
Pre 2012 2020
Storm Frequency Conditions Design Conditions W.S. Elev.
2 year 9.07 cfs 4.75 cfs 205.52
10 year 28.41 cfs 21.74 cfs 206.67
25 year 35.95 cfs 29.73 cfs 206.87
50 year 43.11 cfs 39.61 cfs 207.03
100 year 50.79 cfs 48.66 cfs 207.21
Jarvis Products Corp.
Comm. No. 6403-59 3
The peak flows from the proposed site, routed through the existing d-pond, are still less than the
peak flows that existed before the pond was enlarged in 2012. A forebay was designed at the inlet to the
detention basin, to collect suspended solids, and hoods were installed on the outlet pipes of the lowest
catch basins prior to the detention pond to improve stormwater discharge quality.
The existing detention basin is of sufficient size to reduce the peak runoff from the proposed site for
all the storms studied. A high flow emergency spillway is also in place to direct flow to a rip-rapped
slope should a very heavy storm or problem with the standpipe outlet structure occur.
Jarvis Products Corp.
Comm. No. 6403-59 4
SOIL GROUPS:
JARVIS PRODUCTS CORP. PLANT
CIRCA 1970’S EARLY 80’S
APPROXIMATE
PROPERTY
LINE
All the proposed work is taking place within the areas marked with UD, Wt and LpB symbols.
Symbol Soil Name Soil Group
UD Udorthents-Urban land complex none
Wt Wilbraham extremely stony silt loam C
LpB Ludlow silt loam C
Curve numbers corresponding to soil group C were used in the hydraulic computations.
PRE 2012 CONDITIONS
USED IN SIZING D-POND
1 2
3
4
1
Watershed Model SchematicHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Project: Jarvis Pre 2012.gpw Monday, 03 / 9 / 2020
Hydrograph Summary Report2
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 SCS Runoff 10.22 6 732 43,895 ------ ------ ------ Area to D-Pond
2 SCS Runoff 6.652 6 738 36,666 ------ ------ ------ Area Bypassing
3 Reservoir 2.556 6 762 43,892 1 206.31 14,189 Area 1 thru D-Pond
4 Combine 9.066 6 744 80,558 2, 3 ------ ------ Bypass + Pond Outflow
Jarvis Pre 2012.gpw Return Period: 2 Year Monday, 03 / 9 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 10.22 cfsStorm frequency = 2 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 43,895 cuftDrainage area = 6.180 ac Curve number = 88*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.30 minTotal precip. = 3.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(2.690 x 74) + (3.490 x 98)] / 6.180
3
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
2.00 2.00
4.00 4.00
6.00 6.00
8.00 8.00
10.00 10.00
12.00 12.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 2 Year
Hyd No. 1
TR55 Tc Worksheet4
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hyd. No. 1
Area to D-Pond
Description A B C Totals
Sheet FlowManning's n-value = 0.240 0.011 0.011Flow length (ft) = 150.0 0.0 0.0Two-year 24-hr precip. (in) = 3.30 0.00 0.00Land slope (%) = 3.67 0.00 0.00
Travel Time (min) = 15.25 + 0.00 + 0.00 = 15.25
Shallow Concentrated FlowFlow length (ft) = 418.00 0.00 0.00Watercourse slope (%) = 4.30 0.00 0.00Surface description = Unpaved Paved PavedAverage velocity (ft/s) =3.35 0.00 0.00
Travel Time (min) = 2.08 + 0.00 + 0.00 = 2.08
Channel FlowX sectional flow area (sqft) = 0.00 0.00 0.00Wetted perimeter (ft) = 0.00 0.00 0.00Channel slope (%) = 0.00 0.00 0.00Manning's n-value = 0.015 0.015 0.015Velocity (ft/s) =0.00
0.000.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc .............................................................................. 17.30 min
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 2
Area Bypassing
Hydrograph type = SCS Runoff Peak discharge = 6.652 cfsStorm frequency = 2 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 36,666 cuftDrainage area = 9.150 ac Curve number = 74*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.40 minTotal precip. = 3.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(8.540 x 72) + (0.610 x 98)] / 9.150
5
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
6.00 6.00
7.00 7.00
Q (cfs)
Time (hrs)
Area BypassingHyd. No. 2 -- 2 Year
Hyd No. 2
TR55 Tc Worksheet6
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hyd. No. 2
Area Bypassing
Description A B C Totals
Sheet FlowManning's n-value = 0.240 0.011 0.011Flow length (ft) = 150.0 0.0 0.0Two-year 24-hr precip. (in) = 3.30 0.00 0.00Land slope (%) = 2.67 0.00 0.00
Travel Time (min) = 17.32 + 0.00 + 0.00 = 17.32
Shallow Concentrated FlowFlow length (ft) = 694.00 0.00 0.00Watercourse slope (%) = 5.40 0.00 0.00Surface description = Unpaved Paved PavedAverage velocity (ft/s) =3.75 0.00 0.00
Travel Time (min) = 3.09 + 0.00 + 0.00 = 3.09
Channel FlowX sectional flow area (sqft) = 0.00 0.00 0.00Wetted perimeter (ft) = 0.00 0.00 0.00Channel slope (%) = 0.00 0.00 0.00Manning's n-value = 0.015 0.015 0.015Velocity (ft/s) =0.00
0.000.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc .............................................................................. 20.40 min
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 2.556 cfsStorm frequency = 2 yrs Time to peak = 12.70 hrsTime interval = 6 min Hyd. volume = 43,892 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.31 ftReservoir name = Existing Pond Max. Storage = 14,189 cuft
Storage Indication method used.
7
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
2.00 2.00
4.00 4.00
6.00 6.00
8.00 8.00
10.00 10.00
12.00 12.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 2 Year
Hyd No. 3 Hyd No. 1 Total storage used = 14,189 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 4
Bypass + Pond Outflow
Hydrograph type = Combine Peak discharge = 9.066 cfsStorm frequency = 2 yrs Time to peak = 12.40 hrsTime interval = 6 min Hyd. volume = 80,558 cuftInflow hyds. = 2, 3 Contrib. drain. area = 9.150 ac
8
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
2.00 2.00
4.00 4.00
6.00 6.00
8.00 8.00
10.00 10.00
Q (cfs)
Time (hrs)
Bypass + Pond OutflowHyd. No. 4 -- 2 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report9
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 SCS Runoff 17.58 6 732 77,162 ------ ------ ------ Area to D-Pond
2 SCS Runoff 15.00 6 738 78,527 ------ ------ ------ Area Bypassing
3 Reservoir 13.40 6 738 77,160 1 206.89 18,999 Area 1 thru D-Pond
4 Combine 28.41 6 738 155,687 2, 3 ------ ------ Bypass + Pond Outflow
Jarvis Pre 2012.gpw Return Period: 10 Year Monday, 03 / 9 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 17.58 cfsStorm frequency = 10 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 77,162 cuftDrainage area = 6.180 ac Curve number = 88*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.30 minTotal precip. = 5.00 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(2.690 x 74) + (3.490 x 98)] / 6.180
10
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 10 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 2
Area Bypassing
Hydrograph type = SCS Runoff Peak discharge = 15.00 cfsStorm frequency = 10 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 78,527 cuftDrainage area = 9.150 ac Curve number = 74*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.40 minTotal precip. = 5.00 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(8.540 x 72) + (0.610 x 98)] / 9.150
11
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
Q (cfs)
Time (hrs)
Area BypassingHyd. No. 2 -- 10 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 13.40 cfsStorm frequency = 10 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 77,160 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.89 ftReservoir name = Existing Pond Max. Storage = 18,999 cuft
Storage Indication method used.
12
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 10 Year
Hyd No. 3 Hyd No. 1 Total storage used = 18,999 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 4
Bypass + Pond Outflow
Hydrograph type = Combine Peak discharge = 28.41 cfsStorm frequency = 10 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 155,687 cuftInflow hyds. = 2, 3 Contrib. drain. area = 9.150 ac
13
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
Q (cfs)
Time (hrs)
Bypass + Pond OutflowHyd. No. 4 -- 10 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report14
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 SCS Runoff 20.17 6 732 89,205 ------ ------ ------ Area to D-Pond
2 SCS Runoff 18.19 6 738 94,712 ------ ------ ------ Area Bypassing
3 Reservoir 17.76 6 738 89,203 1 206.99 19,928 Area 1 thru D-Pond
4 Combine 35.95 6 738 183,914 2, 3 ------ ------ Bypass + Pond Outflow
Jarvis Pre 2012.gpw Return Period: 25 Year Monday, 03 / 9 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 20.17 cfsStorm frequency = 25 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 89,205 cuftDrainage area = 6.180 ac Curve number = 88*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.30 minTotal precip. = 5.60 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(2.690 x 74) + (3.490 x 98)] / 6.180
15
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 25 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 2
Area Bypassing
Hydrograph type = SCS Runoff Peak discharge = 18.19 cfsStorm frequency = 25 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 94,712 cuftDrainage area = 9.150 ac Curve number = 74*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.40 minTotal precip. = 5.60 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(8.540 x 72) + (0.610 x 98)] / 9.150
16
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area BypassingHyd. No. 2 -- 25 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 17.76 cfsStorm frequency = 25 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 89,203 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.99 ftReservoir name = Existing Pond Max. Storage = 19,928 cuft
Storage Indication method used.
17
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 25 Year
Hyd No. 3 Hyd No. 1 Total storage used = 19,928 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 4
Bypass + Pond Outflow
Hydrograph type = Combine Peak discharge = 35.95 cfsStorm frequency = 25 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 183,914 cuftInflow hyds. = 2, 3 Contrib. drain. area = 9.150 ac
18
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Bypass + Pond OutflowHyd. No. 4 -- 25 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report19
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 SCS Runoff 23.19 6 732 103,374 ------ ------ ------ Area to D-Pond
2 SCS Runoff 21.99 6 738 114,216 ------ ------ ------ Area Bypassing
3 Reservoir 21.12 6 738 103,371 1 207.09 20,611 Area 1 thru D-Pond
4 Combine 43.11 6 738 217,587 2, 3 ------ ------ Bypass + Pond Outflow
Jarvis Pre 2012.gpw Return Period: 50 Year Monday, 03 / 9 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 23.19 cfsStorm frequency = 50 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 103,374 cuftDrainage area = 6.180 ac Curve number = 88*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.30 minTotal precip. = 6.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(2.690 x 74) + (3.490 x 98)] / 6.180
20
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 50 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 2
Area Bypassing
Hydrograph type = SCS Runoff Peak discharge = 21.99 cfsStorm frequency = 50 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 114,216 cuftDrainage area = 9.150 ac Curve number = 74*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.40 minTotal precip. = 6.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(8.540 x 72) + (0.610 x 98)] / 9.150
21
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
Q (cfs)
Time (hrs)
Area BypassingHyd. No. 2 -- 50 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 21.12 cfsStorm frequency = 50 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 103,371 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 207.09 ftReservoir name = Existing Pond Max. Storage = 20,611 cuft
Storage Indication method used.
22
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 50 Year
Hyd No. 3 Hyd No. 1 Total storage used = 20,611 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 4
Bypass + Pond Outflow
Hydrograph type = Combine Peak discharge = 43.11 cfsStorm frequency = 50 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 217,587 cuftInflow hyds. = 2, 3 Contrib. drain. area = 9.150 ac
23
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
Q (cfs)
Time (hrs)
Bypass + Pond OutflowHyd. No. 4 -- 50 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report24
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 SCS Runoff 26.63 6 732 119,682 ------ ------ ------ Area to D-Pond
2 SCS Runoff 26.42 6 738 137,155 ------ ------ ------ Area Bypassing
3 Reservoir 24.61 6 732 119,679 1 207.18 21,397 Area 1 thru D-Pond
4 Combine 50.79 6 738 256,834 2, 3 ------ ------ Bypass + Pond Outflow
Jarvis Pre 2012.gpw Return Period: 100 Year Monday, 03 / 9 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 26.63 cfsStorm frequency = 100 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 119,682 cuftDrainage area = 6.180 ac Curve number = 88*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.30 minTotal precip. = 7.10 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(2.690 x 74) + (3.490 x 98)] / 6.180
25
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
28.00 28.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 100 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 2
Area Bypassing
Hydrograph type = SCS Runoff Peak discharge = 26.42 cfsStorm frequency = 100 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 137,155 cuftDrainage area = 9.150 ac Curve number = 74*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.40 minTotal precip. = 7.10 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(8.540 x 72) + (0.610 x 98)] / 9.150
26
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
28.00 28.00
Q (cfs)
Time (hrs)
Area BypassingHyd. No. 2 -- 100 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 24.61 cfsStorm frequency = 100 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 119,679 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 207.18 ftReservoir name = Existing Pond Max. Storage = 21,397 cuft
Storage Indication method used.
27
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
28.00 28.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 100 Year
Hyd No. 3 Hyd No. 1 Total storage used = 21,397 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Monday, 03 / 9 / 2020
Hyd. No. 4
Bypass + Pond Outflow
Hydrograph type = Combine Peak discharge = 50.79 cfsStorm frequency = 100 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 256,834 cuftInflow hyds. = 2, 3 Contrib. drain. area = 9.150 ac
28
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
60.00 60.00
Q (cfs)
Time (hrs)
Bypass + Pond OutflowHyd. No. 4 -- 100 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
2012 CONDITIONS
USED IN SIZING D-POND
1 2
3
4
1
Watershed Model SchematicHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Project: Jarvis2012.gpw Wednesday, 03 / 11 / 2020
Hydrograph Summary Report2
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 SCS Runoff 18.29 6 738 94,971 ------ ------ ------ Area to D-Pond
2 SCS Runoff 2.041 6 732 8,759 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 4.380 6 780 94,962 1 205.57 40,228 Area 1 thru D-Pond
4 Combine 4.730 6 774 103,721 2, 3 ------ ------ Bypass + D-Pond Outflow
Jarvis2012.gpw Return Period: 2 Year Wednesday, 03 / 11 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 18.29 cfsStorm frequency = 2 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 94,971 cuftDrainage area = 13.610 ac Curve number = 86*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 3.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.640 x 98) + (6.970 x 74)] / 13.610
3
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 2 Year
Hyd No. 1
TR55 Tc Worksheet4
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hyd. No. 1
Area to D-Pond
Description A B C Totals
Sheet FlowManning's n-value = 0.240 0.011 0.011Flow length (ft) = 150.0 0.0 0.0Two-year 24-hr precip. (in) = 3.30 0.00 0.00Land slope (%) = 2.67 0.00 0.00
Travel Time (min) = 17.32 + 0.00 + 0.00 = 17.32
Shallow Concentrated FlowFlow length (ft) = 619.00 0.00 0.00Watercourse slope (%) = 5.65 0.00 0.00Surface description = Unpaved Paved PavedAverage velocity (ft/s) =3.84 0.00 0.00
Travel Time (min) = 2.69 + 0.00 + 0.00 = 2.69
Channel FlowX sectional flow area (sqft) = 0.00 0.00 0.00Wetted perimeter (ft) = 0.00 0.00 0.00Channel slope (%) = 0.00 0.00 0.00Manning's n-value = 0.015 0.015 0.015Velocity (ft/s) =0.00
0.000.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc .............................................................................. 20.00 min
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 2.041 cfsStorm frequency = 2 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 8,759 cuftDrainage area = 1.740 ac Curve number = 80*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.80 minTotal precip. = 3.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.460 x 98) + (1.280 x 74)] / 1.740
5
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 2 Year
Hyd No. 2
TR55 Tc Worksheet6
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hyd. No. 2
Area Bypassing D-Pond
Description A B C Totals
Sheet FlowManning's n-value = 0.240 0.011 0.011Flow length (ft) = 150.0 0.0 0.0Two-year 24-hr precip. (in) = 3.30 0.00 0.00Land slope (%) = 3.47 0.00 0.00
Travel Time (min) = 15.59 + 0.00 + 0.00 = 15.59
Shallow Concentrated FlowFlow length (ft) = 36.00 221.00 0.00Watercourse slope (%) = 1.00 1.00 0.00Surface description = Unpaved Paved PavedAverage velocity (ft/s) =1.61 2.03 0.00
Travel Time (min) = 0.37 + 1.81 + 0.00 = 2.18
Channel FlowX sectional flow area (sqft) = 0.00 0.00 0.00Wetted perimeter (ft) = 0.00 0.00 0.00Channel slope (%) = 0.00 0.00 0.00Manning's n-value = 0.015 0.015 0.015Velocity (ft/s) =0.00
0.000.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc .............................................................................. 17.80 min
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 4.380 cfsStorm frequency = 2 yrs Time to peak = 13.00 hrsTime interval = 6 min Hyd. volume = 94,962 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 205.57 ftReservoir name = Proposed Pond Max. Storage = 40,228 cuft
Storage Indication method used.
7
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 2 Year
Hyd No. 3 Hyd No. 1 Total storage used = 40,228 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 4.730 cfsStorm frequency = 2 yrs Time to peak = 12.90 hrsTime interval = 6 min Hyd. volume = 103,721 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.740 ac
8
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 2 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report9
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 SCS Runoff 32.64 6 738 171,285 ------ ------ ------ Area to D-Pond
2 SCS Runoff 4.009 6 732 17,130 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 19.84 6 756 171,275 1 206.67 59,502 Area 1 thru D-Pond
4 Combine 21.13 6 756 188,405 2, 3 ------ ------ Bypass + D-Pond Outflow
Jarvis2012.gpw Return Period: 10 Year Wednesday, 03 / 11 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 32.64 cfsStorm frequency = 10 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 171,285 cuftDrainage area = 13.610 ac Curve number = 86*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 5.00 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.640 x 98) + (6.970 x 74)] / 13.610
10
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
35.00 35.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 10 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 4.009 cfsStorm frequency = 10 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 17,130 cuftDrainage area = 1.740 ac Curve number = 80*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.80 minTotal precip. = 5.00 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.460 x 98) + (1.280 x 74)] / 1.740
11
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 10 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 19.84 cfsStorm frequency = 10 yrs Time to peak = 12.60 hrsTime interval = 6 min Hyd. volume = 171,275 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.67 ftReservoir name = Proposed Pond Max. Storage = 59,502 cuft
Storage Indication method used.
12
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
35.00 35.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 10 Year
Hyd No. 3 Hyd No. 1 Total storage used = 59,502 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 21.13 cfsStorm frequency = 10 yrs Time to peak = 12.60 hrsTime interval = 6 min Hyd. volume = 188,405 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.740 ac
13
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 10 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report14
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 SCS Runoff 37.75 6 738 199,122 ------ ------ ------ Area to D-Pond
2 SCS Runoff 4.729 6 732 20,265 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 26.98 6 756 199,112 1 206.86 62,825 Area 1 thru D-Pond
4 Combine 28.77 6 750 219,378 2, 3 ------ ------ Bypass + D-Pond Outflow
Jarvis2012.gpw Return Period: 25 Year Wednesday, 03 / 11 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 37.75 cfsStorm frequency = 25 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 199,122 cuftDrainage area = 13.610 ac Curve number = 86*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 5.60 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.640 x 98) + (6.970 x 74)] / 13.610
15
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 25 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 4.729 cfsStorm frequency = 25 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 20,265 cuftDrainage area = 1.740 ac Curve number = 80*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.80 minTotal precip. = 5.60 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.460 x 98) + (1.280 x 74)] / 1.740
16
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 25 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 26.98 cfsStorm frequency = 25 yrs Time to peak = 12.60 hrsTime interval = 6 min Hyd. volume = 199,112 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.86 ftReservoir name = Proposed Pond Max. Storage = 62,825 cuft
Storage Indication method used.
17
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 25 Year
Hyd No. 3 Hyd No. 1 Total storage used = 62,825 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 28.77 cfsStorm frequency = 25 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 219,378 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.740 ac
18
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 25 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report19
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 SCS Runoff 43.71 6 738 231,958 ------ ------ ------ Area to D-Pond
2 SCS Runoff 5.577 6 732 24,000 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 35.68 6 750 231,949 1 207.03 66,318 Area 1 thru D-Pond
4 Combine 38.10 6 750 255,948 2, 3 ------ ------ Bypass + D-Pond Outflow
Jarvis2012.gpw Return Period: 50 Year Wednesday, 03 / 11 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 43.71 cfsStorm frequency = 50 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 231,958 cuftDrainage area = 13.610 ac Curve number = 86*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 6.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.640 x 98) + (6.970 x 74)] / 13.610
20
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 50 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 5.577 cfsStorm frequency = 50 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 24,000 cuftDrainage area = 1.740 ac Curve number = 80*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.80 minTotal precip. = 6.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.460 x 98) + (1.280 x 74)] / 1.740
21
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
6.00 6.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 50 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 35.68 cfsStorm frequency = 50 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 231,949 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 207.03 ftReservoir name = Proposed Pond Max. Storage = 66,318 cuft
Storage Indication method used.
22
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 50 Year
Hyd No. 3 Hyd No. 1 Total storage used = 66,318 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 38.10 cfsStorm frequency = 50 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 255,948 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.740 ac
23
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 50 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report24
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 SCS Runoff 50.51 6 738 269,842 ------ ------ ------ Area to D-Pond
2 SCS Runoff 6.550 6 732 28,345 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 43.41 6 750 269,833 1 207.20 69,179 Area 1 thru D-Pond
4 Combine 47.31 6 744 298,177 2, 3 ------ ------ Bypass + D-Pond Outflow
Jarvis2012.gpw Return Period: 100 Year Wednesday, 03 / 11 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 50.51 cfsStorm frequency = 100 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 269,842 cuftDrainage area = 13.610 ac Curve number = 86*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 7.10 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.640 x 98) + (6.970 x 74)] / 13.610
25
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
60.00 60.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 100 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 6.550 cfsStorm frequency = 100 yrs Time to peak = 12.20 hrsTime interval = 6 min Hyd. volume = 28,345 cuftDrainage area = 1.740 ac Curve number = 80*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 17.80 minTotal precip. = 7.10 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.460 x 98) + (1.280 x 74)] / 1.740
26
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
6.00 6.00
7.00 7.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 100 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 43.41 cfsStorm frequency = 100 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 269,833 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 207.20 ftReservoir name = Proposed Pond Max. Storage = 69,179 cuft
Storage Indication method used.
27
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
60.00 60.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 100 Year
Hyd No. 3 Hyd No. 1 Total storage used = 69,179 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Wednesday, 03 / 11 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 47.31 cfsStorm frequency = 100 yrs Time to peak = 12.40 hrsTime interval = 6 min Hyd. volume = 298,177 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.740 ac
28
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 100 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
PROPOSED CONDITIONS
ROUTED THROUGH EXISTING D-POND
1 2
3
4
1
Watershed Model SchematicHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Project: C:\Jarvis\Jarvis 2020.gpw Sunday, 03 / 8 / 2020
Hydrograph Summary Report2
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 SCS Runoff 18.02 6 738 93,542 ------ ------ ------ Area to D-Pond
2 SCS Runoff 1.437 6 738 7,763 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 4.218 6 780 93,533 1 205.52 39,510 Area 1 thru D-Pond
4 Combine 4.750 6 750 101,296 2, 3 ------ ------ Bypass + D-Pond Outflow
C:\Jarvis\Jarvis 2020.gpw Return Period: 2 Year Sunday, 03 / 8 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 18.02 cfsStorm frequency = 2 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 93,542 cuftDrainage area = 13.980 ac Curve number = 85*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 3.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.580 x 98) + (7.400 x 74)] / 13.980
3
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 2 Year
Hyd No. 1
TR55 Tc Worksheet4
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hyd. No. 1
Area to D-Pond
Description A B C Totals
Sheet FlowManning's n-value = 0.240 0.011 0.011Flow length (ft) = 150.0 0.0 0.0Two-year 24-hr precip. (in) = 3.30 0.00 0.00Land slope (%) = 2.67 0.00 0.00
Travel Time (min) = 17.32 + 0.00 + 0.00 = 17.32
Shallow Concentrated FlowFlow length (ft) = 619.00 0.00 0.00Watercourse slope (%) = 5.65 0.00 0.00Surface description = Unpaved Paved PavedAverage velocity (ft/s) =3.84 0.00 0.00
Travel Time (min) = 2.69 + 0.00 + 0.00 = 2.69
Channel FlowX sectional flow area (sqft) = 0.00 0.00 0.00Wetted perimeter (ft) = 0.00 0.00 0.00Channel slope (%) = 0.00 0.00 0.00Manning's n-value = 0.015 0.015 0.015Velocity (ft/s) =0.00
0.000.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc .............................................................................. 20.00 min
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 1.437 cfsStorm frequency = 2 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 7,763 cuftDrainage area = 1.750 ac Curve number = 76*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 26.70 minTotal precip. = 3.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.130 x 98) + (1.620 x 74)] / 1.750
5
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 2 Year
Hyd No. 2
TR55 Tc Worksheet6
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hyd. No. 2
Area Bypassing D-Pond
Description A B C Totals
Sheet FlowManning's n-value = 0.240 0.011 0.011Flow length (ft) = 150.0 0.0 0.0Two-year 24-hr precip. (in) = 3.30 0.00 0.00Land slope (%) = 1.00 0.00 0.00
Travel Time (min) = 25.65 + 0.00 + 0.00 = 25.65
Shallow Concentrated FlowFlow length (ft) = 103.00 0.00 0.00Watercourse slope (%) = 1.00 1.00 0.00Surface description = Unpaved Paved PavedAverage velocity (ft/s) =1.61 2.03 0.00
Travel Time (min) = 1.06 + 0.00 + 0.00 = 1.06
Channel FlowX sectional flow area (sqft) = 0.00 0.00 0.00Wetted perimeter (ft) = 0.00 0.00 0.00Channel slope (%) = 0.00 0.00 0.00Manning's n-value = 0.015 0.015 0.015Velocity (ft/s) =0.00
0.000.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc .............................................................................. 26.70 min
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 4.218 cfsStorm frequency = 2 yrs Time to peak = 13.00 hrsTime interval = 6 min Hyd. volume = 93,533 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 205.52 ftReservoir name = Existing Pond Max. Storage = 39,510 cuft
Storage Indication method used.
7
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Q (cfs)
0.00 0.00
3.00 3.00
6.00 6.00
9.00 9.00
12.00 12.00
15.00 15.00
18.00 18.00
21.00 21.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 2 Year
Hyd No. 3 Hyd No. 1 Total storage used = 39,510 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 4.750 cfsStorm frequency = 2 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 101,296 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.750 ac
8
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 2 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report9
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 SCS Runoff 32.68 6 738 170,920 ------ ------ ------ Area to D-Pond
2 SCS Runoff 3.092 6 738 16,107 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 19.63 6 756 170,910 1 206.67 59,393 Area 1 thru D-Pond
4 Combine 21.74 6 756 187,017 2, 3 ------ ------ Bypass + D-Pond Outflow
C:\Jarvis\Jarvis 2020.gpw Return Period: 10 Year Sunday, 03 / 8 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 32.68 cfsStorm frequency = 10 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 170,920 cuftDrainage area = 13.980 ac Curve number = 85*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 5.00 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.580 x 98) + (7.400 x 74)] / 13.980
10
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
35.00 35.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 10 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 3.092 cfsStorm frequency = 10 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 16,107 cuftDrainage area = 1.750 ac Curve number = 76*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 26.70 minTotal precip. = 5.00 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.130 x 98) + (1.620 x 74)] / 1.750
11
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 10 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 19.63 cfsStorm frequency = 10 yrs Time to peak = 12.60 hrsTime interval = 6 min Hyd. volume = 170,910 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.67 ftReservoir name = Existing Pond Max. Storage = 59,393 cuft
Storage Indication method used.
12
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
35.00 35.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 10 Year
Hyd No. 3 Hyd No. 1 Total storage used = 59,393 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 21.74 cfsStorm frequency = 10 yrs Time to peak = 12.60 hrsTime interval = 6 min Hyd. volume = 187,017 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.750 ac
13
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
Q (cfs)
0.00 0.00
4.00 4.00
8.00 8.00
12.00 12.00
16.00 16.00
20.00 20.00
24.00 24.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 10 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report14
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 SCS Runoff 37.92 6 738 199,259 ------ ------ ------ Area to D-Pond
2 SCS Runoff 3.715 6 738 19,297 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 27.09 6 756 199,250 1 206.87 62,872 Area 1 thru D-Pond
4 Combine 29.73 6 750 218,547 2, 3 ------ ------ Bypass + D-Pond Outflow
C:\Jarvis\Jarvis 2020.gpw Return Period: 25 Year Sunday, 03 / 8 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 37.92 cfsStorm frequency = 25 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 199,259 cuftDrainage area = 13.980 ac Curve number = 85*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 5.60 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.580 x 98) + (7.400 x 74)] / 13.980
15
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 25 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 3.715 cfsStorm frequency = 25 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 19,297 cuftDrainage area = 1.750 ac Curve number = 76*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 26.70 minTotal precip. = 5.60 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.130 x 98) + (1.620 x 74)] / 1.750
16
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 25 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 27.09 cfsStorm frequency = 25 yrs Time to peak = 12.60 hrsTime interval = 6 min Hyd. volume = 199,250 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 206.87 ftReservoir name = Existing Pond Max. Storage = 62,872 cuft
Storage Indication method used.
17
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 25 Year
Hyd No. 3 Hyd No. 1 Total storage used = 62,872 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 29.73 cfsStorm frequency = 25 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 218,547 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.750 ac
18
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
5.00 5.00
10.00 10.00
15.00 15.00
20.00 20.00
25.00 25.00
30.00 30.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 25 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report19
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 SCS Runoff 44.05 6 738 232,736 ------ ------ ------ Area to D-Pond
2 SCS Runoff 4.455 6 738 23,125 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 35.93 6 750 232,727 1 207.03 66,414 Area 1 thru D-Pond
4 Combine 39.61 6 750 255,852 2, 3 ------ ------ Bypass + D-Pond Outflow
C:\Jarvis\Jarvis 2020.gpw Return Period: 50 Year Sunday, 03 / 8 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 44.05 cfsStorm frequency = 50 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 232,736 cuftDrainage area = 13.980 ac Curve number = 85*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 6.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.580 x 98) + (7.400 x 74)] / 13.980
20
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 50 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 4.455 cfsStorm frequency = 50 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 23,125 cuftDrainage area = 1.750 ac Curve number = 76*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 26.70 minTotal precip. = 6.30 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.130 x 98) + (1.620 x 74)] / 1.750
21
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 50 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 35.93 cfsStorm frequency = 50 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 232,727 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 207.03 ftReservoir name = Existing Pond Max. Storage = 66,414 cuft
Storage Indication method used.
22
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 50 Year
Hyd No. 3 Hyd No. 1 Total storage used = 66,414 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 39.61 cfsStorm frequency = 50 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 255,852 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.750 ac
23
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
Q (cfs)
Time (hrs)
Bypass + D-Pond OutflowHyd. No. 4 -- 50 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3
Hydrograph Summary Report24
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 SCS Runoff 51.04 6 738 271,408 ------ ------ ------ Area to D-Pond
2 SCS Runoff 5.313 6 738 27,611 ------ ------ ------ Area Bypassing D-Pond
3 Reservoir 43.90 6 750 271,399 1 207.21 69,358 Area 1 thru D-Pond
4 Combine 48.66 6 744 299,010 2, 3 ------ ------ Bypass + D-Pond Outflow
C:\Jarvis\Jarvis 2020.gpw Return Period: 100 Year Sunday, 03 / 8 / 2020
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 1
Area to D-Pond
Hydrograph type = SCS Runoff Peak discharge = 51.04 cfsStorm frequency = 100 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 271,408 cuftDrainage area = 13.980 ac Curve number = 85*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 20.00 minTotal precip. = 7.10 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(6.580 x 98) + (7.400 x 74)] / 13.980
25
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
60.00 60.00
Q (cfs)
Time (hrs)
Area to D-PondHyd. No. 1 -- 100 Year
Hyd No. 1
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 2
Area Bypassing D-Pond
Hydrograph type = SCS Runoff Peak discharge = 5.313 cfsStorm frequency = 100 yrs Time to peak = 12.30 hrsTime interval = 6 min Hyd. volume = 27,611 cuftDrainage area = 1.750 ac Curve number = 76*Basin Slope = 0.0 % Hydraulic length = 0 ftTc method = TR55 Time of conc. (Tc) = 26.70 minTotal precip. = 7.10 in Distribution = Type IIIStorm duration = 24 hrs Shape factor = 484
* Composite (Area/CN) = [(0.130 x 98) + (1.620 x 74)] / 1.750
26
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
5.00 5.00
6.00 6.00
Q (cfs)
Time (hrs)
Area Bypassing D-PondHyd. No. 2 -- 100 Year
Hyd No. 2
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 3
Area 1 thru D-Pond
Hydrograph type = Reservoir Peak discharge = 43.90 cfsStorm frequency = 100 yrs Time to peak = 12.50 hrsTime interval = 6 min Hyd. volume = 271,399 cuftInflow hyd. No. = 1 - Area to D-Pond Max. Elevation = 207.21 ftReservoir name = Existing Pond Max. Storage = 69,358 cuft
Storage Indication method used.
27
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Q (cfs)
0.00 0.00
10.00 10.00
20.00 20.00
30.00 30.00
40.00 40.00
50.00 50.00
60.00 60.00
Q (cfs)
Time (hrs)
Area 1 thru D-PondHyd. No. 3 -- 100 Year
Hyd No. 3 Hyd No. 1 Total storage used = 69,358 cuft
Hydrograph ReportHydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Sunday, 03 / 8 / 2020
Hyd. No. 4
Bypass + D-Pond Outflow
Hydrograph type = Combine Peak discharge = 48.66 cfsStorm frequency = 100 yrs Time to peak = 12.40 hrsTime interval = 6 min Hyd. volume = 299,010 cuftInflow hyds. = 2, 3 Contrib. drain. area = 1.750 ac
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Bypass + D-Pond OutflowHyd. No. 4 -- 100 Year
Hyd No. 4 Hyd No. 2 Hyd No. 3