HomeMy WebLinkAbout310557_Irrigation Design Update_20240314Sheetl
IRRIGATION SYSTEM DESIGN PARAMETERS
Landowner/Operator Name: Chadwick D. Phillips, CDP Farm-AWS310557 County: Duplin
Address: 140 S Country Club Drive
Pivot Add't. w/Digester
Kenansville, NC 28349
Farm Address Date: 9/19/2023
Telephone: 910-271-1779
2222 Bowdens Road 3/14/2024
Faison, NC 28341
Table 1 - Field Specifications
Approximate
Maximum
Maximum
Maximum Application
Useable Size
Application per Irrigation
Field of Field
Rate Cycle
Number (acres) Soil Tvne Slooe % Croo(s)
(In/hr) (inches) Comments
T1425
35.2
Goldsboro
0-2
Row Crops
0.5
1
Pivot 1 (Replaces pulls 6-9,12-19)
T1418
12.67
Goldsboro
0-2
Row Crops
0.5
1
Pulls 1-3
T1418
3.5
Rains
0-2
Row Crops
0.5
1
Pull 4
51.37
Note: Pull 5 removed due to digester location.
Sheet2
TABLE 2 - Travelling Irrigation Gun Settings
Make, Model and Type of Equipment: Center Pivot; Existing Pulls
Field No. Travel Application TRAVEL LANE Wetted Nozzle Operating Operating
and Speed Rate Effective Effective Diameter Diameter Pressure Pressure Arc
Hydrant No. (ft/min) (in/hr.) Width(ft.) Length(ft) (feet) (Inches) at Gun(psi) at reel(psi) Pattern Comments - Acres r)er pull
Pivot 1
Icenter Pivot acreage computer calculated; machine length-784' with end gun radius-100'
35.20
Existing Pulls from Original Design
1
2.62
0.33
194
1026
260
0.86
60
77
270
4.57
2
2.62
0.33
180
986
260
0.86
60
77
270
4.07
3
2.62
0.33
194
906
260
0.86
60
77
270
4.03
4
2.62
0.33
194
786
260
0.86
60
77
270
3.50
TOTAL
51.37
Sheet3
TABLE 3 - Solid Set Irrigation Gun Settings
Make, Model and Type of Equipment N/A
Operating Parameters
Field No Wetted Hydrant Spacing(ft) Application Nozzle Operating Operating
and Number of Diameter Along Between Rate Diameter Pressure Time
Line No. Hydrants (feet) Pipelines Pipelines in/hr (inches) at Gun(psi) at Hydrant(hr.) Comments -Acres per zone
0
TOTAL 0.00
Sheet4
TABLE 4 - Irrigation System Specifications
Pivot 1
Traveling
Solid Set
Pivot/Linear
Pivot/Linear
Pivot/Linear
Irrigation Gun
Irrigation
Irrigation
Irrigation
Irrigation
Flow Rate of Sprinkler pm
110
0
0
0
0
Operating Pressure at Pump (psi)
#DIV/01
#DIV/O!
#DIV/O!
#DIV/O!
#DIV/O!
Design Precipitation Rate (in/hr)
0.25
0.00
See Chart
See Chart
See Chart
Hose/Machine Length feet
XXXX)v xx
784.0
0.0
0.0
Type of Speed Compensation
Mechanical
xxxxx OCX
XXXXXXXX
xxxxx xx
XXxOOOCX
Pump Type (PTO, Engine, Electric)
Engine
Engine
Engine
Engine
Engine
Pump Power Requirement (hp)
#DIV/O!
#DIV/O!
#DIV/O!
#DIV/O!
#DIV/O!
TABLE 5 - Thrust Block Specifications
6"
4"
2"
THRUST BLOCK
THRUST BLOCK
THRUST BLOCK
LOCATION
AREA sq. ft.)
AREA (sq. ft.)
AREA sq. ft.
90 degree bend
8.8
4.3
1.1
Dead End
6.2
3.0
0.8
Tee
4.4
2.1
0.5
Gate Valve
6.2
3.0
0.8
45 degree bend
4.7
2.3
0.6
Page 1
Sheet5
IRRIGATION SYSTEM DESIGNER
Name: Micah Kevin Weston, CID
Company: Murphy -Brown, LLC dba Smithfield Hog Production
Address: 2822 Hwy 24 West, P.O. Box 856 Warsaw, NC 28398
Phone: (910)293-3434
Required Documentation
The following details of design and materials must accompany all irrigation designs:
1. A scale drawing of the proposed irrigation system which includes hydrant locations, pipelines, thrust block locations and buffer areas where applicable.
2. Assumptions and computations for determining total dynamic head and horsepower requirements.
3. Computations used to determine all mainline and lateral pipe sizes.
4. Sources and/or calculations used for determining application rates.
5. Computations used to determine the size of thrust blocks and illustrations of all thrust block configurations required in the system
6. Manufacturer's specifications for the irrigation pump, traveler and sprinkler(s).
7. Manufacturer's specifications for the irrigation pipe and/or USDA-NRCS standard for IRRIGATION WATER CONVEYANCE.
8. The information required by this form are the minimum requirements. It is the responsibility of the designer to consider all relevant factors at a particular site and
address them as appropriate.
9. Irrigation pipes should not be installed in lagoon or storage pond embankments without the approval of the designer.
NOTE: A buffer strip of 25' or wider must be maintained between the limits of the irrigation system and all
perennial streams and surface waters per NC Statutes.
Sheet6
Narrative of Irrigation System Operation
This design dated 9/19/2023 is for an addition of a center pivot to an existing facility. The acres were comput
calculated based on the equipment specified.
Maps drawn by Jim Blanchard Associates, P.C.
Pivot 1 replaces pulls 6-9 and 12-19.
Remaining pulls and application areas of the fields will be applied to with previous existing equipment.
Refer to owner's manual and irrigation dealer for information on maintenance, winterization, and operation of
system.
This design dated 3/14/2024 done to reflect the addition of a digester and the removal of pull 5. All other
parameters remained the same.
Sheet?
CALCULATIONS
Sprinkler Specifications
Sprinkler Type: Nelson
150
Nozzle Size:
0.86 inches
Sprinkler Pressure:
60 psi
Flowrate(GPM):
110 gpm
Wetted Diameter:
260 feet
Lane Snacinus
Desired Spacing (%):
70 %
Design Spacing(feet):
182 *PVC irrigation pipe normally comes in 20' pieces,
so round to the nearest multiple of 20.
Actual Spacing (feet):
180 feet
Actual Spacing (%):
69 %
Application Rate
Application Rate =(96.3xFlowrate)/(3.1415x(.9xradius)squared)
Design App. Rate =
0.25 in/hr
300 degree arc =
0.30 in/hr 330 degree arc = 0.27 in/hr
220 degree arc =
0.40 in/hr
180 degree arc =
0.49 in/hr
Traveller Speed -
Travel speed = 1.605 x Flowrate / Desired application amount x Lane Spacing
Desired app. (in.) = 0.5 inches 360 degree arc = 1.96 ft/min
300 degree arc = 2.35 ft/min 330 degree arc = 2.14 ft/min
220 degree arc = 3.14 ft/min
180 degree arc = 3.92 ft/min
Mainline Velocity
Velocity = .408 x Flowrate / pipe diameter squared feet/sec.**
**For buried pipelines, velocity should be below 5 feet per second
Pipe size: inches
Velocity= #DIV/0! ft/sec.
Page 1
Sheet7 (3)
CALCULATIONS
Pivot/Linear Specifications
Pivot 1
Pivot/Linear Type: Pivot
Machine Length:
784 (feet)
End Gun Radius
Base Pressure:
psi
Pipe Diameter:
Flowrate(GPM):
0 gpm
Machine Flow:
Wetted Length:
884 feet
End Gun Flow:
Application Rate
See Manufacturers Specifications Sheet
Travel Speed
See Manufacturers Specifications Sheet
Mainline Velocit
100 (feet)
(inches)
gpm
gpm
Velocity = .408 x Flowrate / pipe diameter squared feet/sec.**
**For buried pipelines, velocity should be below 5 feet per second
Pipe size: 6 inches
Velocity= 0.00 ft/sec.
Maximum Mainline Friction Loss
Most distant hydrant:
Total distance: feet
Friction Loss is figured using Hazen/William's Equation
Friction Loss= 0.00 feet/100 feet
Max. Mainline Loss = 0.0 feet or 0.0 psi
Maximum Machine Friction Loss
Friction Loss is figured using HazenMilliam's Equation
Friction Loss= #DIV/0! feet/100 feet
Max. Mainline Loss = #DIV/0! feet or #DIV/0! psi
Page 1
CDP Farm
AWS310557
Pivot Add t.
Digester Add t.
NOTE
Pivot replaces existing puts 6-9 do 12-19.
The remaining acres in the field dap with
exbzting pulls 10-11 will be aWIW to via
an aarwray (Ilsted as Aer-y 0).
o Total Field = 61.27 Ac.
y Wetted = 35.20 Ac.
Aerway 23 = 26.07 Ac.
Pivot
29.00 Ac. w/o End Gun
35.20 Ac. w/End Gun
Machine Runs 236 Degrees
End Gun Runs 185 Degrees
Machine Length = 784'
End Gun Radius = 100'
----------------------
4.90 Ac.
Ditch to be
filled in
Lagoon
Lagoon
i�
a 3 2 NOTE: Pull 5 was removed due to
4 the location of the digester. The
remaining pulls 1-4 are shown as
they were from previous determinations.
ci No recalculations were done.
Digester o Q Q
� M n ►�
raj O O �
aF
M N
400 0 200 400 Boa I
( IN FEET )
1 inch = 400 ft~