Welcome to WinPond Workshop Welcome to WinPond Workshop Demo #1Demo #1
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Demonstration Problem #1Demonstration Problem #1 Mr. Chan L. Cat wants a pond built on his property in Mr. Chan L. Cat wants a pond built on his property in
Lamar County, TX for livestock water. Location is 0.7 Lamar County, TX for livestock water. Location is 0.7 miles SW of Chicota, TX. This will be a low hazard pond.miles SW of Chicota, TX. This will be a low hazard pond.
The Elevation-Surface Area data in acres:The Elevation-Surface Area data in acres:89.9 – 0.089.9 – 0.096.0 – 1.2196.0 – 1.2197.0 – 1.6097.0 – 1.6098.0 – 1.9098.0 – 1.9099.0 – 3.8099.0 – 3.80
100.0 – 3.90100.0 – 3.90 101.0 – 4.0101.0 – 4.0
102.0 – 4.1102.0 – 4.1
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Now execute WinPondNow execute WinPond Click > File > NewClick > File > New This will automatically pull up the default This will automatically pull up the default
template that you created previously.template that you created previously.
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Location-Lamar County, TX-0.7 miles SW of Chicota, TXPrincipal Spillway Design Storm-5 yr-24 hr=5.55 inchesFreeboard Design Storm=25 yr-24 hr=7.8 inchesAllowable Velocity=5.0 fps.
"NOT STAKED YARDAGE"
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Select “File -> Save” orSelect “File -> Save” or “ “File -> Save As”File -> Save As” or press F10or press F10 Save As-DEMO1.prjSave As-DEMO1.prj Save frequentlySave frequently
Saving your dataSaving your data
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Demonstration Problem #1Demonstration Problem #1 The drainage area data:The drainage area data:
Land Use: Pasture-47.9 AcresLand Use: Pasture-47.9 AcresHSG-B-28.9 Acres-FairHSG-B-28.9 Acres-FairHSG-C-19.0 Acres-GoodHSG-C-19.0 Acres-Good
Average Watershed Slope-2%Average Watershed Slope-2%Flow Length-1940 Ft.Flow Length-1940 Ft.
Auxiliary Spillway Design Storm-25 yr-24 hr-7.8 inches-Auxiliary Spillway Design Storm-25 yr-24 hr-7.8 inches-Type IIIType III
Allowable velocity in the Auxiliary Spillway-5.0 FPSAllowable velocity in the Auxiliary Spillway-5.0 FPS Auxiliary Spillway velocity without a pipe is 5.6 FPSAuxiliary Spillway velocity without a pipe is 5.6 FPS The Principal Spillway Design Storm will be 5.55 inches The Principal Spillway Design Storm will be 5.55 inches
for a 5 yr-24 hr storm.for a 5 yr-24 hr storm.
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Demonstration Problem #1Demonstration Problem #1LAMAR
COUNTY
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POND #1
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LAMAR COUNTY
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LAMAR COUNTY
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Demonstration Problem #1Demonstration Problem #1 Sediment storage required will be:Sediment storage required will be:
Above Inlet (aerated sediment)= 0.03 AFAbove Inlet (aerated sediment)= 0.03 AFBelow Inlet (submerged sediment) = 0.03 AFBelow Inlet (submerged sediment) = 0.03 AF
The Principal Spillway Crest will be set at Elevation 96.0.The Principal Spillway Crest will be set at Elevation 96.0. The landowner wants a pipe drop for his pond.The landowner wants a pipe drop for his pond.
Top width is 12.0 ft.Top width is 12.0 ft.Front and back slopes will be 4:1Front and back slopes will be 4:1No berms are neededNo berms are neededPool Bottom elevation is 89.9Pool Bottom elevation is 89.9Channel and Outlet elevation is 86.0Channel and Outlet elevation is 86.0Tailwater elevation is 87.5Tailwater elevation is 87.5Outlet extension is 6.0 ft.Outlet extension is 6.0 ft.C/L low point elevation is 87.1C/L low point elevation is 87.1Auxiliary Spillway Exit Slope is 7.4%Auxiliary Spillway Exit Slope is 7.4%Conduit Invert is 89.0Conduit Invert is 89.0
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Estimated sediment : 0.06 AF
1/2-Above the inlet (aerated)=0.03AF1/2-Below the inlet (submerged)=0.03AF.
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Reduces the amount of storage available when the floodrouting is done.Used to determine the
minimum height for the inlet elevation.
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LAMAR COUNTY
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Do you have adequate water yield for your purpose? For Lamar county the exhibit shows approx. 5 acres of drainage for each AF of storage. For this location we have 47.9 acres and should be able to supply 47.9/5.0=9.6 AF of storage. This location we need our water yield to supply approx. a max of 5.5 AF. So the pond has adequate water yield. Computer models such as RESOP or SPAW can be used for this determination if needed.
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LAMAR COUNTY
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We want to be sure we have adequate depth for long time water storage. Based on this location we should have a minimum water depth of 8 ft. over 25% of the area. We are providing 6.1 ft. (96.0-89.9) of natural depth and will pick up additional depth from the borrow area in front of the pond. For this pond the constructed front bottom depth was El. 86.0 for a depth of 10.0 ft. (96.0-86.0).
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• We will use three pipe trials, all HCMP-Helical Corrugated Metal Pipe
12”, 18”, & 24” barrel
Use 18”, 30”, & 40” for riser size.
•The inlet extension horizontal distance is 5.0 ft
•Use an entrance coefficient of 1.0
•A Manning's “n” value of .011, .013, & .015 will be used
•Pipe length is computed based on constructed fill and slopes.
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This is for new pipe. You should add 10-20% to design for aged pipe condition.
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List of pipe
sizes or direct
entree.
Accept default “n” or direct
entree.
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• We will use the calculated method.
•The auxiliary spillway width is 20 ft. with a C retardance.
•The level section is 25 Ft. with 4:1 side slope.
•The exit channel will be a C retardance.
•The permissible velocity is 5.0 FPS
•Length 1 is 65 ft-5%; Length 2 is 105 ft.-5%
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Discharge will be calculated as in DAMS2
Qe values will be read from
the file ASFILE (same format as in DAMS2)
A file containing stage-discharge data will be read.
An auxiliary spillway will
not be routed.
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Demonstration Problem #1Demonstration Problem #1Discharge will be calculated as in DAMS2
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The top of fill elevation can be changed, but only to a larger value.
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“Use New Pipe Length”
This will return you to T-7, Principal Routing screen to run through the calculations with the new pipe length.
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NOTE: Negative distance are upstream of centerline.
NOTE: To change H.I. or % ground
slope, double click on Elev. Or
Dist. Field.
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Demonstration Problem #1Demonstration Problem #1 Station----Upstream RR/Distance---CL---Downstream RR/Distance
0+00 8.5 / 6.0 8.5 8.5 / 6.0
0+25 9/0 / 8.0 9.0 9.0 / 8.0
0+75 10.7 / 10.0 10.7 10.7 / 10.0
0+95 12.5 / 21.2 12.5 12.5 / 21.2
1+15 14.2 / 27.6 14.4 14.0 / 27.2
1+35 15.1 / 31.6 15.3 15.0 / 31.2
2+05 18.8 / 46.4 21.6 22.3 / 60.4
2+56 16.7 / 38.0 17.2 17.7 / 42.0
3+13 8.7 / 8.0 8.7 8.7 / 8.0
3+50 6.0 / 6.0 6.0 6.0 / 6.0
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THE END
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Demonstration Problem #1Demonstration Problem #1 ““The U.S. Department of Agriculture (USDA) prohibits The U.S. Department of Agriculture (USDA) prohibits
discrimination in all its programs and activities on the basis of discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, and marital or family status. (Not all beliefs, sexual orientation, and marital or family status. (Not all prohibited bases apply to all programs.) Persons with prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should program information (Braille, large print, audiotape, etc.) should contact USDA's contact USDA's TARGET CenterTARGET Center at 202-720-2600 (voice and at 202-720-2600 (voice and TDD).TDD).
““To file a complaint of discrimination write USDA, Director, To file a complaint of discrimination write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 14th and Office of Civil Rights, Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC 20250-9410 or Independence Avenue, SW, Washington, DC 20250-9410 or call 202-720-5964 (voice or TDD). USDA is an equal call 202-720-5964 (voice or TDD). USDA is an equal opportunity provider and employer.”opportunity provider and employer.”