---- 3.4.7 Rice Levee Design
Last Updated: 18 January 2024 For: OptiSurface Designer V3.5+
This feature is under development. Use at your own risk.
Overview:
Calculates a levee design for rice fields with a given vertical spacing.
Displayed
by: Tools > Rice Levee Design...
Appearance:
- Boundary - select the boundary where the ditch network design will be calculated within.
- Topography - select the topography which will be the input to the calculation.
- Calculation Grid Spacing (m or ft) - define how far apart the calculation grid points are.
- Highest Elevation (m or ft) - define the elevation where the highest levee will be placed. Select 'Pick' to click the location on the Map.
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Vertical Interval (m or ft) - define the vertical spacing of the levees.
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Lowest Elevation (m or ft) - define the elevation where the lowest levee will be placed. Select 'Pick' to click the location on the Map.
- OptiLevee Technology - tick ON to optimize levee placement by maximizing spacing uniformity
- Vertical Tolerance (m or ft): define the amount of elevation difference of the contour bank and the selected boundary. - Delete Previously Created Breaklines - tick this ON to delete the breaklines created from the previous calculation.
Example:
This field will be designed for ponded rice. The field was smoothed with OptiSurface 4Way as shown below.
Existing Topography
![Image: https://optisurface.uservoice.com/assets/242285078/ExistingTopography.jpg](https://optisurface.uservoice.com/assets/242285078/ExistingTopography.jpg)
![Image: https://optisurface.uservoice.com/assets/242285078/ExistingTopography.jpg](https://optisurface.uservoice.com/assets/242285078/ExistingTopography.jpg)
Proposed Topography
![Image: https://optisurface.uservoice.com/assets/242285081/ProposedTopography.jpg](https://optisurface.uservoice.com/assets/242285081/ProposedTopography.jpg)
The Rice Levees were calculated using the inputs above.
Proposed Levees
![Image: https://optisurface.uservoice.com/assets/242285102/ProposedLevees.jpg](https://optisurface.uservoice.com/assets/242285102/ProposedLevees.jpg)
The Rice Levees can be exported as shape files by going to File > Export Rice Levees...