As the Existing Topography is somewhat rolling or undulating, a pure landforming solution is not the best option. On the flip side, a pure ditching solution is not the best option either because ditches are always cutting and end up deeper than they need to be if some filling in depressions can be achieved.
So an OptiSurface 4Way was used to design the field. This surface type lets water meander across the field and exit to the boundaries. In addition, a Ditch Network Design was calculated to create guidelines where water will be passing through.
The image below shows the combines ditch network and landform design.
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