This 115 hectare field has scattered pot holes around the field. It needs considerable smoothing to avoid the pot holes but still follow the lay of the land to minimize top soil movement.
Follow this dropbox link for the example survey file and unlocked osd file.
Existing Topography Map
Proposed Topography Map
Proposed Cut/Fill Map
Long Section (Along Direction of Row)
Cross Section (Across the Row)
An OptiSurface1D design has been calculated to drain water down the field to the southeast direction Following the natural topography of the field. Significant smoothing was applied in the main slope and cross slope directions and maximum grades were limited to 1%. This resulted in smooth design surface with earthworks of 145 m3/ha (76 yd3/acre).