Singhing About It

Solves Drainage Problems For Less Than $150/ha

Client: GR&S Singh

Location: North Queensland, Australia

Notes: 52 hectare half Centre Pivot growing sugar cane on 1.5m furrows. Client wants better drainage to allow more timely machine operations/access and less compaction particularly during harvesting.

See this field in Google Maps

Design Constraints

Surface Type:	OptiSurface1D
	Main Slope Direction(deg):	155.7	(Bearing From North)
	Calculation Grid Spacing(m):	5
	Fill To Import to Field(m3):	0
	Cut To Export from Field(m3):	0
	Cut/Fill Ratio:	1.2

Zone	Main Slope			Cross Slope			Maximum Allowable Cut(m)	Fixed Elevation (m)
	Minimum	Maximum	Smoothing	Minimum	Maximum	Smoothing
	(%)	(%)	(%)	(%)	(%)	(%)
Boundary	0.1	-	-	-	-	-	-	-

Design Results

Field Area:

52.13

Volume of Cut:	4447	m3	+	Import:	0	m3
Volume of Fill:	3821	m3	+	Export:	0	m3
Earthmoving Cut/ha:	85.3	m3/ha

Existing Topography Map

Proposed Topography (3D - 50x Vertical Exageration)

Proposed Topography

Cut Fill Map

Conclusions

The Cut/Fill map shows that although 80% of the field drains naturally, there are areas where significant ponding can occur. The aerial photographs (see this field in Google Maps) shows these areas are generally around a meandering natural drainage line. With minimal earthworks OptiSurface landforming corrected this problems and promoted the signficant benefits that come with optimal surface drainage.

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