Private Client, Dorset

The client required land drainage because he had large water logged areas around his farm, in areas needed for cultivation. MJ Abbott designed and installed a comprehensive land drainage system to help combat this problem.

The scope of works comprised:

• Marking out of carrier and lateral drains using GPS surveying equipment for maximum accuracy
• Excavation of drainage trenches using a Dynapac 1800 Chain Trencher complete with laser control, pipe chute and gravel hopper
• Installation of 600 linear metres of 300mm twinwall, 400 linear metres of 225mm twinwall and 1,500 linear metres of 150mm twinwall pipe as carrier drains
• Installation of 1,300 linear metres of 100mm perforated main drains
• Installation of 11,000 linear metres of 80mm perforated lateral drains
• Backfilling of all trenches with porous fill to within 100mm of the surface
• Final backfilling using selected as-dug materials
• Installation of outfall headwalls to boundary drainage ditches, which were cleaned out and re-graded as necessary.

The client was subsequently able to use all previously affected areas of his farm, to maximise on his crop yield.