Wick drains were installed on the cut face at 45˚ every two metres and these channel water into a sub-soil drain.
Wick drains were installed on the cut face at 45˚ every two metres and these channel water into a sub-soil drain. 
9/2016 – Green and functional hard landscaping
Wick drains were installed on the cut face at 45˚ every two metres and these channel water into a sub-soil drain.
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