11th Drainage Poject

11^th area project

The area around the 10^th 11^th and 12^th tee area has severe drainage problems which are becoming worse as the season progresses, the source of this water is from precipitation and possible underground springs that are being hydraulically pressurised by the extremely wet summer of 2012 and the wet winter of 2012/13

On examination of the existing backfilled trenches it was found that the infill materials were of inferior quality which resulted in clay/silt ingress into the slotted pipe, also several old schemes were on top of each other implying continual failed attempts.

The quality of the backfill material is crucial to the success of the new scheme and I recommend a gravel of 2-5mm clean washed material which is none calcareous.

The diagram above is schematic only i.e. there will be eighteen laterals to the left of the open drain.

Key; Green open dyke, Red laterals