This drainage project was carried out on one of the very wet aprons of the course. The hole wad closed to golfers gor tge duration of the project.
Method:
A survey was done (by the head greenkeeper and myself) of the area with a dumpy level. This revealed a fall of >1m from the lowest point on the apron to the point where the water would be draining (<50m away).
We then used rope placed on the apron to help visualise where the pipes should be installed. This was a very worthwhile exercise as after placing out a perfect herring-bone design the head greenkeeper csme up with a design that was going to be less disruptive to the apron but achieve the same drainage coverage (see diagram).
We used 80mm perforated pipe spaced at 3m centres. Trenches were dug to a depth of 450mm in order to miss any irrigation pipes or wiring, but to also avoid the chance of damage by future tining or verti-draining.
A team of 4 carried out the trenching, piping, and backfilling with gravel. Thereafter a team of 5 added an intermediate layer of finer gravel, then a rootzone soil mixture and then reinstated the turf.
The work was completed over two days with dome tidying up needed on the third day.
All-in-all a successful installation with a small section still left to do.
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