Joined: April 2008
||Posted: 11 May 2019,07:54
The sketch shows the proposed plan.
Missing features / labels:
- I have had a quote from local dry stone waller to face the large retaining wall that surrounds the driveway with Cotswold stone. The cost of this is too high at this stage as we cannot be certain that future alterations to the house wouldn’t disrupt this large wall. The proposed solution is to clad the wall with large vertical timbers (gravel board type).
- the existing linear drain will be kept in service; however the section that will become buried under the sub base to be covered with Terram textile to prevent build up of silt
- existing fall away from the house means that rainwater will run off slabs, through copious weep holes left in small curved retainer (mortar joints on bottom course will be left open) and run through free draining material used to fill the void created in this new raised section
- adequate fall/crossfall to be created on new gravelled driveway (centre of diagram) to allow water to run away from large retaining wall towards existing linear drain
- one challenge is dealing with the existing concrete base, leftover from an old ‘marley’ concrete double garage which we removed. In the future we may wish to add an oak framed garage, possibly with room above. So we want to keep the concrete base in case it will be needed again. Knowing that gravel on top of hard surface would create marbles effect, we plan to use a geo-cell gravel stabilising product that is permissible over concrete. The technical team at Core Landscaping Products have confirmed that this type of installation is acceptable. See HERE
- due to the height difference between concrete base/central drive section and the driveway next to house, I may need to extend the gravel stabilising product further than the concrete base in order to stabilise the shallow slope
- natural fall towards bottom left of driveway, I am considering what land drainage might be required? Currently there is none but we are experiencing some puddling in heavy rain plus I know that it is responsibility of homeowner to take care of water runoff and not dispense onto highway