Hi. Looking for some advice please.
Some of my boundary fence posts have rotted and need replacing. The issue is that there’s a difference in height of about 50-60cm between my ground and my neighbour’s ground. The original “retaining wall” from when the house was built (in 2004) consisted of a series of 10cm thick wooden posts. These are now also rotting and need to be replaced.
The existing fence posts are set in concrete on the low side. The plan is to replace the fence these with 3m concrete posts. The fence panels are 1.8m.
I would really appreciate thoughts on how substantial the retaining wall needs to be. For example simply using gravel boards, with the first board set into concrete at the base, should be stronger than the posts that were there originally. But is that sufficient?
For anyone recommending an impermeable wall, would I need to consider drainage for that height? The area is not fully enclosed; the ground level decreases towards the front of the property. But there is approximately 11m of wall.
There is also the wind load on the fence to consider. As you can see in the drawing the majority of the fence is well sheltered from the houses. Despite the nature of the existing construction It is only the posts becoming rotten after 15 years that have caused an issue.
Plan drawing and photos attached, high side is on the right. The fence between C and D has no retaining wall; the ground is sloping away here.
Many thanks
Some of my boundary fence posts have rotted and need replacing. The issue is that there’s a difference in height of about 50-60cm between my ground and my neighbour’s ground. The original “retaining wall” from when the house was built (in 2004) consisted of a series of 10cm thick wooden posts. These are now also rotting and need to be replaced.
The existing fence posts are set in concrete on the low side. The plan is to replace the fence these with 3m concrete posts. The fence panels are 1.8m.
I would really appreciate thoughts on how substantial the retaining wall needs to be. For example simply using gravel boards, with the first board set into concrete at the base, should be stronger than the posts that were there originally. But is that sufficient?
For anyone recommending an impermeable wall, would I need to consider drainage for that height? The area is not fully enclosed; the ground level decreases towards the front of the property. But there is approximately 11m of wall.
There is also the wind load on the fence to consider. As you can see in the drawing the majority of the fence is well sheltered from the houses. Despite the nature of the existing construction It is only the posts becoming rotten after 15 years that have caused an issue.
Plan drawing and photos attached, high side is on the right. The fence between C and D has no retaining wall; the ground is sloping away here.
Many thanks
Having seen one such option I guess I'm looking for agreement that GBs are adequate. Also taking on board noseall's comment about clay I'd also like to add drainage - is there any easy way to incorporate that with GBs?