Strength of cornish bank

May 24, 2004 7 Replies

My driveway & garage is raised: at the front there's a retaining stone wall, facing a sunken road and at the side there's a cornish bank (unmortared stone & soil) facing a private lane (about 10-12 feet lower than the drive).



Around the driveway there's bit of space filled with odds and sods - shrubs, the gas-tank on a concrete plinth, and a small (oddly-placed & leaking) pond.



Now, I have a plan to move things about a bit - pave part of the lawn to allow a bit more parking space, move the gas-tank a bit, convert that space to parking, etc.



However, I am very aware that I have no idea how much weight the cornish bank can take, how much space I should leave around the parking bit to be sure it's not at risk, whether taking some height off the top would make things more stable (and thus allow an increase in the parking space) and so on.



I'm not even sure who to ask about this. A builder ? A surveyor? a landscaper? Someone else?



I'd like to take professional advice. The private lane is the only access to the outside world for several houses, so I want to be quite sure I'm not going to risk trapping all of the residents.



Victoria


Start by having a read through this site:

formatting link
hints, tips and advice are all from the experts so they know how way and what way these things need to be like. Lots of great help.

"BigWallop" wrote in news:uUlsc.1181$ snipped-for-privacy@news-text.cableinet.net:

Thanks, but already read pavingexpert - I suspect from his past usenet posts that Tony would consider the whole thing even as it is now a rather unprofessional construction (walls of mud & stones held together with roots!), but that seems to be how things are done round here.

I really want someone who's done this kind of thing before to come and look at the bank and give an opinion (which I'm prepared to pay for).

I'm hoping someone here will be able to suggest which is the appropriate section of the Yellow Pages.

Victoria

There are a good few links on the paving expert web site to people around the country who trade in these sorts of things. So it might be a good idea to have a look at some of them.

I sympathise. At the end of my garden is a 6ft drystone retaining wall that is at leat 100 years old. It's very bulgy and full of roots from nearby trees.

Your problem is that nobody with any sense will tell you it's OK to park a car near the top of a structure like this. A structural engineer will be able to design a wall that will be strong enough BUT it will probably have to have a base as wide as one third of it's height.

Building such a wall is obviously a non trivial job. If the existing wall is in good condition I'd be inclined to go ahead with your plans anyway BUT keep a very careful eye on the wall. If there are any signs of movement you'll have to take evasive action which could be expensive/time consuming.

HTH

Nick Brooks

Well moy lovrrr, stop talking about a "Cornish bank", you mean a Cornish hedge. Are you in North Cornwall, West, or what? Your best bet is to get in touch with a local who's been involved in road maintenance/general building for a good while.

J.B.

Jerry Built wrote in news: snipped-for-privacy@ziplip.com:

Tamar Valley

I don't know about the Cornish, but in Devon where I come from :-), I think people would understand that when I say 'bank' I mean specifically the bit of the construction made of earth underneath, rather than the entire edifice, hedge & all.

I do intend to retain the hedge part of things (mostly hazel) even though it is a bit of a pain to lay.

Yes - but what is a good way of finding someone who knows what they are doing?

I suppose I could knock someone else's wall down and then lie in wait till someone comes to fix it, but I feel there must be a better way ;-).

There is a similar construction elsewhere in the village, but I'm kind of reluctant to ask the owners.

I happened to be going past the other day when they realised it was built about 2 feet too narrow to get both their cars onto it and open the doors. ;-)

Victoria

Hmm, Callington? Maybe bit far for MJD in North Cornwall.

Devon people, furriners, build on earth!

A layed hedge! You must be in a sheltered spot.

You could always stop when you see some work going that you like the look of.

I'm not sure I understand the description in your OP, can you elaborate?

Maybe a specification problem, or they changed their plans... still, ooops!

J.B.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required