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demt 06-23-2010 06:23 PM

Retaining wall + fence + drainage ditch
3 Attachment(s)
I'm trying to enclose my yard with a fence to keep my young kids from wandering away, and I'm trying to figure out what to do with my back alley. It's pretty bad (see the 1st and 2nd photos). What I'd really like is a nice retaining wall with a fence on it (like in the 3rd photo).

I'm pretty sure that I don't have the concrete skills to do what you see in the 3rd photo. I've laid concrete a few times before (most ambitiously for a slab underneath a shed), but never a retaining wall and never anything with substantial forms. And being unemployed right now I don't have the money to hire a contractor to do it either.

Also, it seems like this would actually be quite difficult - more so than most concrete retaining walls, just because of the drainage ditch - I have no idea what kind of footers I would put under such a retaining wall or how far down they would have to go. Most sites advise generous drainage around a retaining wall, but how would you make sure that water drained from the wall's backfill out to the drainage ditch and not the other way around?

I could just put up a post-in-concrete fence up and be done with it, but what do you all think?

inspectorD 06-24-2010 06:25 AM

Great idea, however , it looks as though the drainage ditch is something the town owns for the road runnoff. If this was my project, I would consult with them first as to what my options are instead of spinning my wheels. If it affects the road, they could possibly tear it down, and we don't want you to waste the time and $$.

And there are cheaper fences you could put up, Just install a T-post fence with a 4' high fence.And grow some Climbing plants. It keeps the critters in and the honest folks out.

Daryl in Nanoose 07-03-2010 10:09 AM

Here's what I think Inspector :agree:

Wuzzat? 07-03-2010 03:25 PM

The formulas for retaining wall construction are like those for dam construction. Complex.
The idea is to prevent the wall from either sliding away or tipping over.

If there is a technical bookstore near you, using keywords from their Civil Engineering books you can probably find online citations showing the equations.
I can help you wade through them. As I recall you need to know the properties of the soil that you are dealing with.

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