View Full Version : collapsed wall

XStream Aquatics
01-13-2009, 04:38 PM
I just received a phone call from a new customer that had a 15' section of a 10' high retaining wall collapse. He says the wall is about 20-30 yrs. old and was existing when he bought the property. He is going to send me some pics this evening.
I install 98% water features and 2% land/hardscaping. I have built one kind of large wall before with clips and goetextile. Rather enjoyed it, cause we usually build retaining walls/areas with 1-2 ton boulders, instead of using the exact sized block.
Anyways, my questions are, is a section of wall able to be replaced or do I have to tear out a certain amount? Also I mentioned the use of clips/pins, gravel and geo textile to the homeowner. I told him straight up "I" won't stack it back together without the use of clips, geotextile and gravel or it will fail again. For all I know is it might've had these components, won't know til Friday @ 9:00. Did these exist 20-30- yrs ago? He has a patio on top of the area that's being retained, along with alot of plumbing in ground. He says the plumbing is 10'-15' away from the wall thou (thank goodness).Some heads up would be nice.

01-13-2009, 08:57 PM
You should talk to an engineer for a wall that size. You will most likely need a building permit, also.
Any wall that size is a complicated build, and my guess is that you will need to start from scratch.
I would be interested to hear more when you get pictures, as most of the old walls that I've seen were not built to today's standards.
Good luck with it.

01-13-2009, 09:40 PM
Whats the total length of wall? Pics of course are best. I would GUESS that in order to fix the entire situation may require a complete redo. If its failing there is that the same problem awaiting elsewhere....

01-13-2009, 10:06 PM
Whats the total length of wall? Pics of course are best. I would GUESS that in order to fix the entire situation may require a complete redo. If its failing there is that the same problem awaiting elsewhere....

I agree, definitely would be nice to see some photos of it

XStream Aquatics
01-14-2009, 12:18 AM
well just checked email and no pics yet. I'll get pics myself Fri. morning if homeowner doesn't send them.

XStream Aquatics
01-14-2009, 12:23 AM
here is the first one I built.

XStream Aquatics
01-14-2009, 12:55 AM
what are the steps to getting an engineer there? Does he require a fee from the homeowner?

STL Ponds and Waterfalls
01-14-2009, 03:21 AM
Either the homeowner or from you. They generally start off at $300 and one my friend uses charges $.50 a sqft average. Talk to some hardscapers and builders to get an engineer out here. I would assume they are slow at the moment as we are unfortunately.

ALLPro Landscaping
01-14-2009, 03:31 AM
I was about to do a wall for some one last year, it was about 200 ft long and was a tiered wall, the first section was 6ft high and the other was about 31/2 high, I had my local nusery who i use he also is a designer, he came out and said he knows a enginer since I needed one, If I remember correctly it was about 5gs just for him to come out and tell me how to do it, I also needed the town involved and permits, again don't quote me on the price it was a while ago, but it was high, the job would have been well over 100gs due to location it would have been a nightmare. the homeowner then realized they couldn't afford it. good luck

01-14-2009, 10:02 AM
Some SRW manufacturers have either on staff engineers who will work with you (you will still need approval from a local eng.), or will provide you with the name of an engineer in your area.
Make sure that the one you choose has some familiarity with SRW's.

01-14-2009, 04:27 PM
I'm from Connecticut and any wall over 6 ft. requires a structural engineer design, stamp and a Town permit. Just look in the yellow pages for this type of engineer. The cost will vary because the engineer will need a topographical survey done by a surveyor for elevations. Not only does he design for loads from back material on the wall but possible drainage issues also.

XStream Aquatics
01-16-2009, 08:08 PM
I met with the homeowner today and come to find out it wasn't a srw it was cinder block and brick (about 35 yrs. old). Below it a couple pics. Total 71' L x 7'.5" H along with another wall that is about to collapse around other side of house another 61' L x 7'.5" H. Also 30' L x 3' H more on top area above patio. Nice size job. Homeowner also wants stamped concrete patios along entire back of house and side and upper patio. Anyone in KY area that would like to do the stamped concrete? I don't mess with it. One last thing, I would like to see some different ideas from veterans on putting steps (srw) thru a 7'.5" high wall (About 30" away from house). A straight down walk thru would cut to far back into the retained area. Have some ideas , I'll try and post pics of them.

XStream Aquatics
01-16-2009, 08:25 PM
here is one idea on steps.

01-16-2009, 10:25 PM
Ooooooh that's ugly! Definitely talk to an engineer before going any further.
You might want to consider running the steps parallel to the wall because of their length (7.5' tall divided by 6" rise per step = 15 steps @ 12" tread each = 15 feet length needed). Most likely, you will need to find a way to attach a railing to meet code.
Be very careful pricing this thing, make sure you know all that is going to be involved.

XStream Aquatics
01-16-2009, 11:01 PM
Already spoke with engineers(soil and structual). Before they come to sight I am working on bid to see if HO wants to proceed. And tomorrow ins. adjuster is suppose to show to see if he's covered. Notice the heating/air units in corner, (one was hit) all wiring for units and dish run right thru the wall so contractors for those will also need to be called. Just by going back on this forum about 4 months this project, quessing, is gonna be very very expensive. Keystone and Anchor sales reps met with me today and are getting mat. qoutes ready. Mesa rep is suppose to call me Monday. The only other supplier in my area is Belgard, not talked to them yet.

01-16-2009, 11:03 PM
Engineer will be needed. Also I would recomend whoever does the wall to also do the patio. They kinda go together, and the end result will be alot nicer if they are designed/built together.

XStream Aquatics
01-16-2009, 11:25 PM
another ???? Do they make a sinlge srw that could be laid and on top of that lay a double face ....(SEE FIRST PHOTO). Or is second photo more realistic? Right now they had a 3' brick wall to prevent someone walking off the edge.

01-21-2009, 08:45 PM
rockwood reataing wall block 6" classic for the wall and then you can put stone hedge right on top of the wall they will interlock right up. just make sure your engineer knows that your adding a seating wall on top the I would put a row of shrubs and separate the two like you drew if you put a seating wall right on top it can look alittle funnie b/c the wall part steps back and then the seating wall goes straight up. You can knock some tabs off of the rockwood classic 6" and have it sit flush so it would look like the seating wall but again I dont know if your engineer will let you do that. Looks like a fun project I love ones like that.

01-23-2009, 12:28 AM
XStream I sent you a PM

01-23-2009, 12:36 AM
Thats sure a mess