Questions tagged [retaining-wall]

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2answers
48 views

Clean + Sand = Modified?

I have about a yard of sand and a yard of clean crushed stone left over from a project. For another project - a 12-18" high stone garden wall - I need about a yard of modified crushed stone. Can ...
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2answers
96 views

How do a fix this solid, leaning, solid concrete retaining wall

I have a solid concrete retaining wall that’s leaning against my neighbor’s property. In turn, he has let his yard foliage grow to hedge against it collapsing, which is why it’s hard to get clear ...
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2answers
74 views

How to Anchor to Top of CMU Cinder Block Wall?

I want to install a fence along the top of a retaining wall. The wall is made of standard 8x8x16 CMUs and is filled with 3500psi concrete and #4 rebar in every cell. The posts have 4"x4" ...
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2answers
120 views

How can I protect my foundation when removing old retaining walls and regrading?

I have this old and crumbling tiered stone wall in the back of my property. My deck sits on top the wall. There is a covered porch next to the deck, that’s built on top of block walls (not part of the ...
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2answers
161 views

What are my options for erosion control under this fence?

I am looking at options for mitigating erosion under this fence area. It is also an easement area shared with us and the higher neighboring property. I need: 1. A simple and cost effective solution to ...
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0answers
28 views

Quarry block sunken firepit

I want to put limestone blocks 2x2x5’ for seats in a 10x12, 4’ deep fireplace area, I rented a digger and dig a good amount and plan to put 6” of bass or minus then the blocks around the pit.. will it ...
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2answers
113 views

Temporary brace for a wooden retaining wall

I have a 2.5 ft tall retaining wall made with 2x6 planks held up by 4x4 wooden posts. Part of the retaining wall is now blowing out after the Texas winter power outage. I believe that my pool behind ...
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1answer
341 views

Should drainage pipe behind a retaining wall only have holes on the top?

I am mid-project in a DIY yard project. I have subbed out a large retaining wall to a civil / wall contractor. It's 220 feet long, between 2-5' in height, and makes 2 90-degree turns. It's built to ...
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0answers
365 views

Should the high side of a concrete block retaining wall be sealed?

I am mid-project in a DIY yard project. I have subbed out a large retaining wall to a civil / wall contractor. It’s 220 feet long, between 2-5′ in height, and makes 2 90-degree turns. It’s built to ...
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2answers
89 views

Dealing with incline from back door to fence

We have plans for a new house build - see my attached crude mockup where the front of the house is on the left and the backyard is the green shaded area. The land has up to 1.8m incline from front to ...
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4answers
1k views

How to prevent rebar from rusting in the ground?

I am building a wall with rebar, cinder blocks, and rebar, as I've seen in many YouTube videos. ________||_ ___________ ___________ _____ | || | | | | <--cinder ...
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1answer
55 views

Building a retaining wall with dense concrete blocks, best way to lay each course?

I've seen a few walls that use the top method versus the more common stretcher/running bond, are there any benefits to doing it the first way?
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3answers
223 views

What material to tie two cinder block walls together?

I am building a 24" high planter made from cinder block walls: Sketch below. Though it looks like a normal planter, water is pumped in from a pond, and instead of dirt, various layers of ...
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1answer
268 views

Are my hardwood sleepers shrinking?

I've built many retaining walls and garden beds with class 2 hardwood sleepers (2.4m x 200mm x 50mm). A few weeks after installing them in a vertical position with no gap between sleepers, a ...
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1answer
56 views

Is this species of stone wall-worthy

There are a lot of stones on my property of the kind shown in the picture. They are hard and heavy, but extremely brittle. The pictures shows half of a stone that I dropped from about 2' high on ...
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1answer
321 views

Can I run conduit through a retaining wall?

I have a terraced backyard with 3 retaining walls, each about 4' high. One is poured concrete, the other two are wood (PT 3x12). I am looking to add some outlets to the backyard from an existing ...
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2answers
78 views

How to properly allow for drainage for a backyard retaining wall?

I'm building a retaining wall for a circular fire pit area in my backyard, which has some slope to it. I've stacked the stones along the front part of the fire pit to make a kind of retaining wall, ...
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1answer
1k views

How do I fix a wooden retaining wall?

I need suggestions on how to fix my retaining wall. Is there a quick and cheap way to fix it? Unfortunately, I don't have the money right now to spend on replacing everything. You will notice that ...
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1answer
310 views

How can I raise grade near my fence without making soil contact?

My house is on slightly sloped land, and I am trying to fill soil to level the ground to make it more flat to lay lawn. There will be 30-40cm height of soil that would go against the fence, but I don’...
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1answer
31 views

Retaining Wall Restoration

A 30 year old concrete retaining wall is showing signs of age: What can be done to: halt the deformation of the blocks & wall? restore the wall to a state closer to 'new'?
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1answer
91 views

Should I build a segmental retaining wall on top of a grade beam with piles?

80 foot long retaining wall that ranges from 4 feet tall on one end to 12 feet tall on the other. I am planning on a segmental wall made of Versa-Lok "Bronco 18" blocks - 1200+ pounds each. ...
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3answers
513 views

Best way to fill gaps between lumber and masonry or rocks

We have built 4x4 retaining walls around existing rocks and concrete that we were unable to get rid of. The idea was - and is - use something fill the gaps between the lumber and the rocks / cements. ...
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0answers
32 views

How to choose fabric and gravel for retaining wall

I want to build a 15ft long retaining wall which is located at the bottom of a slope, surrounded with springs, against the fence. In searching for materials I have no idea which fabric I should choose ...
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2answers
76 views

Small retaining walls [closed]

I recently had contractor build several retaining walls ranging from 12" to 20" high. They dug a shallow one inch trench then filled it with mortar, upon which they laid and leveled first row of ...
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2answers
163 views

How can I level and secure retaining wall steps?

We have some retaining wall steps that are in dire need of repair. We would like to re-level some of them and re-adhere all of the cap stones so they no longer rock. Is it possible to create a ...
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2answers
109 views

Why don't segmental retaining walls need any piers or anchoring below grade?

I have built two soldier pile retaining walls (where you slot the boards between I-Beams you sink into the ground) with good success - but that success was due to: sinking the piles at least their ...
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1answer
73 views

What should I do about this bowing foundation wall?

I'm currently in the process of buying my first home, and I found a property on the market that was priced significantly less than most homes in the area. The seller's justification for this was a ...
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0answers
55 views

Slope has gobbled up the retaining walls

A few tiered retaining walls were built on a slope on my property about 70 years ago. By now they have been completely consumed by the slope as you can see on the picture below where, in the white ...
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0answers
149 views

Garden wall pointing / capping advice needed

I’m hoping to get some advice on a project I’m planning. I bought a house last year that has a 2 foot retaining wall between the decking and the lawn. It’s a red brick wall and looks to be in pretty ...
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0answers
30 views

Sealing/resurfacing exterior concrete retaining wall

I have a 3 ft concrete retaining wall that runs across our backyard. It collects a lot of black mildew with white spots. Is there a sealant or other surfacing material that I can use to help keep ...
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0answers
153 views

Soutions for this steep gravel driveway - retaining wall?

We are considering buying this property which will be a "fixer-upper" but is in a valuable seaside location that we could never afford otherwise. Biggest drawback is this driveway, which after ...
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1answer
782 views

Composite Shims on Short Retaining Wall

Would there be an issue with using composite shims to help level one layer of block on top of another? Other possible relevant info I am using 6in x 12in retaining wall block. Max height is 3 blocks ...
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5answers
5k views

Setting fence post in gravel/backfill?

I am attempting to build a privacy fence that will sit just behind a retaining wall (as in, on the ground behind the wall and not on the wall itself). While digging today I realized that while the ...
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1answer
60 views

Should this retaining wall have drainage

Should the wall in the picture below have better drainage (e.g. perforated pipes)? And, if yes, is it possible to add them at this point? The walkway above has the same slate top you see at the very ...
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2answers
1k views

Concrete retaining wall with lean and crack, looking for input

We bought our 100 year old house “as-is” a year ago with various small cracks and a firm, but somewhat eroded foundation. This all needs to be addressed eventually, however, a large crack with ...
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1answer
355 views

Foundation for retaining wall on a hardcore base?

I'm looking to build a retaining wall 800mm (2.5ft) high and 225mm wide at the side of my house. During the original construction groundworks, the ground around my house had to be raised up about ...
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2answers
1k views

1m high retaining wall build

I'm hoping to use 215mm concrete breeze blocks to build a 20m long retaining wall at 1m high. Do I need to build the blocks on their flat or can it be a regular single skin wall with piers every so ...
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2answers
88 views

How best to repair a cavity in the base of a retaining wall

I'm looking for some pointers on how best to go about repairing a hole and cavity in slate wall. The wall is the retaining wall at the rear of a house. Above and behind the wall there is a garden. The ...
2
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2answers
2k views

Can I fill cinder blocks with soil/dirt?

I have two short raised beds made of cinder blocks (8 in. and 16 in. tall) that isn't finished yet. I was wondering if it's okay to fill the voids of the blocks with excess soil from my yard? I live ...
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3answers
783 views

How to seal crevices in dry stack rock wall to prevent gopher activity?

I've recently had a retainer wall built in the landscape using the dry-stack method (see photos). Unfortunately, there has already been two occasions within past month of gopher activity behind the ...
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1answer
224 views

Leaning timber retaining wall

I have a timber retaining wall about 4 feet tall builting with 6x6 which is leaning probably due to the downspout draining inside. I'm wondering if using an earth auger to relieve some of the ...
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2answers
168 views

How do I build a fence with zero experience?

I've never built a fence or have never done any outdoor construction. I'm pretty handy and do most of my interior maintenance. I have a total of 780 feet where I need to put up a fence. I'm still ...
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0answers
257 views

Fence post behind retaining wall, drainage concern

I need to replace an old 2ft retaining wall(railroad ties) along my property line. There is not currently a fence there so I was going to take this project to add one. I am located in the PNW so there ...
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1answer
917 views

How do I protect the front side of a wood retaining wall?

I have a wood retaining wall made of 3x12 pressure-treated boards similar to the one pictured here. The backside has MiraDrain and 3/4" drainage rock. I have an excess of earth to manage and one ...
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0answers
124 views

Retaining Wall Supported by Fence

I am working on building a 1.5ft retaining wall in between my yard and my neighbors yard. There was a previously a wood retaining wall but was poorly designed and blown out and I am replacing it. My ...
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1answer
4k views

Retaining Wall Leaking Dirt

In the home my wife and I recently purchased, I noticed more and more dirt pouring out of one side of our retaining wall surrounding our driveway. It occurs right at the seam where the retaining wall ...
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1answer
410 views

Timber Retaining Wall - Beam Replacement

I need to replace a rotted beam in a wood retaining wall (bottom beam in picture). Is it possible to simply slide a replacement beam in place? Also, what about inserting a plastic lining (to the ...
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4answers
2k views

What Kind of Wooden Beam is this

My wife and I recently purchased our first home. We'd like to make a flattened area in our backyard (which is somewhat sloped) for a firepit. My thinking was to dig out a shallow area and fill it with ...
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1answer
286 views

Gabion cage retaining walls: drainage and deadman needs?

I'm having some difficulty finding information about gabion retaining wall construction. We're building a 2' high gabion cage wall to hold back 2' of flat topsoil backfill. There are two aspects I ...
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3answers
374 views

Fencing backyard on the lower side of a retaining wall

Trying to fence my backyard, so that the dog has some room to play and burn some energy, as well as joining us outside during gatherings. My backyard sits on the low side of a retaining wall, which ...