Skip to main content

Questions tagged [retaining-wall]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
0 answers
28 views

Depth of foundation for retaining wall next to basement wall

I am in the planning phase of building a retaining wall. I did research and it says below the frost line. However, where do you start counting? The exposed height will be about but not exceed 32&...
cybernard's user avatar
  • 271
0 votes
0 answers
48 views

Is building a retainer wall my only option?

Our house foundation in construction now is 2ft away from the road as well as 2ft below the road level. Do I have any other option besides building a retaining wall to avoid rain from flowing in ...
Fan Wan Lai's user avatar
1 vote
0 answers
84 views

Do I need concrete footings for a wooden retaining wall?

I'm planning to build a short (16") wooden retaining wall in my back yard. The general idea is to sink 4x4s into the ground every 32" and then attach 2x8s behind them so the back fill helps ...
Jordan Kizer's user avatar
1 vote
1 answer
114 views

How close can I set a post to the base of a retaining wall?

Any recommendations how close you can put a post (4”x4”) which will be 2 feet deep in the ground and close to retaining wall? The wall is just 1 year old. I am going to build 3 sides of fence to cover ...
PowerTech's user avatar
  • 786
1 vote
1 answer
68 views

How can I cap or extend a drain pipe cut flush with a retaining wall?

I have a retaining wall in which there is a drainage pipe. How can I extend this drainage pipe so I can put a cap it extend it? Right I am not able to as the pipe is short and flush with the retaining ...
PowerTech's user avatar
  • 786
0 votes
0 answers
63 views

retaining wall calculation and estimation

I have a 17" thick retaining wall which is leaning. I measured 3 points today: 33" high, 6 degree leaning, outward offset top to bottom 3.5", abbuted to lawn, no load bearing; 36" ...
Abc Def's user avatar
0 votes
0 answers
50 views

French Drain inlet into/under retaining wall

I have a basement egress into a weird large walkable trench that awkwardly divides my yard. I think this was done partly following a cusp in the original landscape while solving for drainage in a ...
Jason Kleban's user avatar
0 votes
1 answer
371 views

How do I prevent pest access to a French drain pipe going through a retaining wall?

We just had our retaining wall rebuilt by a contractor but for some reason they left the French drain pipe just hanging out unfinished over the sidewalk. What is the best way to deal with it? ...
jmjfisher's user avatar
0 votes
0 answers
29 views

is the grade behind new retaining wall ok?

Had a 60 year old stone and mortar wall replaced with a new modern stone wall. Hired a local company to do it and it looks good but it's considerably shorter than I thought it was going to be. Is the ...
tnebea's user avatar
  • 1
2 votes
1 answer
97 views

Shoring up side of old raised concrete

I live in an old (1920) Baltimore rowhouse. The concrete basement floor was—as far as I can tell from having drilled in a few spots—poured over a pretty variable, haphazard substrate, probably just ...
CrazyChucky's user avatar
0 votes
0 answers
133 views

Digging near a retaining wall

I'm thinking of ideas for building a shed on the side of my house, and a good spot in my opinion would be to have it on the side of my house. My property is a thin long lot so my front yard is all ...
Sean's user avatar
  • 1
1 vote
2 answers
103 views

Number of posts needed? [closed]

I have no idea what math needs to be done to figure this out, but let me set the stage for you. I'm building a BIG planter box in my yard. 27ft X 54ft X 5ft high. We want to utilize our whole yard to ...
bob152637485's user avatar
0 votes
2 answers
286 views

How can I build a retaining wall and secure these fence posts while conserving space?

I have leveled the area between our building and the fenced property boundary, removing soil next to the brickwork, which required me to work around four fence posts. Now, I plan to build a modular ...
Reza's user avatar
  • 571
0 votes
1 answer
187 views

How do I properly rebuild this retaining wall?

Retaining Wall breakdown progress I wanted to replace the posts on my porch but the retaining wall was getting dangerously close to them so I had to address it first. I started taking it down and I ...
Elias's user avatar
  • 113
1 vote
1 answer
71 views

What's the safest way to pour a slab without undermining existing posts [closed]

Im working on a 2 story addition that is resting on 6x6 posts. Unfortunately due to timing I was unable to work out pouring a slab prior to our contractor begining our addition project and pouring the ...
Squirrel's user avatar
0 votes
0 answers
71 views

What concrete mix product to use to fill retaining wall’s sleeve

I have a 6' retaining wall and as per code, it requires railing for safety. While building the retaining wall I ask the contractor to install a sleeve every 4 to 6 feets. Now we have sleeves installed,...
PowerTech's user avatar
  • 786
0 votes
1 answer
509 views

Leaning sloped retaining wall

I’m trying to fix a 10 years old sloped leaning retaining wall on the side of the house. I have done a lot of research and the causes can be summarized as follow: Improper drainage that cause ...
Henry's user avatar
  • 21
2 votes
1 answer
415 views

Type of drill to use for installing reinforcing rebar 18" into wood retaining wall?

I just finished assembling the frame for a gravel pad where I plan to put a shed. Because I put it into the side of a slope, I needed to use 5 layers of 4x4's to get the proper depth. Currently ...
Greg Stecker's user avatar
0 votes
0 answers
39 views

Exterior Retaining Wall Leaning Options

MY house was built in the mid 70's and has foundation issues everywhere. I recently spotted one of my retaining walls leaning. I have explored the cost to have my foundation company place more deadman ...
sillykumquat's user avatar
0 votes
1 answer
53 views

Replacing broken concrete yard barrier and steps

New homeowner here! My neighbor's lawn is shown here on the right. Their lawn stops at the triangular concrete slab at the bottom-right of the first image. The semi-broken concrete barrier (retaining ...
gleepglop's user avatar
2 votes
1 answer
77 views

How to repair small concrete retaining wall

I have a small retaining wall between the walk at the back of the house, and a flower bed. The wall also support small pillars for a roof overhang. There is a break in the wall, that over the years ...
RoJo's user avatar
  • 21
1 vote
2 answers
500 views

How should I attach sacrificial anodes to steel columns in concrete?

Soldier pile retaining wall. We're putting 25 foot long w8x48 beams into 16 foot deep holes and filling with concrete. So the steel beam is encased in concrete. I would like to increase their ...
user227963's user avatar
  • 1,088
0 votes
1 answer
256 views

How can I build a retaining wall which looks like a fence? [closed]

The back fence of the garden is on top of a very weird, small slope. I want to level out the garden by going down. I need ideas on how to build a retaining wall, to look like part of the fence. I’m ...
KEJohns's user avatar
1 vote
0 answers
113 views

Reinforcing a Vertically Plumb Concrete Block Retaining Wall

I'm in the process of replacing a retaining wall that was supporting a small "flower bed" in the front of this house because it had started to lean to the point it was unsafe. Unfortunately, ...
Cody Smith's user avatar
1 vote
0 answers
176 views

Do I need to worry about a leaning, 60 year old retaining wall?

I have a 5 foot high retaining wall, made with CMU blocks, built in 1962. I don't have much information about (e.g. the shape of the footing, depth, etc) other than that it seems to be just a gravity ...
Dong Shi's user avatar
0 votes
1 answer
725 views

Weep Vents for double skin retaining wall

I'm going to building a retaining wall to level my garden. The wall is not touching the house, I'm trying to work out the drainage solutions for this wall. Its not going to be too dissimilar from the ...
JackU's user avatar
  • 111
3 votes
1 answer
712 views

Compacting gravel on wet ground

I'm building a retaining wall from concrete blocks. The foundation will be 8 inches of 3/4 inch gravel compacted with a plate compactor. The trench is dug, but it has rained a good bit the last two ...
Chip Burwell's user avatar
0 votes
0 answers
32 views

Compacted 8910 after heavy rains

I am working on a retaining wall. My footer is 18” deep x 24” wide. I have a compacted layer of 8910 that is 6” deep placed in 2 lifts and compacted well after each lift. It felt pretty solid. Started ...
Thomas Nails's user avatar
0 votes
3 answers
261 views

Would burying a wooden retaining wall cause problems?

CLARIFICATION: Any issue regarding the function (pinning dirt in place) of the retaining wall is not at issue for this question. A wooden retaining wall has been illegally built in an HOA to support ...
gatorback's user avatar
  • 3,088
0 votes
1 answer
699 views

Drainage for playground with 12 inches retaining wall?

I am building a playground area, and as part of having the ground level, I ended up building a retaining wall, and I have a question about drainage. Some data on the project: The wall will be ...
Nobita's user avatar
  • 317
0 votes
2 answers
1k views

Can I install aluminum railing on the top of the 6 feet retaining wall?

I have contractor company building a retaining wall for me which is 6 feet tall wall. They don't install fence. So I have the cap glued down properly and secured. Can I get the railing install on top ...
PowerTech's user avatar
  • 786
0 votes
1 answer
121 views

Can I have 100% flat space behind Retaining wall?

I have steep slope in my backyard and I hired a contractor company to build a 4 feet average retaining wall for me so that slope can be leveled. They are almost done and now are saying there will be 1-...
PowerTech's user avatar
  • 786
0 votes
0 answers
24 views

What specific tradesman should I call to rebuild a failing below grade retaining wall and the porch above it?

The stairs to the exterior entrance to my basement run parallel to my house and under my kitchen porch, which has a trap door to access it. The retaining wall, which runs parallel to the foundation, ...
domicile's user avatar
  • 111
0 votes
1 answer
609 views

Retrofitting Drain Where Patio Meets Retaining Wall

I just installed a patio 24' x 22' with a retaining wall that is around the perimeter of it, and it looks like water pools too much at the end of the slope (where patio meets retaining wall). There ...
Skylimit57's user avatar
-1 votes
2 answers
160 views

How close to align pavers up to a timber retaining wall

I'm wanting to lay concrete pavers on a walkway sloped towards a timber retaining wall. The question I have is how close to the timber retaining wall should I lay the pavers. Laid immediately up to ...
Andrew's user avatar
  • 1
2 votes
1 answer
380 views

Rainwater Pipe Through Gabion Wall

I need to build a relatively short and about 70-100 cm high retaining wall in my garden. I have chosen to make it out of gabion for various reasons, one of them being price. The main reason, however, ...
Topper Harley's user avatar
0 votes
1 answer
129 views

Can a small wood retaining wall be replaced by trees?

There is a small retaining wall on my property, made of wooden blocks. It is slowly deteriorating, so I had an expert come to check it out: they said it would be good for at least another 10 years, ...
user4867444's user avatar
0 votes
2 answers
388 views

How to pile drive hooked rebar

I use a combination of a sledgehammer and jackhammer to drive [straight] rebar for use in retaining walls . The former gets the stakes started and the latter really drives them home with authority. ...
WestCoastProjects's user avatar
0 votes
1 answer
308 views

How do I fix this retaining wall?

I have a broken retaining wall that I'd like to fix up. It's cracked, presumably from water pressure building up behind it. It's rectangular, about 13'x33', and one of the four sides is connected to ...
Taylor's user avatar
  • 113
0 votes
1 answer
214 views

Railing over tall Retaining wall

I have leveling my slopped backyard. In order to leveled it, the retaining wall will be 5.5' tall and 20 feet long. we are using AB classic (8 in. H x 12 in. D x 18 in. ) weight 75 lbs. Is it ok go ...
PowerTech's user avatar
  • 786
0 votes
2 answers
738 views

Retaining wall on top of concrete AND next to fence

I have an outdoor area which is currently pebbled and retained next to a fence. I plan on removing the pebbles and turfing, and am also considering planting a green hedge because I don't like the look ...
Dan the not so handyman's user avatar
0 votes
2 answers
115 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 ...
Wynne's user avatar
  • 1,541
0 votes
2 answers
1k 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 ...
LRitter's user avatar
  • 99
3 votes
3 answers
2k 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" ...
pennstump's user avatar
  • 223
1 vote
2 answers
506 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 ...
Labarc35's user avatar
0 votes
2 answers
5k 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 ...
Erin's user avatar
  • 1
0 votes
0 answers
55 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 ...
NathanPolomona's user avatar
0 votes
2 answers
1k 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 ...
Spectrem's user avatar
  • 213
1 vote
1 answer
3k 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 ...
pennstump's user avatar
  • 223
3 votes
3 answers
3k 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 ...
pennstump's user avatar
  • 223