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46 votes
Accepted

How to dig a trench for a cable for a garden office

You got a bad roll of the dice. Very good ideas and attempts that would work in more normal soil conditions. The problem is, if you continue then you will likely undermine the soil because that small ...
Ack's user avatar
  • 5,719
33 votes

How to dig a trench for a cable for a garden office

Change your wiring method You started with non-metallic jacketed cable, requiring 500mm of cover. That's similar to the US where cover must be 24" for that type of cable. However, the US has other ...
Harper - Reinstate Monica's user avatar
26 votes

How do I know who planted "no dig" flags and when I can remove them?

I received an answer from the New Jersey One Call center, in less than an hour! There is an online search tool. It's not obvious how to find or use it, so here are their complete instructions: ...
jay613's user avatar
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23 votes
Accepted

Does it matter if my underground conduit overlaps or crosses over existing conduits?

Crossing existing utilities is no problem; it happens all the time. Just be careful when digging. There is probably a prescribed margin to either side of the marks within which digging must be done ...
Greg Hill's user avatar
  • 30.3k
20 votes

How to dig a trench for a cable for a garden office

Too narrow to be practical in soil with normal obstacles. Some may advise renting machinery, though most typical "trenchers" are likely to have an expensive "oops" when they meet your buried debris. ...
Ecnerwal's user avatar
  • 210k
19 votes

Right tool to dig six foot holes?

Depends a lot on the ground. The advice to call for utility locating ahead of time is spot-on, no matter what you do to dig them. In my ground, an auger is generally useless, since it will find a ...
Ecnerwal's user avatar
  • 210k
18 votes
Accepted

Is digging with a shovel near gas lines dangerous?

I speak as a former engineer for a utility that provides both gas and electricity. Gas lines are typically metal or plastic. If plastic, they're very likely thick enough to withstand most hand digging ...
pdtcaskey's user avatar
  • 324
18 votes

How to avoid breaking electric wires, telephone wires, and water pipes in the garden while digging

France founded a centralized bureau to manage nation-wide location of public utilities in 2011, so you're in luck. You can find them here : Téléservice "réseaux-et-canalisations" Vous êtes ...
J...'s user avatar
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16 votes

How to dig a trench for a cable for a garden office

I have dug hundreds of trench’s in my life and never seen one so narrow , wow. I use a narrow spade maybe 6” to 8” or . 2 meters wide to go down 18” max, and a full width of 10” or .25m wide to go ...
Ed Beal's user avatar
  • 103k
16 votes

How to avoid breaking electric wires, telephone wires, and water pipes in the garden while digging

In most parts of the world, official utility connections will be marked if you contact a "call before you dig" number that coordinates contacting all the utilities that might have buried ...
Ecnerwal's user avatar
  • 210k
14 votes

Dealing with remnants of old fence post

Lazy and smart often go hand-in-hand. Dig around the old concrete to free it. Now dig a hole next to it. Tip the concrete into the new hole. Bury it and chive on.
isherwood's user avatar
  • 135k
13 votes

How to avoid breaking electric wires, telephone wires, and water pipes in the garden while digging

There do exist instruments for locating buried utilities. Vivax, Radiodetection, Leica, and Greenlee/Textron are names of manufacturers I'm aware of. This equipment operates on the principle of ...
Greg Hill's user avatar
  • 30.3k
11 votes

How to dig a trench for a cable for a garden office

Having done this to pull 40A 220v back to my workshop, you're digging too narrow a trench. Get a shovel out and dig the trench at least the shovel-width. You're going to want to go down at least 18&...
Michael's user avatar
  • 111
9 votes

Does it matter if my underground conduit overlaps or crosses over existing conduits?

You can put your new underground line at that location. Where it may get tough is the depth of the trench: if the existing lines are just at 18 or 24”, depending on your run. If you are using UF you ...
Ed Beal's user avatar
  • 103k
8 votes

How to dig a trench for a cable for a garden office

My answer assumes you are certain there's nothing significant or structural buried under there and it's just backfilled with construction waste over the years. As a kid I dug my fair share of trenches ...
chopper24's user avatar
8 votes

Is digging with a shovel near gas lines dangerous?

Just an experienced digger answer here... I worked for landscaping companies in my teens and while some of the lawns were marked, many were not. Basically you want use a tipped shovel - not a ...
DMoore's user avatar
  • 48k
7 votes

How to avoid breaking electric wires, telephone wires, and water pipes in the garden while digging

If the natural ground is very hard, you can try an archaeological approach. Remove the top soil in a wider strip than you actually need to be able to detect different colours of the ground. If the top ...
Surt's user avatar
  • 171
6 votes

How to dig a trench for a cable for a garden office

Long way around? There used to be something in your back yard. Maybe a number of somethings over the years; I understand people have lived in the UK for some time. Maybe your direct line to the ...
Willk's user avatar
  • 6,593
6 votes

Setting fence post in gravel/backfill?

I watched my fence installers and there where some areas that had a lot of stone. They would take a pointed metal rod and jam it into the hole to loosen up the rock and then use the post hole digger ...
Platinum Goose's user avatar
6 votes

Setting fence post in gravel/backfill?

First and foremost, will setting two posts in concrete behind this wall create any structural risk to the wall? You will not be adding any loads to the retaining wall that are of much concern. The ...
Ack's user avatar
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6 votes
Accepted

Dealing with remnants of old fence post

If the block is in almost the right place, then re-use the old post hole. Use an old chisel, to break up the old wooden post in the socket of the concrete. Alternatively, use an old large diameter ...
TFS's user avatar
  • 76
6 votes

How do I know who planted "no dig" flags and when I can remove them?

New Jersey One Call FAQ How do I know who requested them? Who marks the lines? Facility operators are responsible for marking out their facilities; often, they will have a third party company do ...
UnhandledExcepSean's user avatar
5 votes

Setting fence post in gravel/backfill?

Once it's in place most gravel is not all that mobile, but it's also not hard to dig. I would not bother with a power auger, a clamshell posthole digger should get it done easily. I've just revisited ...
Ecnerwal's user avatar
  • 210k
5 votes

Is digging with a shovel near gas lines dangerous?

A gas line is usually either iron or steel (older installations) or HDPE (i.e. plastic used in newer installations) and either one can be damaged by careless excavation. Often the steel/iron lines ...
jwh20's user avatar
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5 votes
Accepted

How to safely pull Internet cable out of soil?

Couple things here. There is a good chance you don't have enough cable to do this. Before even thinking about it you will need to check the slack on both sides. If there are hooked up outside and ...
DMoore's user avatar
  • 48k
5 votes

Dealing with remnants of old fence post

You could: Drill some holes with a masonry drill bit Attach metal eyebolts to the top of the concrete Attach chains Lift with a car jack, farm jack, or tractor bucket if you've got one For the car ...
MonkeyZeus's user avatar
  • 16.5k
5 votes

How do I know who planted "no dig" flags and when I can remove them?

In the US, no matter which state you are in, you can contact your local 811 center, which is literally as simple as dialing 811. They may be able to give you information about the marked area ...
Herohtar's user avatar
  • 192
4 votes

Right tool to dig six foot holes?

My personal favorite is vacuum excavation. It's nothing fancy nor expensive; a respectably large wet-dry vac does the job nicely. By "respectably large" I'm suggesting something with a 2.5" suction ...
Greg Hill's user avatar
  • 30.3k
4 votes

Right tool to dig six foot holes?

I dug some deck footers a couple years ago and my rental shop had 10" auger bits with a two-man auger (4 handles and a motor in the middle) for about $100 a day, made quick work of several holes like ...
Fredric Shope's user avatar
4 votes
Accepted

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

In my experience it's nearly impossible to push such a concrete wall back to its original position. The best approach is to break it up and remove it and then if you want a wall there, replace it with ...
jwh20's user avatar
  • 23.2k

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