i have excavated for my foundations to build my two storey extension. it has now filled with water and at some points it is 100mm deep. how far do you think I will have to dig down for solid earth, 6 to 12" possibl?
2007-08-07 08:28:33 · 5 answers · asked by Anonymous in Home & Garden ➔ Do It Yourself (DIY)
When you are done the excavation will have to be approved by the local building inspector before you can put the foundation footings into the holes. You may as well ask him what the correct answer is because only his opinion (not ours) counts if you ever want to get a certificate of occupancy. If he doesn't like what you do he will stop the construction so you need to get it right.
2007-08-07 16:02:50 · answer #1 · answered by Rich Z 7 · 1⤊ 0⤋
This depends entirely on the type of ground being excavated. IE a clay soil will require greater depth than say chalk. also minimum depth of dig should be shown on the plans, although this is not necessarily adhered to, the final word has to be that of your local Building Inspector who will examine the trenches as dug and will judge if it is adequate
2007-08-08 12:03:49 · answer #2 · answered by SAPPER 5 · 1⤊ 0⤋
If you are in the U.K. then for a two storey extension you obviously have to adhere to Building Regulations. A typical depth for foundations being 1.0M - 1.5M depending on soil type etc. The local Council officer will advise on the correct depth expected.
2007-08-07 15:38:58 · answer #3 · answered by Mike J 2 · 4⤊ 0⤋
I'm inclined to think this water you mention is subject to the water "table" in your area. Even if you dig down further, say another 12" you are likely to end up with,... another 12" of water due to the water table, which will find it's own level. Just ask your local building department/inspector, they will advise.
2007-08-07 17:20:14 · answer #4 · answered by Dick s 5 · 0⤊ 0⤋
10 feet.
2007-08-07 15:33:27 · answer #5 · answered by taxed till i die,and then some. 7 · 0⤊ 2⤋