ᐅ Costs for soil replacement, geotechnical survey of the building site, clayey soil

Created on: 3 Sep 2013 21:51
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PhoenixDH
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PhoenixDH
3 Sep 2013 21:51
What costs should you roughly expect per cubic meter if the soil report comes back unfavorable?
Our soil has a high clay content, and we are concerned that we might need to carry out soil replacement.

Of course, you only know for sure after the soil report, but we want to have it done as soon as possible so it can be included in the financing if needed.
Such a report doesn’t expire, right? Especially since soil conditions usually don’t change.

Thank you.
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PhoenixDH
4 Sep 2013 09:34
Phew, that's quite a lot!

It probably makes sense to have the soil survey done as soon as possible, so it can be factored in.
Der Da4 Sep 2013 10:28
We had to bring in 400 m³ (about 520 cubic yards) of a gravel, sand, and crushed stone mix under the house. On average, the fill height was about 1.10 m (3.6 feet).
The cost for this alone ranged from €11,000 to €15,000 according to the quotes. Additionally, you need to account for storage and possible disposal of the excavated material. This is usually more expensive than the filling process itself.
It is also important to agree on how the excavation is measured, compacted, or loosened. For soil, this factor can be as high as 1.5, which can lead to a big surprise on the final invoice. I would recommend agreeing on a contract based on tons. That is a clear measurement.
We agreed on a fixed price for everything. In the end, the subcontractor used a bit more gravel, but I don’t think it was a bad deal for him. After all, we spent almost €30,000 on our earthworks.
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PhoenixDH
4 Sep 2013 10:52
Oh my God, I think I’ll have the report done quickly.

Can someone tell me if this will expire at some point?
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Bauexperte
4 Sep 2013 12:11
Hello,
PhoenixDH schrieb:

Can someone else tell me if this ever expires?
Why would it? The land only changes if you make alterations to the existing structure.

Best regards, Bauexperte
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PhoenixDH
4 Sep 2013 19:51
I contacted the company responsible for the concrete slab today, and they said the soil report is not necessary.

Here is the following excerpt:
It is recommended to prepare a soil report specifically for your building site in order to clearly define any necessary measures regarding the foundation.

So, it seems advisable to have the report done to be on the safe side and to be able to take action if needed, right?

What should I pay attention to when commissioning a soil report?

Thanks!