Mickleham Building
Inspections

Soil, slabs and movement in Mickleham VIC

Mickleham lies on the basalt plain of the Merri Creek catchment. The Merri Creek Management Committee records that 84 per cent of the catchment sits within the Victorian Volcanic Plain, dominated by Newer Volcanic deposits. Where residual basaltic clay is present it is reactive on the same documented basis as the adjoining Craigieburn and Donnybrook corridor: clay derived from weathered basalt is subject to considerable shrinkage and swelling as moisture changes. Kalkallo Creek runs through Mickleham, and a major retarding basin was built on it after the Merri Creek flood of May 1974.

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The suburb sits in the Merri Creek catchment on Newer Volcanics basalt.

Residual basaltic clay shrinks and swells considerably as moisture changes.

Kalkallo Creek is a recognised flood management corridor through the suburb.

A retarding basin was constructed after the May 1974 Merri Creek flood.

Site classification is per lot and comes from your own soil report.

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Written by our local inspection team from work carried out in Mickleham. Licensed building practitioners.

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FAQ

Soil, slabs and movement in Mickleham VIC: common questions

Is Mickleham ground reactive?

Where residual basaltic clay is present, yes. It is the same Newer Volcanics material as the Craigieburn and Donnybrook corridor, documented as subject to considerable shrinkage and swelling with moisture change.

Is flooding a consideration here?

Kalkallo Creek runs through Mickleham and is a recognised flood management corridor, with a retarding basin built after the 1974 Merri Creek flood. Whether a specific lot is affected is a planning overlay question for your conveyancer.

What class is my block?

That comes from your own soil report. No suburb-wide classification exists, because AS 2870 classification is determined per lot.

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