My understanding is that Dispersive Soils are soils that dissolve in water and then wash away. In extreme circumstances they can form tunnels underground which may eventually collapse resulting in ground subsidence.
Comprehensive site testing and expert advice is my suggestion before building or just walk away from this site.
thanks Beetaloo yes, I'm planning a soil test if we get to contract stage, hopefully this will shed light on construction implications if any
interestingly council tell me only the rear of the property is subject to "minor" soil dispersion; yet the image above indicating dispersion is at the front of the property!!
regardless, it does place a question mark over the property and perhaps it isnt worth the risk
Beetaloo
My understanding is that Dispersive Soils are soils that dissolve in water and then wash away. In extreme circumstances they can form tunnels underground which may eventually collapse resulting in ground subsidence.
Comprehensive site testing and expert advice is my suggestion before building or just walk away from this site.
interestingly council tell me only the rear of the property is subject to "minor" soil dispersion; yet the image above indicating dispersion is at the front of the property!!
The fact that there is a trough adjacent to your arrow indicating the dispersive soil is no coincidence. A bunch of cattle milling around a trough a few times a day especially in prolonged wet weather will plough up the land pretty quick leading to eroded banks. I wouldn't read much into that at all.
good point........but not sure how long it's been since cattle were there
only a soil test will reveal i suspect
Stewie D
Quote:
interestingly council tell me only the rear of the property is subject to "minor" soil dispersion; yet the image above indicating dispersion is at the front of the property!!
The fact that there is a trough adjacent to your arrow indicating the dispersive soil is no coincidence. A bunch of cattle milling around a trough a few times a day especially in prolonged wet weather will plough up the land pretty quick leading to eroded banks. I wouldn't read much into that at all.
There is also no point getting the whole site tested by a geotech engineer. Just work out where you think the best spot for a house would be and get that part tested unless they can do a broader test for not much more. The same guy should also be able to advise you on what would be required regarding your house design structurally if you already have a certain design type in mind.
but i think we will let this one go, it turns out there is a covenant that states the owner of the land next door requires me to keep the gate closed and locked (this is not a fenced, livestock property), and that they control/manager the gate; they've effectively given themself control over my access, which isnt desirable
Stewie D
There is also no point getting the whole site tested by a geotech engineer. Just work out where you think the best spot for a house would be and get that part tested unless they can do a broader test for not much more. The same guy should also be able to advise you on what would be required regarding your house design structurally if you already have a certain design type in mind.