Eastern Distributor
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Inside Shoulder
Nathan Sharpe (72)
We're building a moat
Inside Shoulder
Nathan Sharpe (72)
Inside Shoulder
Nathan Sharpe (72)
To answer you question I'm going to have a good hard look next time I'm in the area
Inside Shoulder
Nathan Sharpe (72)
My lay mans working hypothesis, assuming I have the location right, is that they struck a "spring" or a subterranean water course when the excavated the freeway part - which is where I assume you are talking about.
http://en.wikipedia.org/wiki/Busby's_Bore
http://en.wikipedia.org/wiki/Busby's_Bore
It is what it is
John Solomon (38)
Taxpayer's tears?
mark_s
Chilla Wilson (44)
Its a conspiracy by the car wash companies.
Actually, the natural flow of ground water is from the moore park/randwick area west and then south into the Cooks river. i suspect the Northern barrier is the paddingotn/Surryhills region (which is more elevated), and that ground water north of there flows to the harbour. They would have put drainage into deal with it, but obviously didnt quite get it right.
Actually, the natural flow of ground water is from the moore park/randwick area west and then south into the Cooks river. i suspect the Northern barrier is the paddingotn/Surryhills region (which is more elevated), and that ground water north of there flows to the harbour. They would have put drainage into deal with it, but obviously didnt quite get it right.
It is what it is
John Solomon (38)
Ok then, Waratahs supporter's tears.Its a conspiracy by the car wash companies.
Actually, the natural flow of ground water is from the moore park/randwick area west and then south into the Cooks river. i suspect the Northern barrier is the paddingotn/Surryhills region (which is more elevated), and that ground water north of there flows to the harbour. They would have put drainage into deal with it, but obviously didnt quite get it right.
Scotty
David Codey (61)
Most likely a perched water table which is like a spring as per IS response above.
Perched water table normally occurs a the junction of a rock and clay or sand layer in the ground. The water runs through the clay/sand then hits the rock and can't penetrate, so it runs along the top of that layer.
When you excavate vertically through that layer it causes the water to come through the new surface.
Of course there are some simple drainage designs they could have implemented to stop it affecting the road, but that is asking a bit too much sometimes!
Perched water table normally occurs a the junction of a rock and clay or sand layer in the ground. The water runs through the clay/sand then hits the rock and can't penetrate, so it runs along the top of that layer.
When you excavate vertically through that layer it causes the water to come through the new surface.
Of course there are some simple drainage designs they could have implemented to stop it affecting the road, but that is asking a bit too much sometimes!
A lot of that area floods regularly.
The corner of Cleveland St and Anzac Pde, the corner of Driver Ave and Lang Road, quite a lot of Lang Rd in general outside the Entertainment Quarter and the walking/bike path along Lang Rd next to the Robertson Rd sporting fields/tennis courts etc.
I was once walking from the bus stop along Lang Rd in pouring rain on my way home and when I stepped off the footpath onto Driver Ave near the corner of Lang Rd, I stepped into knee deep water. It was absolutely ridiculous.
The corner of Cleveland St and Anzac Pde, the corner of Driver Ave and Lang Road, quite a lot of Lang Rd in general outside the Entertainment Quarter and the walking/bike path along Lang Rd next to the Robertson Rd sporting fields/tennis courts etc.
I was once walking from the bus stop along Lang Rd in pouring rain on my way home and when I stepped off the footpath onto Driver Ave near the corner of Lang Rd, I stepped into knee deep water. It was absolutely ridiculous.
Inside Shoulder
Nathan Sharpe (72)
I understood that the Tank Stream rose at paddington - about where the old Town Hall is: opposite on the corner of Oatley Rd and Oxford St there is a derelict water storage facility that I had been told in childhood was a former source of water for Sydney.Its a conspiracy by the car wash companies.
Actually, the natural flow of ground water is from the moore park/randwick area west and then south into the Cooks river. i suspect the Northern barrier is the paddingotn/Surryhills region (which is more elevated), and that ground water north of there flows to the harbour. They would have put drainage into deal with it, but obviously didnt quite get it right.
^ on a side note, the City of Sydney Council has turned that into a really nice little park now.
They've even got deck chairs people can sit on in the sun.
They've even got deck chairs people can sit on in the sun.
Inside Shoulder
Nathan Sharpe (72)
Thats what I thought but Wikipedia says otherwise: http://en.wikipedia.org/wiki/Tank_Stream
Edit: but when you read the Busby's bore entry that seems to contradict the tank stream's entry as to the location of Busby's Bore: http://en.wikipedia.org/wiki/Busby's_Bore
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