On 23 May 2006 09:23:01 -0700, a particular chimpanzee named
" randomly hit the
keyboard and produced:

There is a 4" soil drain which will go under the rear wall of the
extension. Do I run the footings to either side of the pipe leaving
approx 6" gap and then the brickies will place a lintel to bridge the
pipe?

No. You will need to excavate below the pipe, making sure that if the
footings are stepped down, the concrete overlaps by twice its
thickness, and leave at least 50mm clear between the pipe and the
concrete. The wall is then lintelled over as you describe.
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Hugo Nebula
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