The most commonly used pipe laying method for large sized critical water pipe renewals is open trenching. This involves digging a trench either around or alongside the existing pipe, removing the old pipe and replacing it with a new pipe.
The duration of this work varies depending on the length of the pipe being renewed, the location of the pipe and the complexity of the work. We may be working in the area for a few months. However, generally, work progresses along the street and is only outside a property for a few weeks at a time.
Critical pipe renewals also include testing and cleaning. When the pipe is being tested and cleaned there is generally no work happening in the street. In most renewal situations we will not be working near your property for the full length of work, and we often work on in multiple locations across a suburb.
Often trunk pipes are underneath busy roads. In these locations the Roads and Maritime Services (RMS) may only give us a permit to work at night. We notify residents and businesses owners in advance of the nightwork starting.
Where possible, NetWorks Alliance uses a range of innovative pipe laying techniques that can have substantial benefits.
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