Karnup Road update

Published on Tuesday, 7 September 2021 at 3:46:28 PM

This page was last updated at 3.10pm Wednesday, 8 September 2021.

What has happened?

After the record rainfall we experienced in July and the significant storm event and flooding, a drain pipe (culvert) under Karnup Road, Serpentine (near Wellard Street), failed and caused a sink hole on 21 July, 2021.

Following inspection of the drain, it has been identified that a 24-metre length of 2m x 1.5m diameter ribbed steel pipes have rusted out and require replacement.

Is Karnup Road still open to traffic?

No, the road has been closed to traffic as part of safety measures. Traffic management is now in place.

Motorists are encouraged to allow extra time and follow traffic management instructions.

What is the Shire doing to fix the issue?

The condition of the road over the culvert is being monitored daily.

The Shire’s Engineering Team has commenced the procurement process to engage a consultant to assist with the detailed design drawings and specifications for a full replacement of the pipe.

This will be followed by engaging a contractor to carry out the culvert replacement works.

A report will be presented to the September Council Meeting for Council to consider short-term and long-term solutions for the road as well as to consider funding allocations for the above-mentioned works.

How long will this take?

It is estimated it will be at least six months until the replacement works are carried out and complete.

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