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  • Peter

Southern River - subsidence

Below are a before and after photo of a subsidence adjacent to a drain in a commercial carpark in the Perth suburb of Southern River.

The subsidence was excavated, the leakage into the drain was sealed and backfilled with 7mm granite black asphalt/hotmix.

The patch was heavily compacted, edges trimmed and sealed flush with the surrounding surface.

The patch was covered with sand (which prevents scuffing) to allow for immediate traffic use.

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