Assessment and management of naturally occurring asbestos within road construction fill, enabling safe onsite encapsulation and avoiding significant disposal costs.
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Naturally Occurring Asbestos (NOA) was identified within a layer of placed fill beneath an existing road during construction of a new bypass in regional NSW during removal of the old pavement.
BBN was engaged to assess the extent of NOA impact and develop a management strategy that would allow works to continue safely and compliantly, while minimising environmental and commercial impacts.
» The extent and distribution of NOA-impacted material across disturbed and stockpiled areas
» Confirming total material volumes could be safely accommodated within the designated encapsulation zone
» Sensitive nearby receptors requiring 24-hour air monitoring
» Managing asbestos-related works within an active, large-scale construction environment alongside other concurrent activities
» Enabled all NOA-impacted material to be safely consolidated and encapsulated onsite, avoiding offsite landfill disposal and an estimated $4 million in disposal costs
» Continuous 24-hour air monitoring recorded zero exceedances, ensuring protection of workers and nearby receptors
