A backlog of coal tar waste is delaying infrastructure projects across the island, with over 20 road jobs currently on hold.
The DoI plans to reuse tonnes of the material in the construction of the new Balthane Roundabout and the Ballasalla bypass.
Infrastructure Minister Dr Michelle Haywood stated the material will be processed at the licenced Turkey Lands Quarry.
She explained: “It is holding up over 20 jobs across the island, where we cannot go and dig up roads because of the coal tile waste that is underneath them, and we have nowhere to put it, or any way of reprocessing it.
“So this is one scheme that will deal with a backlog of that and I fully support the engineers recommendations in this matter.”
Stabilised
Dr Haywood added: “The asphalt waste containing coal tar will be fully encapsulated within a stabilised cement bound or foamed bitumen mix and sealed under multiple asphalt layers and a bitumin spray, creating a low permeability structure that greatly reduces water ingress and leachate risk.”
The minister confirmed the approach is informed by site investigations which found no groundwater within a metre of the finished road level.
Work is anticipated to start next year, coordinated around TT and Southern 100 events. A broader waste management strategy is expected early next year.