The estimated costs of the troubled A5 Western Transport Corridor road scheme have now hit more than £1.6billion.
The road project, which proposes to update the existing A5 to dual carriageway between Newbuildings and Aughnacloy, has been beset by legal challenges since it was first proposed in 2007.
A third public inquiry into the delayed project will reconvene in January after being adjourned in 2020.
