The delays on the A6 around Moneynick are costing investment and jobs, industry leaders say.
Trade body Manufacturing NI says improvement work needs to begin ‘immediately.’
The bypass plans have proved controversial however.
Part of the proposed £160m scheme would dissect 'Heaney Country.’
The nine-mile dual carriageway is set to replace the existing road from Castledawson to the M22.
Chief Executive of Manufacturing NI, Stephen Kelly says the delay is having an adverse impact upon firms.