Published Wednesday, 20 June 2012
The investigations will start later this year. (© Pacemaker)
One is centred on the proposed A26 Glarryford dual carriageway in Co Antrim, the other on the proposed A6 Londonderry to Dungiven dualling project.
Regional Development Minister Danny Kennedy said the A6 project attracted 122 objections and 11 representations during its consultation period.
An inquiry is scheduled to start towards the end of September 2012.
Meanwhile the planned upgrades between Glarryford and the A44 Drones Road Junction attracted 20 letters of objection and nine letters making comment during consultation.
The public inquiry is scheduled to commence in early November 2012.
Speaking about the Glarryford situation, the UUP minister said that while his department had "only a small number of objections", he wanted to open up the debate.
Mr Kennedy said: "Projects of this scale will usually result in a Public Inquiry and I welcome the interest from affected landowners and local residents."
He added that the A6 project, which covers 30km extending from a new roundabout in Derry and stretches along the existing A6 route with a bypass at Dungiven, generated "considerable interest" and hopes an inquiry will allow those affected to voice their concerns.
"The Public Inquiry provides a process where the representations and objections from affected landowners, businesses and local residents can be heard in an open and independent forum," said Mr Kennedy.
"I hope many of the matters of concern can be addressed either before or at the Public Inquiry."