The Taoiseach has given a cast iron guarantee on the A5.
Leo Varadkar was in Derry last evening where he gave a speech at the city's annual Chamber of Commerce dinner.
He said the Irish Government's commitment to the A5 development is cast iron and money has been allocated by the Minister for Finance.
The Taoiseach also said critical road connections from Dublin included roads into Donegal and Letterkenny.
In welcoming Leo Varadkar's commitment, Government Chief Whip and Minister Joe McHugh says; 'The Taoiseach recognises very well the infrastructural challenges of the entire North West, of Donegal and Derry, and the need to improve transport links.'