At the Eastern end of the bypass another new bridge has been completed and is already carrying Ffestiniog Railway trains over the new road.
Mr Jones, the Wales Minister for the Economy and Transport, said following a tour of the route that work on the long-awaited road was progressing at an impressive rate.
The Tremadog, Porthmadog and Minffordd bypass is one of the largest construction projects currently under way in Wales and will be 5.3km long when complete. It is being built for the Welsh Assembly Government by a joint venture partnership of Balfour Beatty and Jones Bros Civil Engineering UK.
Pictured below are Deputy First Minister Ieuan Wyn Jones, Welsh Assembly Government roads and projects division project director Chris Tollitt, Balfour Beatty regional director Paul Brown and Jones Bros managing director Huw Jones at the Porthmadog bypass site, as a Welsh Highland Railway passenger train passes by on the way from Porthmadog to Caernarfon.