2007 – M50 Upgrade (Phase 1)
2010 – M50 Upgrade (Phase 2)
SCHEME DESCRIPTION – Route
The M50 mainline will be upgraded to dual 3-lane motorway standards from the M1Motorway junction to the junction at Sandyford. In addition, auxiliary-weaving lanes will be provided between successive junctions from the M1 junction, right through to the Scholarstown junction, to facilitate safer merging on and off the M50 between these junctions. Ten junctions from the M1 to Sandyford junction will be upgraded to facilitate access across, and on and off the upgraded motorway. Where the modification of the existing junction layouts would not provide adequate capacity to satisfy demand, reconfiguration to partial free/free flow interchanges is proposed.
http://www.nra.ie/PublicPrivatePartnership/SchemeInformationBrochuresforTenderers/file,1192,en.PDF