Eastern Bypass of the city has been proposed. This plan is controversial, as it would require a tunnel across Sandymount Strand to or possibly through Booterstown marsh bird sanctuary. A motorway reservation from Sandyford to Booterstown was included in the Dún Laoghaire–Rathdown Development Plan, with space allowed for an interchange where it crosses the N11. The Dublin Port Tunnel, which opened on 20 December 2006, would form the northern half of the Eastern bypass. This project was cancelled in 2009. Another outer orbital road has been proposed for the Dublin region. It will, if approved, run approximately from Drogheda via Navan, Trim and Kilcock towards Naas. See also M50 Roma encampment N40 Roads in Ireland Motorways in Ireland National secondary road Regional road European route E01 References External links Roads Act 1993 (Classification of National Roads) Order 2006 – Department of Transport M50 Motorway Upgrade Environmental Impact Statement on M50 Upgrade Scheme Easytrip eFlow Motorways in the Republic of Ireland Roads in County Dublin Ring roads