07 Oct 2022

M7 widening from Naas to M9 junction starts on Wednesday

Two years of further delays ahead

M7 widening starts today from Naas to Kilcullen

The backlog of traffic near Kill

From Wednesday, January 3, and continuing for the next two years, motorists can expect further delays on the N7/M7 road as a project to add a lane to the road begins. 

The M7 carries approximately 70,000 vehicles per day and is the main connection to the M9 to Waterford, the M8 to Cork and the M7 to Limerick. The work will also include a bypass of Sallins and a new Interchange at Osberstown and is expected to be completed in early 2020. However the motorway has capacity for only 52,000 vehicles daily on the Naas to Newbridge bypass.

Since the economic recovery, and the widening of the N7 from Newlands Cross to Naas, congestion has grown on the major artery at rush hour. Evening time, in particular, has seen massive queues, stretching back well past Kill as the traffic deals with narrowing of the road at Naas north, and jockeying for position before the M9 exit to Kilcullen, Athy and Kilkenny.

The widening of the existing M7 motorway from two lanes to three lanes with apply to both eastbound and westbound for approximately 14km, between Junction nine Naas North, at Maudlins and the M7/M9 interchange at Junction 11. The work will include replacing and relocating the existing ramps at Junction 10 Naas South Newhall to the main Naas Newbridge dual carriageway, the R445.

It will also include the construction of a new interchange at Osberstown between Junctions 9 and 10 which will be designated Junction 9a. The Sallins Bypass will include approximately 1.7kms of new dual carriageway and 2kms of single carriageway, together with a 1.2kms of single carriageway link road from the bypass to Sallins town centre.

The project will include six new structures, including two bridges over the River Liffey, a bridge over the Grand Canal, the new Osberstown Interchange bridge over the M7 motorway and a minor road bridge carrying Osberstown Road over the Sallins Bypass. The Sallins Bypass bridge under the main Dublin Cork railway line is currently being constructed by Irish Rail in a parallel project. 

Traffic management will be in place during construction along the M7 from junction 9 Naas North to junction 11 M7/M9 at various phases during the term of construction.

Two lanes of traffic will be maintained at all times between 6am and 10pm.  For the duration of active construction works there will be a special speed limit of 60kph in place. And an emergency lane will be available through the works at all times.

In the analysis of some, improvements to traffic flow along the M7 corridor offers regional and national benefits by enhancing safety and reducing traffic delays for all road users travelling to and from Dublin, Waterford, Cork and Limerick.

Kildare County Council CEO Peter Carey has welcomed the work saying it would “not only underpin economic recovery in this country, but also represent a tremendous investment in our local economy, improving the attractiveness of Kildare as a location for business and tourism opportunities”.


Read more: Think the M7 widening project will ease Kildare's traffic? Don't believe the hype

Read more: Two year time frame for M7 Naas to Newbridge upgrade


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