M7 Widening Scheme
Update - May 17th, 2018


M7 Mainline: Widening 2x2 lane to 2x3 lane

For workers and users safety, temporary safety barriers are in place from Junction 7 (Johnstown) to Junction 10 (M7 Business Park) in the central part of the Motorway.

Works in progress for that specific phase are:

Top soil stripping (removal of existing top soil)
 Drainage (construction and connection to existing network to collect water from the road for treatment)

Fencing is in progress on each side of the motorway.


Osbertown Interchange: Built a new interchange

A new Interchange is created, earthworks are in progress in order to build new access ramps on each side of the M7 motorway


Before demolition of the existing bridge over the M7, a new bridge (S1) is built. At this stage deep foundations made by concrete piles are in construction with help of a driller now placed in the central part of the M7

Sallins Bypass: Built a new 3.5km 2x1 lane road

This section will integrate 4 new bridges: including 2 over river Liffey, and one over Grand Canal. Fencing and soil striping are nearly done on this section, drainage works are in progress.

To ensure access of heavy site engine to the construction site form Clane roundabout and minimize traffic through Sallins, the construction of a temporary bridge over Liffey will start soon.


M7 Widening Scheme
Update – December 4th 2017.

Following Contract Award in late September, the SIAC Colas JV along with Atkins, the Client’s Representatives have mobilised on Site with Design development the primary focus. The Contractor’s Design team, AECOM are currently developing Alignment, drainage amongst other elements of the Works and progressing thru the approval stages with the Client’s team.

Currently Works have commenced near Osberstown, adjacent to the M7 Motorway, with earthwork
Operations progressing.

Ecology: As part of the process and in particular where new projects of this nature cross green field sites, the Contractor is required to consult with various government bodies, including the OPW, Fisheries etc… An Ecology survey was carried out, with mitigation measures developed where necessary.

At this stage, the focus is on preparing the Design and necessary approvals and consultations, to allow construction activities to commence in earnest, in the New Year.
Earthwork operations in progress for the proposed Sallins Link Rd junction, at Osberstown.