N17 N18 Gort To Tuam PPP Scheme
28th September
28th September

The N17 N18 Gort To Tuam PPP Scheme was separated into 3 sections, North, Middle and South.

Roadstone is delighted to see the opening of the new M17/M18, having supplied and laid 1 Million squared metres of blacktop to the job over the last 2 years.

Roadstone won the contract to lay CBGM, Base, Binder and Wearing Course on both the North and Middle sections including all side roads on the Tuam By-Pass and Rathmorrissy interchange.


Rathmorrissy Interchange is the largest on the contract linking M6 Galway to Dublin motorway and M17/M18 Gort to Tuam motorway. The roundabout itself is almost 1 km in circumference and was a very complicated and challenging aspect to the contract.

Annagh Hill interchange is located at Annagh hill on N63. The interchange consists  4 roundabouts and approximately 4km of a road network.


Safe T Certification award

In November 2016 Roadstone Contracts was awarded the highest Safe T rating possible. The audit was carried out on this project, and is a testament to the team working on the project.


Contract in Numbers

Official opening Date                                      27th September 2017 (5 months early)

Contract duration                                            2 years


Tuam By-Pass                                                   4.1km

N17/N18 mainline                                           30km

Rathmorrissy circulatory carriageway        1km

Rathmorrissy slip roads (12no.)                    9km

Annagh Hill Interchange                                4 roundabouts including 4km road network

Side Roads                                                         25



  • Communication is key
  • Advanced planning and programming is vital
  • Dealing with issues quickly and effectively builds confidence
  • Quality and quality control are a key part of any large contract