Ground investigation

On any major roads scheme, undertaking ground investigation work is an essential part of informing the scheme design.

Ensuring that there is a comprehensive understanding of the ground conditions is of paramount importance at the Rest and Be Thankful.

The project team have reviewed a vast array of historic data from Glen Croe and have been liaising closely with the Trunk Road Operating Company on the ongoing monitoring and investigations.

To supplement this, more detailed, intrusive ground investigation works for both the MTS and LTS are being undertaken. The LTS ground investigation works will require temporary traffic management on the A83 to safely complete parts of the works in close proximity to the road.

The outcomes from the site investigations will assist with the ongoing design work. These include providing further information and data on ground

conditions, soil characteristics, geotechnical hazards and the surface water and groundwater regime.

Drone Surveys

In addition to the ground investigation intrusive surveys, the project team have also undertaken innovative drone surveys.

The drone surveys covered an extensive area within Glen Croe and repeat surveys will assist with monitoring the Beinn Luibhean slopes and watercourses adjacent to the A83 to inform the design development of the LTS.