O’Connor Sutton Cronin were appointed by Kildare County Council to deliver the Coghlanstown Slope Stabilization Scheme from Preliminary Design through to Handover including Part VIII and Environmental Assessments.

The local road L6047 was showing signs of structural failure at a number of locations over a distance of approximately 1km. Significant slope failure had occurred along the northern river bank of the River Liffey, south of the local road L6047 which meant the road had been closed since August 2016.

• The Scheme included the requirement to complete a temporary diversion of the River Liffey in order to excavate the section of failed embankment.
• Construction of a more stable slope at a height of approx. 20.0m from road level to the bottom of embankment.
• Structural reinforcement in the form of a triaxle geogrid and the construction of a 2:1 slope.
• Following the construction of the new embankment the River Liffey was diverted into a new permanent alignment which required continual liaison with Inland Fisheries Ireland (IFI) and National Parks and Wildlife Services (NPWS).

OCSC were appointed as design consultants, PSDP, Employer’s Representative and Site Supervision.