Greystones Harbour Development

Greystones Harbour Development

Contract Value: €3,500,000
Consulting Engineer: Arup
Engineer's Representative: Mr Steve McCormack - 00353 12870927
Client: Sisk / Lagan JV
Client's Representative: Seamus Sorohan (Sisk - 00353 866067281), John Cunningham (Lagan - 07767 393307)
Works Completion Date: February 2011

Scope of the Works:

The Greystones Harbour redevelopment is one of the largest and most challenging civil engineering contracts undertaken in Ireland and is part of an overall €300m regeneration of the foreshore. Ashleigh Contracts carried out the following areas of works on this prestigious contract:- 

  • Placement of approx. 60,000T of 3T to 6T Rock Armour forming the core of the revetment protection of the new 300m long North and 150m long South Breakwaters.  
  • Placement of approx. 3,500No 14T precast concrete Antifer Units placed in a double layer on the rock armour core of the North and South Breakwaters. These units were placed using an 85T Excavator fitted with a specially fabricated full-slew hydraulic grab placing units against the Toe mound and on the main slopes forming the primary protection to the new Breakwaters.
  • Construction of an 80m North Groyne comprising a core of 1T to 3T armour with seaward protection provided by 19,000T of 6T to 10T rock armour.
  • Construction of the Marina Quay Revetment formed from 50,000T of core material with slope protection within the proposed marine provided by 1T to 3T Armour
  • Dredging works and final trimming of the main harbour dredge areas carried out from both tidal land based Long Reach excavators and from our modular spudleg pontoon Barge.
  • Coastal defence works associated with rock armoured beach protection areas to the north of the main Harbour.
  • Placement of 3T to 6T Rock Armour as scour protection around the roundheads of the two main breakwaters – placed using our own spudleg Barge and 75T long reach excavator (25m reach capability).
  • Infilling and compaction of Reclamation areas with approx. 185,000m3 of dredge material and sand retrieved from on-site borrow pits.

Areas of Expertise