STORNOWAY DEEP WATER PORT

PROJECT DESCRIPTION

Multi-purpose deepwater port, comprising main berth with minimum 10m water depth; linkspan berth with minimum 8m water depth; 6 hectares of laydown area; link road to nearby fabrication facility; heavy duty dolphin to extend main berth; mooring buoys to serve the longest vessels (up to 400m).

Client – Stornoway Port Authority 

Completion – 2023/4

Value – £65 million

AREAS OF RESPONSIBILITY

Concept design; ground investigation; boreholes; layout design balancing volume of reclamation material with dredged seabed deposits and blasted rock in forming accesses; obtaining marine consents; environmental management; obtaining tenders; project management; site supervision.

PRINCIPAL ELEMENTS

  • Main quay 200m

  • Linkspan quay 140m

  • Blasted rock in reclamation 850,000t

  • Dredged material in reclamation 900,000t

  • Steel piling and fabrications 11,000t
  • Concrete capping units 400m³
  • Concrete in dolphin cap and ground slabs, bases 1,500m³
  • Linkspan for freight ferry 250t capacity
  • Services – electricity, water, CCTV, internet
  • Welfare cabin with services and controls
  • Heavy duty fendering and bollards
  • Removal of two shipwrecks from seabed

KEY FEATURES

Economical use of dredged material and rock blasted to make access road and link road in forming reclamation thus minimising transport emissions; will accommodate the largest  cruise ships currently operating, and all renewables delivery vessels; will serve a new dedicated freight ferry, allowing extra car ferry crossings;  will facilitate future relocation of oil depot out of town centre; will provide deep water access for large scale projects at adjacent Arnish fabrication facility; innovative removal of shipwreck, working from the surface.

CONTRACTORS

Project Manager – Wallace Stone

Main Contractor – MacLaughlin  & Harvey

Earthworks subcontractor – Breedons

Blasting subcontractor – BAM Ritchies

Dredging subcontractor – Boskalis

Marine Plant subcontractor – Leask Marine

Wreck removal subcontractor – Leask Marine

Environmental management – Affric Environmental

CP – Ocean Kinetics/Corrosion Prevention