Diver and ROV based concrete mattress handling, deployment, installation, repositioning and decommissioning

December 2023 – Rev. 1.1 – Quality check; headers, footers, figures & document map updated; no change to content

September 2011 – Rev. 1 – Updated to include reference to the use of ROVs in mattress handling

November 2007 – Initial publication

Contents
  • Introduction
  • Glossary
  • Purpose of this Guidance Note
  • Safety and Environmental Issues
  • Equipment
  • Specification, Design and Fabrication of Concrete Mattresses
  • Handling, Deployment, Installation, Repositioning and Decommissioning
  • Anti-Scour and Fronded Mattresses
  • References
  • Appendix 1 – Tick-Box Checklists
  • Appendix 2 – Example Drawings
Reference(s): IMCA LR003, IMCA R016, IMCA D042
Published:December 2023
Version:Rev. 1.1
Grade:IMCA Recommended Practice
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