PROJECT INFORMATION SHEET

PROJECT INTRODUCTION IRM Oosterscheldekering The Oosterscheldekering (English: Eastern Scheldt storm surge barrier), between the islands Schouwen-Duiveland and Noord- Beveland, is the largest of the thirteen ambitious Delta Works series of dams and storm surge barriers, designed to protect the Netherlands from flooding from the North Sea. Vriens Diving (former DCN) was one of the contractors who helped with the construction of the barrier (click here). The barrier requires high maintenance, and the area is challenging due to its high water currents. DCN was contracted from 2013 until now for the inspection, repair and maintenance of the barrier. Discipline Inspection Repair & Maintenance (IRM) Clients OUR EXPERTISE Van der Velde, Van der Heide, Rijkswaterstaat Air and Sat Diving

Hyperbaric / Wet Welding

DCN AT A GLANCE

ROV Operations

DSV Supply

OPERATIONS CERTIFICATION HSE PEOPLE Subsea Engineering Worldwide with a focus on ISO 9001 – 2015, Strong dedication on ZERO 90 FTE’s including 32 North Sea, WAF, UAE and SE ISO 14001 – 2015, harm to people and supervisor / divers. Asia. ISO 45001:2018. environment. Flexible group of core Offices in the Netherlands SCC / VCA** LTIFR- 0 (IMCA 0,42) freelance personnel. (headquarters), UK, Germany, FPAL (Verified) TRIR – 0,72 (IMCA 1,67) Focus on inhouse Abu Dhabi and Kuala Lumpur. IMCA FAR – 0 (IMCA 0,93) development, knowledge Subsea NDT IRM Bases in the Netherlands, Abu In-water Survey Certification Env. 5L – 0 (IMCA N/A) sharing / training / lessons Dhabi and Singapore. learned.

Creating Dry Space UW

[email protected] www.dcndiving.com Underwater Concreting SCOPE OF WORK The scope is, but not limited to the following elements:

PROJECT • Development of Diving HSE IRM and operational Procedures Oosterscheldekering • Managing permit to work systems LOCATION • Inspection, including Ultra Oostercheldekering, Thickness measurements and Netherlands Cathodic Protection Measurements WATER DEPTH • Sensor measurements and Ranging from 5 - 28 replacements. meters • General Visual Inspections • Subsea Concrete Repairs PROJECT DURATION • Marine growth removal with 2013 - till date H.P. Waterjettting • IRM on anchor piles used for VESSEL & System major construction vessels to Mobile Dive Van, anchor on (e.g. for SCUBA Replacement installation of large and Unit on dive boat heavy prefab elements onto (Hudson), Dive the barrier). Support Vessel • Salvage of sunken objects (Survey Boat) with near the area. mobilized Air Dive • Final Reporting to the client. Spread

PROJECT ACHIEVEMENTS ✓ ZERO LOST TIME INJURIES ✓ NO ENVIRONMENTAL SPILLS ✓ WORKING IN CHALLANGING CONDITIONS WITH A HIGH SAFETY PERFORMANCE ✓ SPECIALIZED TRAINED PERSONNEL TO OPERATE AND WORK IN THE AREA ✓ SATISFIED CLIENTS