UXO advice Sand Extraction – Dutch Coast

NjordIC regularly carries out specialised consultancy assignments for a leading contractor concerning multiple sand extraction areas along the Dutch coast. These assignments focus on identifying potential risks related to explosive ordnance at sea and providing advice on the safe and efficient execution of sand extraction activities.

Our assessment includes:

• Comparing the current seabed level with the non-mobile (stable) seabed;
• Evaluating the types of explosive ordnance potentially present based on historical analysis;
• Analysing seabed morphology and sand wave dynamics;
• Reviewing the equipment to be used, including detection technologies;
• Assessing water depths;
• Assessing the operational scope of the trailing suction hopper dredgers.

Based on these factors, NjordIC delivers a detailed risk analysis with actionable advice on whether UXO detection is required, and if so, how it can be implemented in the most pragmatic and safe manner.

This enables sand extraction to proceed with full awareness of subsurface risks, in compliance with operational constraints.