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Unexploded Ordnance Clearance

Baltic Sea Unexploded Ordnance

Project Overview

The Nord Stream Project consists of twin 48” pipelines passing through the Gulf of Finland and the Baltic Sea from North of St. Petersburg (Russia) to Griefswald in Germany, each approximately 1200km in length.  The pipeline routes pass through the territorial waters of Russia, Denmark and Germany, and through the exclusive economic zones (EEZ) of those countries as well as Finland and Sweden.

Areas of the Gulf of Finland and the Baltic Sea were heavily mined during World War I and World War II and numerous unexploded mines were encountered during the design surveys for the Nord Stream pipelines.

During 2009 and 2010 approximately 50 items of unexploded ordnance (i.e. sea mines, air dropped bombs, etc) were cleared from the route by demolition in-situ.  A feature of the operation was some very strict environmental monitoring requirements imposed by the permitting authorities in Finland.

Scope of Services

One of Consub’s directors worked exclusively with Nord Stream to coordinate and manage the clearance of unexploded ordnance along the pipeline routes.

The services provided by Consub included:

  • Technical and commercial review of the tenders for munitions clearance, including contract negotiation and award;
  • Attendance at interface meetings with third parties (i.e. national maritime authorities, etc);
  • Oversight of procedure preparation by the specialist clearance contractor;
  • Attendance at proving trials for demolition charges;
  • Oversight of vessel mobilisation and offshore operations;

Inspection, evaluation and recommendation of alternative vessel and ROV suppliers (for 2010).


For more details contact Malcolm Blackmore.