MMT to scan German waters for unexploded munitions

GERMANY: Swedish marine survey company MMT has been chosen by TenneT to search and clear unexploded ordnance in the German North Sea.

MMT's Triad vessel will carry out the work
MMT's Triad vessel will carry out the work

The contract for clearance work is to enable TenneT to lay the electrical connections to offshore wind farms in the German waters in eastern North Sea.

An unexploded ordnance threat was identified in a risk assessment for the Helwin 2 platform and high-voltage alternating-current (HVAC) cable routes related to it and as such a geophysical survey is required for all cable routes.

The Helwin 2 platform will serve the cluster of wind farms being developed around Heligoland, including Amrumbank West and Nordsee Ost.

The area will be surveyed using a magnetometer array and will be conducted from the MMT survey vessel Triad.

The survey will be followed by identification and removal or detonation in the final quarter of 2013 and the first quarter of 2014.

Tennet experienced costly delays earlier this year when the laying of cable link for the Riffgat wind farm, also in the German North Sea. It was held up due to the discovery of large amounts of unexploded munitions on the seabed.

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