UXO Identification and Removal for 50 Hertz Offshore GmbH

Description

Unexploded Explosive Ordnance (UXO) survey, identification and removal on the cable route of the Ostwind 3 project in the German sector of the Baltic Sea. Includes but not limited to: Provision and operation of all assets necessary for the works, Identification of targets, removal of non UXO, Reporting and interfacing with employer and UXO expert. Lot 1: The project works consists in the identification and removal within the offshore site North-East of the island of Rügen close to the existing wind farms Arkona Becken and Wikinger. The objective of the UXO survey and ID and Clearance campaign is to mitigate the risk of Unexploded Ordnance (UXO) present in the cable installation corridor(s) to ensure a safe installation of the Ostwind 3 export cable(s) and offshore substation, including all route clearance and route preparation activities as for example boulder clearance, Pre-Lay Grapnel run, dredging and anchoring. The scope of the UXO survey and ID and Clearance campaign consists of 2 phases: Phase 1: — high resolution bathymetry, acquired with multibeam echosounder (MBES) equipment; — sea bottom imagery, acquired with side-scan sonar (SSS) equipment; — magneto metric survey data, acquired with underwater magnetometer detection equipment; — electromagnetic survey, acquired with underwater electromagnetic detection equipment; — analysis and interpretation of all the acquired data; — provision of an Master Target List (MTL). Phase 2: — UXO inspection, Identification and removal/detonation were required.