A seabed survey was conducted in 2007 to assess iceberg scour and seabed conditions at Cape Harrison, which was identified in the 1980s as a potential landfall for a pipeline from the Bjarni/North Bjarni sites on Makkovik Bank. Analyses of the data indicate there are bedrock outcrops that may pose a challenge for pipeline routing. Sub-bottom profiles reveal pockets of acoustically transparent, weakly to strongly stratified channel sediments (often ≥ 20 m thickness) that are interpreted as soft, low shear strength silty mud or muddy sand. Iceberg scour rates were estimated using seabed scour density and the required pipeline cover depth corresponding to a 1,000 year return period for direct iceberg keel/pipeline contact was calculated.

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