Colluvium soil of sand soil with rock blocks.
The slope at the western portal of the Sendall tunnel was affected by rockfall events, which represented a high risk for pedestrians and motorists travelling daily in the touristy port area of St. George. At the top of the embankment there is also a Presbyterian church from the XIXth century, which has been restored for its historical and touristical significance.
The designer decided to install high tensile TECCO® G65/3 mesh as a drape due to it's unique features, low maintenance requirements and corrosion protection.
As a direction protection of the Presbyterian Church, ca. 20 meters long retaining wall was constructed just below, along its western boundry.
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