Digital Photograph: Earthquake damage to a retaining wall, Lyttelton

Michael Davies
Production date
30 Jun 2011
One landscape colour digital photograph taken on 30 June 2011 showing earthquake damage to a section of retaining wall in Sumner Road. Plastic sheeting installed to stabilise previous damage and protect from water erosion is visible to the right of the photograph. Also visible in the photograph is a boarded up broken window and temporary safety fencing.
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Many of Lyttelton's retaining walls sustained earthquake damage and the process of rebuilding those owned by the Christchurch City Council is being managed by the Stronger Christchurch Infrastructure Rebuild Team (SCIRT). Work on the town’s retaining walls is expected to take until 2015 to complete with the replacement walls designed to withstand future earthquakes. One of the engineering features being incorporated is the use of ground anchors to tie the wall to the slope behind by drilling horizontally into the hillside then filling the hole with reinforcing and a cement grout which is then secured to the wall.
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