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Clapham Junction - Embankment Works - Emergency Escape Stairs

Network Rail identified a requirement to provide an Emergency Escape Stair to Platform 17 of Clapham Junction Station. Due to site limitations only one viable route was identified down an existing embankment which was providing support to operational permanent way. Deltaline Design developed and specified a full temporary and final works solution including the installation of two sacrificial pre-fabricated trench box caissons installed during traffic hours providing full support to the adjacent operational permanent way. Following installation of the trench box system a reinforced concrete retaining wall and stair structure was detailed and installed. Both the temporary and Permanent works were installed as detailed to programme without complications or amendment.