One of the UK’s largest retaining structures installed on Sunderland strategic transport corridor
Esh Construction, Aarsleff Ground Engineering, and Sunderland City Council have worked in collaboration to deliver 500 metres of retaining structures on the multimillion-pound Sunderland Strategic Transport Corridor, making it one of the largest retaining structures in the UK.
In just over 12 months, one of the UK’s largest soil nail walls, a large king post retaining wall and two further reinforced concrete retaining walls, have been installed in a major engineering feat on Phase 3 of the Sunderland Strategic Transport Corridor (SSTC3).
The £40m SSTC3 project – which is being delivered by Esh Construction’s civil engineering division, Esh Civils, on behalf of Sunderland City Council – will create a new 2.5km uninterrupted dual carriageway link to the Northern Spire bridge and the city centre.
SSTC3 begins at the southern end of the Northern Spire and continues through the former Pallion Shipyard, underneath the Queen Alexandra Bridge, into Deptford Terrace and onto the city centre. The retaining structures were necessary to create space for the highway between the former Pallion Shipyard and the upper existing highway and Tyne & Wear Metro line, given a height difference of 20 metres separated the bordering land.
The largest of the new structures is the soil nail wall which was introduced as a result of a value engineering activity, providing time and cost savings for all parties.
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