The first retaining wall using the principle of anchored earth was constructed in 1984 on the A660 Otley bypass in West Yorkshire. The retaining wall is 86 m long with a maximum height of 6 m: in addition to supporting a small road embankment, the wall also acts as an abutment for a pedestrian footbridge. This report describes the general principles of anchored earth together with a design method and construction procedures used at Otley. The instrumentation installed to monitor the behaviour of the wall is also described and the results obtained are analysed and discussed in the context of the design method. (A)

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