REFURBISHMENT OF JUBILEE BRIDGE ASHTON-UNDER-LYNE, TAMESIDE, GREATER MANCHESTER Innovative strengthening project involving the installation of 14 Nº 1m wide 7.4m span Macrete pre-cast concrete 'flexi-arch units' underneath the existing bridge, filling the void between the ex structure and the arch with mass light-weight concrete, making the existing structure redundant. The arch was jacked, unit by unit, along reinforced in-situ concrete ab

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