Demolition Sequencing, Propping & Temporary Works Design
The Churchill Way flyovers were a pair of dual carriageway flyovers that connected Lime Street to Dale Street and Tithebarn Street in central Liverpool. They opened in 1970 and were designed to form part of the city’s cancelled inner ring road scheme. The flyovers were closed in September 2018 due to structural issues related to the post-tensioning and the decision was made to demolish them.
The inner-city location of the flyovers and the small site area meant that the demolition sequence had to be highly choreographed to overcome the logistical challenges that this created. The flyovers were removed by cutting the structure into span length sections and using SPMTs to move them to a central processing compound. The spans were lowered onto steel grillages before cutting them into sections to be hauled offsite on low loaders. The four most eastern spans of the North and South flyovers were demolished using more traditional demolition techniques with the spans being processed by excavators equipped with shears and munchers.