Structural Investigation on Temple Footpath Bridge

Site investigation was carried out in two phases of work. Phase 1 included the investigation of the decking, hand rails and upper longitudinal and cross-beams via micro/resistance drilling and deep moisture content investigation as well as microscope analysis of timber samples taken for species identification. Phase 2 included a more technically challenging investigation of the bridge’s lower structural framework. This was conducted via the removal of decking boards and the lowering of H+R team members down beneath the bridge on a mechanical winch-based gantry system. Once down below a thorough examination of the previously inaccessible structure could be carried out.

H+R discovered during our investigatory works widespread decay to the hardwood decking boards as well as small pockets of decay to the hand rail structures creating a health and safety risk. These were then swiftly dealt with by the Environment Agency. No significant timber decay was detected to the bridge main structural elements; however, some structural movement/settlement and deflection of the bridge’s longitudinal beams and its in-built compression pads were noted and this information was passed to the team of Structural Engineers to be acted upon.