Clifton Suspension Bridge
Glanville was appointed by the Bridge Trustees to provide specialist mapping of 12 previously undiscovered chambers within the Leigh Woods abutment of the Clifton Suspension Bridge, Bristol. Isambard Kingdom Brunel’s bridge has been standing since the 1830s but the abutment had always been assumed as a solid structure until an access shaft was discovered during re-surfacing works.
Surveyors and their equipment had to be transferred down a 15 metre deep, 1 metre diameter shaft to access the two levels of chambers. Glanville provided a specific method statement, to enable confined spaces trained surveyors to work safely in cramped conditions. Each of the 12 chambers was fully detailed using reflectorless Total Station equipment and we produced a 3-dimensional model of all surveyed features.