The annual James Sutherland history lecture shares exceptional work on the history of structural engineering. The 2025 lecture was given by Professor Dr Stefan Holzer and explored the role of temporary works in the 13th–19th centuries.
Temporary works, such as scaffolding, lifting gear, and centring for arches and vaults—played an essential role in the execution of historic structures. However, as they rarely left behind clear traces, reconstructing their use requires a combination of building analysis, archival research, pictorial evidence, and early technical literature.
Professor Dr Stefan Holzer highlighted how temporary works not only provided access to worksites but also facilitated material transport and influenced structural designs. Understanding these historical construction procedures offers valuable insights for engineers involved in rehabilitation works.