Based on previous exploratory work, we anticipated and subsequently found many uncharted buried services and features, including redundant 11kv cables, asbestos contamination and redundant concrete foundations blocking the drainage route. Using our proven safe excavation techniques, including vacuum excavation, we safely excavated the services trenches. The project was located on one of the main operational traffic routes through the Sellafield site, which had to be reopened as quickly as possible to maintain site operations. We worked with our client Morgan Sindall and Sellafield Ltd operating departments to establish traffic management diversions and to coordinate the work daily. By working 24/7 on this project, it was successfully completed 1 week ahead of schedule, meaning that our client met their KPI milestone.