This is a research paper focused on assessing experienced project managers/senior engineer’s perceptions of managing various project issues relating to a proposed underground radioactive waste storage DGF project in the UK. This empirical inquiry utilised an interpretive perspective. The scope for this research were project managers/senior engineers who were registered Chartered Engineers and experienced in managing deep civil engineering projects. The discrete population for this study was made up of individual managers/senior engineer’s (19) presently located on multiple, independent sites, and a total of 11 managers/senior engineers were determined as the resultant sample frame. The outcomes consisted of six (6) main themes, namely: Managerial, Technical Capability, Process, Costs, Project Administration, and Environmental Issues; and twenty (20) sub-themes raised from a literature embedded question. Very little management research, if any, has been conducted in this extremely provocative area and the paper exposes profound concerns relating to aspects of the management, which is academically unexplored in today’s demanding international nuclear civil engineering environment.