Letter relating to initial briefing to discuss proposed report preparation relating to 'one of our current contracts' (Daly and Naughton Ltd), 13 April 1978, with handwritten annotations relating to 'causes of tunnel difficulties'; plans showing geological sections and site investigation bore-holes relating to weathering in tunnel drives, 1983; British Geological Survey test data sheets concerning grading of tunnel spoil, J.F. Donelon [and Co. Ltd], n.d. It is unclear which project either of these three separate sets of documents relate to, they have been placed in the Other British Construction Projects section as the most likely section.
Miscellaneous: Tunnel Documents
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- ReferenceGB 133 PWR/4/2/7/92
- Dates of Creation1978-1983
- Physical Description2 folders.