Critical Projects Delivered

The projects clients describe as impossible are rarely technically impossible. They are constrained: by permissions across several authorities, by protected ground where excavation must be justified rather than requested, by live plant that cannot be shut down, or by a window too short for a conventional programme. What makes them deliverable is usually sequencing and honesty about the constraint rather than any unusual technique.

The four constraints we see repeatedly

Multi-authority corridors, where a route touches four or five bodies and any one of them can hold the whole thing — resolved by mapping jurisdiction first and opening the long-lead files ahead of the corridors they serve. Protected and heritage ground, where non-destructive survey becomes part of the permission case rather than an input to construction. Live plant and operating environments, where the operator's permit and shutdown calendar govern rather than ours. And compressed windows, where the answer is sequencing rather than adding crews.

What we decline, and why saying so matters

Work where a client will not permit a survey before a fixed-price bore, because that transfers ground risk to whoever discovers it first and the argument afterwards is worse than the lost job. Programmes where the stated timeline cannot survive the permission process, unless the client accepts that in writing at the outset. And scopes where sub-letting a critical activity would be the only way to meet the date. A contractor who never declines anything is not being selective; they are managing the difference through variations after award.

Beyond the basics

What makes a project genuinely hard? Constraints rather than technique — multiple authorities, protected ground, live plant or a compressed window. Sequencing usually solves more than equipment does.

Do you decline work? Yes. Fixed-price bores without a survey, timelines that cannot survive the permission process, and scopes needing critical activity sub-let.

How do you handle protected ground? Non-destructive survey first, prepared as part of the permission case rather than as an input to construction, because that is what the reviewer assesses.

What about live plant? We work to the operator's permit, escort and shutdown calendar rather than expecting an exception, and programme around scheduled windows.

Why does declining work matter to a client? Because a contractor who accepts everything is planning to recover the difference through variations. A stated boundary is the more reliable signal.

Terms used on this page

Long-lead file — a permission with a lead time long enough to govern the whole programme. Non-destructive survey — investigation without opening the ground, usually required in protected areas. Shutdown calendar — an operator's planned production stoppages, the practical windows for in-plant work. Ground risk transfer — shifting the consequence of unknown ground onto whichever party discovers it. Sequencing — ordering activities so constrained items start early enough not to hold the rest.