Haydn has 30 years’ experience in civil and structural engineering design including mine access linings and support structures, underground specialist structures for housing sensitive equipment and tunnels and drifts designed in sprayed concrete linings often in poor ground conditions and under special loading conditions. Responsible for the design delivery of large international mining projects, Haydn has gained experience of evaluating onerous ground conditions and the rehabilitation of mine linings, tunnels and other underground structures. Haydn is a UK Chartered Engineer and holds Canadian Professional Engineer status.