Project Manager on Tranche 1C project.  Approximately £11m worth of work on major civils taxiway renewal / replacement airfield at Heathrow.  This project had complex logistical challenges of creating a construction site in an area of the airoprt on a security boundary line blocking access to BA maintenance areas.  The first phase of the project involved construction of a new temporary taxiway through an existing grass area to provide an aircraft diversion route.