We owe our reputation in the tunnelling world to the quality of our staff. We have over 150 tunnel engineers and technicians – working around the globe designing thousands of kilometres of tunnels every year, ranging from immersed tubes to hard rock TBM driven bores. Many are recognised authorities in their particular fields of tunnelling.

This brief resume highlights some of our key personnel, illustrating the range of experience and talents we offer in Mott MacDonald.

David Gutteridge joined the company in 2003 and now manages our 100 strong Tunnels group. He is well known throughout the tunnelling industry, both in the UK and Asia Pacific, having worked on the development of metro projects in Singapore, Hong Kong and Taipei. David is a member of the British Standards Committee for trenchless techniques, a council member of CIRIA and chairman of its Core Programme Management Committee, a member of the steering group for CIRIA projects ‘Foresight in Construction’ and ‘Knowledge Management’, an assessor for the EFQM Excellence Model and a former committee member of the British Tunnelling Society. He is currently the project director for Mott MacDonald’s leading role on London’s Crossrail project.

Arthur Darby is our Tunnels Practice Manager responsible for developing our tunnelling skills and seeing that they are applied to the maximum benefit of our clients across Europe, Asia and Africa. He joined Mott MacDonald in 1987 and has over 30 years experience in the design and construction of large infrastructure projects including the Channel Tunnel and the Lesotho Highlands Water Project. He is currently involved on the SMART project in Malaysia and all the tunnelling works for the Terminal 5 development at Heathrow Airport. Arthur has wide-ranging technical expertise in the design of major tunnels and caverns constructed by TBM and NATM, and has developed a broad perspective of design and construction management, procurement processes, and dispute resolution as a result of participating in owner’s, concessionaire’s, contractor’s and partnering teams.

David Powell leads the business development activities for our tunnels team in Croydon. He has worked extensively on hydroelectric, road and rail tunnel projects in the UK and Europe, India, North America and Hong Kong. David has world-wide experience in designing tunnels and large span caverns in all types of soft ground and hard rock, and is acknowledged as an international expert in the design and implementation of sprayed concrete linings and in the sequential excavation method, authoring many papers on the subject at international conferences and in leading publications. He has led Mott MacDonald’s efforts in successfully pioneering the use of this form of tunnel construction in soft ground, both in the UK for the Heathrow Express project and in the USA for the San Diego light rail transit project.

Tony Rock has 30 years experience of design of soft and hard ground rock tunnels for road and rail transport systems and the design of non ballasted track support in tunnels. Tony designed sprayed concrete tunnel linings for Channel Tunnel at Shakespeare Cliff, segmental cast iron and concrete linings on Heathrow Airport and Jubilee Line Extension. He designed the first trapezoidal segment lining in the UK for Balfour Beatty on the Avon Conveyor tunnel and the first steel fibre reinforced concrete segments for Miller Tunnelling on Heathrow Airport terminal 1 to terminal 4 baggage transfer tunnel. Tony was Rail and Tunnels delivery team leader for the planning and design phases of the Terminal 5 project on Heathrow airport including some 4km of light rail, 4km of heavy rail, 3km of road and 6km of storm water Tunnel Boring Machine (TBM) constructed tunnels. Tony has published a number of technical papers on tunnel lining design including fire life safety issues. Tony is secretary of PIARC Road Tunnels Committee 3.3 Working Group No 4 with focus on road tunnel safety issues

Tony Deane worked for several years as a designer for contractors before joining Mott MacDonald in 1986. This background gives Tony extensive experience of the planning, design and construction of heavy civil engineering works including railways and tunnels, bridges, maritime structures and deep piled foundations. His major projects in the last ten years have included London's CrossRail project, the Heathrow Terminal 5 Project, Taiwan High Speed Rail Scheme, San Diego Light Rail, Heathrow Express Rail Link, and the St Clair River Rail Tunnel in Canada. Tony specialises in the design of tunnel linings and is an authority on the use of NATM in soft ground in the UK – a subject on which he has written several papers. Tony was a committee member of the British Tunnelling Society from 2000 to 2003.

Gareth Mainwaring joined Mott MacDonald in 1986 and has been involved with the design and planning of numerous subaqueous tunnel projects, such as the Channel Tunnel, Boston Harbour clean-up project in the USA, Hong Kong Strategic Sewage Disposal Scheme, Medway Tunnel in the UK, Tuas cable tunnel in Singapore and the New York Cross Harbour Tunnel. These projects have been constructed using both bored and immersed tunnelling techniques and Gareth now leads Mott MacDonald’s immersed tube tunnels team. He has specialist experience in the design and construction of this form of tunnelling from projects in Europe, Asia and North America, and has authored many papers on the subject. Gareth also has world-wide experience of bored tunnelling projects for highways, railways, water and utilities.

Douglas Rutherford joined Mott MacDonald in 1988 following several years work in railway electrification and traffic management. From this base he has developed particular expertise in underground station planning. Douglas has been involved with numerous transport projects including Metro do Recife, Heathrow Express, Jubilee Line Extension, Crossrail, Toronto Subway, Metro do Porto, Budapest Metro, Kaohsiung MRT and Dublin Interconnector. He has extensive project experience of large multi-skilled teams including managing inputs from specialist railway systems such as rolling stock, ventilation and depots. His work has permitted the development of a thorough understanding of the environmental issues associated with major projects in urban areas, and he has been responsible for the production of codes and specifications for control of environmental impact. He also advises the tunnels team on railway safety issues.

Jim Beveridge leads our foundations and geotechnics team with over 25 years experience of geotechnical engineering assessment and design for major infrastructure and transportation projects. Jim’s particular area of expertise is rock mechanics and underground space design. He has also authored a number of papers for international conferences on the design and implementation of NATM in soft ground conditions. Jim’s projects have included the large span excavation for the UK cross-over cavern on the Channel Tunnel and for the Heathrow Express project, the cavern excavation at the ‘Muela hydropower project in Lesotho and the inspection and maintenance of caverns and tunnels in Gibraltar.

Randy Essex is executive vice president and director of tunnelling with Hatch Mott MacDonald. He has been involved with the planning, design and construction engineering of more than 140 tunnel projects including highway, transit, railroad, water, wastewater and rehabilitation applications. His experience encompasses projects located in 26 states across the US as well as Canada, Guatemala, Puerto Rico, Mexico, New Zealand, Singapore, Peru, Indonesia and Australia. His expertise includes tunnels, shafts and chambers in soft ground, hard rock and mixed face conditions. He has authored more than 40 technical papers and articles, is principal author of the 1997 American Society of Civil Engineers' publication Geotechnical Baseline Reports for Underground Construction, and served as chairman of the Underground Technology Research Council.

Derek Winsor is a principal member of the foundation engineering group in Croydon, UK with a wide range of experience in the design of highway, metro and rail system structures, cut-and-cover tunnels and other vertically retained buried structures including specialist diaphragm wall and piling techniques. Derek has developed specialist expertise in the design of jacked tunnel structures and water-resisting concrete design in the UK, Asia Pacific and USA, where he helped develop the award-winning concepts for the Boston Central Artery tunnel project. Most recently Derek has been the project director leading the design of contract MC1B of India’s Delhi Metro Line 2 – which entails the construction of approximately 6.6km of underground tunnel incorporating six underground stations. He is currently Project Manager of our design development contract for the Central London - East section of the CrossRail project.

Alan West manages our mechanical, electrical and simulation section which designs all the mechanical and electrical infrastructure systems associated with underground road, rail and metro systems. Alan has extensive experience in all aspects of mechanical and electrical works in tunnels especially ventilation – from feasibility through to final commissioning. He has been involved in both road and rail tunnels world-wide for more than 25 years. During that time he has worked on projects such as the Channel Tunnel, Delhi Metro, London’s Heathrow Express and Crossrail and most UK road tunnels. Dr West is the UK representative and English speaking secretary to the Road Tunnel Operations Committee of PIARC (2000-2007) and was a co-founder of the UK Tunnel Operators Forum.

Bill Gray has been involved in the design of ventilation systems for road, rail and service tunnels for over twenty years. He has had design responsibility for the ventilation systems of the Channel Tunnel, London’s Heathrow Express, Whittier Tunnel in Canada and the Copenhagen Metro in Denmark. He has also been responsible for many initial design and feasibility studies, including those for Crossrail in London and the proposed New York Harbour Crossing, and currently heads a team involved in several projects, including the current and future extensions to Athens Metro and the UK’s Terminal 5 development at Heathrow and Stonehenge road tunnel. Bill is also a member of PIARC’s Working Group 2 on tunnel pollutants and ventilation.

Paul Jenkins is based in our Hong Kong office and has over 30 years' experience in the design and construction of underground works with particular reference to mass transit railways. Much of Paul’s work has been in Asia Pacific in Hong Kong, Thailand and Taiwan. His UK experience includes work with London Underground and the design and construction of the Docklands Light Railway into Bank Station in the City of London. More recently, Paul was the Project Manager for the Mott MacDonald Group's involvement as the ICE/ISE for the entire US$ 16 billion Taiwan High Speed Rail Project. Also in Taiwan he was responsible for the reference design and tender documents for the Kaohsiung mass rapid transit system. In Thailand he was the Project Director responsible for the Project Management of the Bangkok Blue Line Metro Project. In Hong Kong he is now the Director responsible for transportation and infrastructure projects.

Alan Powderham has developed a world-wide reputation as a technical specialist/innovator in foundation engineering including cut-and-cover construction, jacked tunnels and deep excavations in difficult ground conditions, and is a leading practitioner of the Observational Method and Value Engineering. He has particular responsibilities for leading research and innovation in transportation throughout the Mott MacDonald Group, and is chairman of our Transportation Professional Excellence Forum. Alan has won numerous awards over the years, and is visiting lecturer at several universities on three continents. His 30-plus years of experience includes the cut-and-cover elements of the Channel Tunnel, value engineering for the Limehouse Link tunnel in London Docklands and the highly successful tunnel jacking on the Boston Central Artery project in the USA.

John Hawley is a Senior Vice President of Hatch Mott MacDonald based in California, where he managed the construction of the North Hollywood extension of the Los Angeles Metro, was the engineer of record for transit tunnels beneath San Diego State University, designed the first tunnels under the Sacramento River, and currently leads the design of the San Jose section of the Silicon Valley Rapid Transit. He has over 30 years experience in all aspects of design and construction management of tunnels and associated works for a variety of functions, with special knowledge of design and construction using the New Austrian Tunneling Method (NATM), hard rock tunnel boring machines, and soft ground pressurized face tunneling. He has made a particular study of the prediction and assessment of settlement effects caused by tunneling. He was technical coordinator of Mott MacDonald's design of the tunnels and related underground structures for the U.K.-France Channel Tunnel where, in addition to TBM-driven running tunnels and service tunnel, the works included cross passages, pumping stations, and an extensive network of construction access tunnels, and he directly controlled the detailed design of the U.K. Crossover in the world’s largest undersea cavern, which won the 1991 British Construction Industry Award for Civil Engineering. John taken leading roles on many major projects worldwide, including Heathrow Express, the Greater Cairo Wastewater Project, Hong Kong Shing Mun highway tunnels, Pulau Seraya immersed tunnel in Singapore, Hong Kong Strategic Sewage Disposal Scheme, and Tyne & Wear Metro.

Mike Savill is a senior project manager with 21 years experience of major infrastructure and transportation projects in Mott MacDonald. Mike has particular expertise in design management of metro and rail schemes, and has worked on worldwide projects such as the Channel Tunnel, Storebaelt, St Clair River Tunnel, Heathrow Express, BAA T5 and Crossrail. Extensive UK and international experience has shaped Mike’s management style as very adaptable, keen to pursue innovative solutions and focussed on value. Underpinning Mikes management capability is technical expertise in tunnel assessment, design, analysis, specification and site supervision; partnering and assurance systems applied to civil engineering and durability aspects of concrete, cast iron and masonry underground structures. Mike has specialist knowledge of tunnelling techniques in rock and soft ground gained in UK, Europe, South East Asia and North America. Published work includes papers on NATM Tunnel Monitoring, Applications for Geosynthetics in Rock Tunnels and Fire Strategy, Life Safety and Ventilation in Road Tunnels.