Bridge designer John Riddle (M) has set up a new company with North Yorkshire steel fabricator Allerton Engineering.
The firm will be known as Allerton Bridges and will offer design and build services throughout the country.
Tony Fletcher (M) will join WS Atkins as managing director of its Rail business from 1 April 2002.
Fletcher has been general manager of Railtrack's West Coast Main Line project since March 1999 and has worked in the rail industry for 27 years. He has held a number of senior positions at Railtrack, including project director on both Heathrow Express and Railtrack's £1bn station regeneration programme.
He will replace Peter Nelson, who has been managing director of WS Atkins Rail since April 1999.
Professor David Butler (M) has been promoted to Professor of Water Engineering in the department of civil and environmental engineering at Imperial College, London.
(M) has joined Beckett Rankine Partnership as a principal engineer. Dale will strengthen
Richard Jemmett has joined Mouchel as director of strategic consultancy. He was previously with Andersen's business consultancy practice where he specialised in the development of strategies for energy, utility and infrastructure companies across the UK and mainland Europe.