MOWLEM has appointed Colin Graidage as the boss of its railways division.
Mr Graidage takes over from Mike Austin at the head of the 600-strong business, which includes contractor Hocking, labour agency Fastrack and switches and crossings manufacturer Edgar Allen.
He worked on Mowlem's £180 million high-speed rail project in Taiwan after 10 years at US subsidiary Charter Builders.
Mr Austin will stay within Mowlem, possibly in a management role in Australia.
Mowlem carries out around £250 million-worth of railways work a year.
But the company recently hit problems on its Alice Springs to Darwin freight rail project in Australia, which it part-owns and operates, due to lower than expected rev-enues.