Urgent repairs are needed to Ballagawne Bridge near Kirk Michael.
The Department of Transport has discovered corrosion on the iron girders which support the structure, on the Kirk Michel to Peel Road.
No major work has been carried out on the bridge since it was built, to carry traffic over the old Kirk Michel to St John's railway line.
Extra supports will be installed on either side over the next two weeks, with traffic directed over the centre of the bridge to avoid the weakened area.
DoI apologises for motorsport fees error
The chairman of Manx Auto Sport says the club accepts an error was made
Tynwald rejects issuing censure
Members debated the issue for over two hours
Reports of dangerous jet ski activity prompts warning to 'respect Safe Bathing Areas'
'We ask all watercraft users to act responsibly'
Former Manx Care CEO to take charge of Guernsey health service
Teresa Cope left the Island's healthcare provider last month
