The suspension bridge was built by Thomas Telford and crosses the Menai Strait to link the island of Anglesey and the mainland of North Wales. When opened in 1826, it had the longest span in the world at 176m.
A contract was let in December 2020 to replace footway panels on the bridge (link opens in new tab).
The Menai Strait is also crossed by the Britannia Bridge, built by Robert Stephenson.
The bridge’s safety needs to be improved and the plans are currently being finalised, said the Welsh government. UK Highways will carry out the improvements. Cadw, the historic environment service of the Welsh government, will monitor the works to ensure the listed structure is protected.
A 7.5-tonne vehicle weight restriction has been put on the Menai Bridge until further notice.