Cheshire West and Chester Council has installed temporary traffic signals at Darnhall Bridge near Winsford to protect the fabric of the historic structure.
The Grade II listed bridge, on the south west side of Winsford, is now operating as a single lane bridge.
In November 2017 the Council invested in 3D laser scanning during the first stage of improvement works on the bridge.
The Council’s Cabinet Member for Environment, Councillor Karen Shore said: “Due to the deteriorated state of the bridge; it has been regularly monitored – these inspections have picked up some new cracks in the edges of the arch of the bridge.
As a consequence, we have reduced this two lane bridge to one lane with temporary traffic signals and water filled barriers to channel the traffic safely down the centre of the bridge.
“We will continue to monitor the bridge whilst we develop the repair solutions”
Timescales for the duration of the temporary signals and the refurbishment of the bridge are yet to be confirmed.