Lancashire County Council is asking drivers to allow more travelling time due to vital bridge refurbishment work on the A6 just north of Preston between Bilsborrow and Barton.
It may affect you if are travelling down into Preston between 30 June and Friday 4 July.
Safety barriers will be installed next to White Horse Railway Bridge which carries the A6 over the West Coast Mainline.
To meet standards rail lines are required to be protected from traffic so barriers are being erected to prevent vehicles leaving the road and . The new barrier will also allow future works to replace the adjacent footbridge to go ahead.
There will be temporary traffic lights either side of the bridge so work can continue safely.
Harald Nielsen, principal bridges engineer, said: “We’re working outside of peak hours and our schedule is to complete the job within five days to minimise disruption as much as possible but we sorry for the inconvenience this will cause.
“We need to install the barriers to prevent vehicles accidentally leaving the road and coming to rest on the railway. In future this will allow us to replace the adjacent aging footbridge with a stronger one which offers protection to a very important piece of rail infrastructure.
“We’re grateful for people’s patience while the traffic management is in place.”
The White Horse Rail Bridge is located between the junctions with the A6 of White Horse Lane and Jepps Lane.
Expect traffic disruption from 9.00am to 4.00pm Monday 30 June to Friday 4 July.