Part of a motorway in Greater Manchester and Cheshire is being closed for the next two weekends so a bridge can be replaced.
The M56 will be closed westbound from junctions six (Hale Barns) to eight (Lymm) and eastbound from junctions nine (M6) to six.
The closures will be from 2200 BST on Friday until 0500 BST on Monday.
The 39-year-old Bowdon View Bridge, which links the M56 and the A556, is being pulled down and replaced.
The westbound exit slip road will be closed to traffic throughout the week.
Engineers are demolishing the bridge during the first weekend closure (15 to 18 October).
The new 1,830 tonne bridge, which has been constructed alongside the motorway, will be manoeuvred into place on the second weekend (22 to 25 October).
Matt Sweeting, of the Highways Agency, said: "The existing Bowdon View Bridge is in urgent need of replacement.
"The installation of the bridge is essential to ensure reliable and safe journeys along this key route in and out of Manchester.
"Once the new bridge is installed it will be opened to traffic and the weight restriction currently in place will be lifted.
"One lane of the bridge will remain closed until the next stage of work to resurface the slip road and improve the junction layout are completed."
The Highways Agency said diversions would be clearly signposted.