One of the busiest roads in the area is to close for repairs.
Motorists are being advised that a section of the Calderdale Way (A629) will be closed over two weekends in May.
And a 20mph speed limit will also be in force on a stretch of the road.
The uphill section of the road towards the Ainley Top roundabout is to be surface-dressed, sealing the existing road surface and prolonging its life.
The downhill section towards Halifax will remain open as usual.
The work is weather-dependent though and cannot be carried out if there is heavy rain.
Calderdale Council engineers say it will be necessary to close the section of the road from Salterhebble to Ainley Top roundabout over the weekends of May 9 and 10 and 16 and 17 to carry out the essential maintenance works safely.
A diversion will be in place using Stainland Road, Saddleworth Road, through Elland onto Dewsbury Road and New Hey Road, before joining back up with the A629 at Ainley Top.
Advance warning signs have been placed on approaches to the road advising of the closure and asking drivers to seek an alternative route.
In addition, a 20mph speed limit will be in place from Monday, May 11 to Friday, May 15 as there will initially be some loose chippings on the road.
Work on the gas main at Elland Wood Bottom will be carried by Northern Gas Networks between those dates while using the 20mph temporary speed limit.
Calderdale Council’s Head of Planning and Highways, Geoff Willerton, said: “These works will increase the life of the road and improve the driving surface for motorists using this busy route.
“We will do all that we can to complete the work as quickly as possible, and thank people in advance for their patience.”