ROADWORKS on Huddersfield ring road are set to last for the best part of a year.
The work costing £2.5m starts next Monday and will carry on for 40 weeks.
It includes re-waterproofing the often flooded Unna Way Underpass and its supporting walls.
Work will also be done on the Northgate junction above, but the junction will remain open at all times.
The tunnel will be fully closed on some nights so traffic will then have to use the junction.
Other roadworks are planned for the ring road between the Alfred Street multi-storey car park and Unna Way. The ring road will remain open at all times with only limited night lane closures to keep disruption to a minimum.
All the works will be phased and co-ordinated to minimise disruption.
Kirklees Cabinet member for Transportation Clr David Hall said: "These are major works, but it is vital they are carried out. The work has been carefully planned to make sure that motorists experience the minimum disruption possible.”