This follows load testing of the road over the weekend to ensure that it is safe for public use following repairs last week to stabilise the wall below the road.
The road closed at the end of May after movement in the carriageway. Extensive ground investigations were necessary to ascertain the cause of the problem and to devise the remedy.
County Councillor Don Mackenzie, Executive Member for Highways, said:
I’m pleased that we have been able to reopen the road under traffic lights, which will be manually controlled during the coming week from 6am and 6pm every day, and until 9pm Tuesday to Thursday during the Great Yorkshire Show, to ensure maximum efficiency and to minimise delays.
The closure period has been difficult for local communities, particularly businesses, so I’m sure they will welcome the reopening. It has always been our priority to reopen the A59 as quickly as possible for the benefit of all road users. It has been a complex operation in difficult conditions, but our staff and contractors have worked hard to reach this point.
Over the coming weeks, the road will continue to be monitored daily at Kex Gill for any further movement.
The County Council continues to work on a permanent solution to reopen the road fully. It says it will do all it can to keep the road open and to minimise any further closures. However, given the scale of the problem more permanent works may require a further road closure.
As soon as details are finalised, the Council will engage locally on when to carry out the repairs, what the implications are and how best to mitigate them.