Sutton Bank on the A170 near Thirsk will be closed for three weeks to undergo the most extensive maintenance programme in its recent history.

North Yorkshire County Council’s highways teams will survey the entire slope, stabilise the south hairpin bend to prevent landslips and carry out essential maintenance on the rock face to prevent any falls.

Due to the scale of the scheme, a full road closure will be in place from 7am on Sunday, September 11, until 7pm on Sunday, October 2.

The executive member for highways and transportation, Cllr Keane Duncan, said: “These major works on Sutton Bank will ensure that it remains structurally sound and hopefully reduce the need for longer closures in future.

Read more: Why the A19 will be shut for six weeks with a 50mph speed limit

“Our annual maintenance scheme usually takes a week, so we appreciate the added disruption that the extended timescale will cause.

"We ask the public for their understanding and co-operation while the work is ongoing.”

Cllr Alyson Baker, member for the Hillside and Raskelf division, said: “The A170 is a key strategic route across the county, so it is essential to make sure it is safe and fit for future traffic demands.

“The short-term disruption of this annual maintenance scheme is outweighed by the long-term benefits.

"We are asking road users to familiarise themselves with the official diversion route and allow extra time for journeys.”

The diversion will not follow the caravan route and instead will direct motorists to the A19 south from Thirsk to York Ring Road then east along York Ring Road to the junction with A64.

Or, travelling north stay on the A64, join the A169 to Pickering, and back onto the A170.

Access to homes on Sutton Bank will be maintained whenever possible.

However, due to the nature of the works there may be times when access is restricted.

On September 21 and 22, road maintenance will also take place on the A170 Sutton Road between Felixkirk Road and Moor Lane.

Access to Sutton-under-Whitestonecliffe will be maintained, but road users are being warned of delays.

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