The B5289 Borrowdale Road in the Lake District will be shut to cars for six weeks while a retaining wall is repaired.
Pedestrians, dismounted cyclists and horse riders will be able to pass through while work is ongoing.It'll cost around £60,000 to complete the work.
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Emergency services are on the scene, at a farm in the Shawhead area.
Homes were evacuated as fire crews worked through the night to get the blaze under control. No one was injured.