Drivers in Skipton will face a three-mile diversion when work gets underway on a puffin crossing in the town centre.
Construction is set to begin at the junction of Mill Bridge and Water Street on March the 5th, and is expected to last a week.
Residents have campaigned for the crossing following a number of accidents in the vicinity of the busy junction that leads to the town's high street.
A one-way system will be put in place, allowing traffic out from the high street onto Raikes Road or Water Street.
But traffic travelling in the opposite direction will not be able to enter the high street, meaning no right turns out of Water Street.
Instead, vehicles will be diverted along Grassington Road, up to the bypass and along the A59, where a temporary 40 mile an hour speed limit will be in action, and back towards the town centre along Knaresborough Road and The Bailey.