The 76-foot-long vehicle holding cable drums are being escorted by police as they travel on some of the region's busiest routes.
The loads are being transported from Boston in Lincolnshire to Orsted in Oulton in north Norfolk.
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The 9-foot-wide unit will be escorted by Norfolk Police from the A14 at the Cambridgeshire border, along the A11, A134, A1122, A134, A10, Queen Elizabeth Way, A148 and B1149 before joining local roads to the site.
The first convoy made up of two units and an escort will hit roads at 9am on Thursday, April 25 with drivers being warned to expect delays.
The second, transporting an identical load, will leave at the same time on Friday, April 26.
The 76-foot-long vehicle holding cable drums are being escorted by police as they travel on some of the region's busiest routes.
The loads are being transported from Boston in Lincolnshire to........