WINDSOR — State police will escort a 286-ton electrical transformer over the road from Searsport to the Central Maine Power’s new Coopers Mills Road substation in Windsor.

The transformer is scheduled leave the Mack Point Marine Terminal in Searsport early Wednesday morning on a 16-axle tractor-trailer rig. The total gross weight of the truck and transformer assembly is 426 tons.

The new transformer is part of CMP’s $1.4 billion upgrade of Maine’s bulk power transmission system. Its delivery could take up to two days to complete.

The truck leaves Searsport at 5 a.m. Its first leg will take it south on U.S. Route 1 to Belfast.

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