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313-343 Project

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Final design and route are subject to change pending public, engineering, and regulatory review.
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Project Overview

The 313/343 Project extends from Millbury to Ayer through the towns of Grafton, Shrewsbury, Boylston, West Boylston, Sterling, Lancaster and Ayer.

Construction is currently proposed in two phases: Phase I: Includes replacement of many existing wood poles and hardware repair and installations and construction of access roads – Start 2025 end 2026.

Phase II: includes replacement of remaining wood structures, hardware repair and installation and replacing existing shield wire with OPGW - Start 2029 end 2031.

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