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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. The construction schedule is currently proposed as follows, but is subject to change:

Beginning in 2025 through 2026 activities include replacement of many wood structures, hardware repair and installation and construction of access roads.

Beginning in 2029 through 2031 activities include replacement of remaining wood structures, hardware repair and installation and replacing existing shield wire with Optical Ground Wire.

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