National Grid is preparing to begin construction on the D-156 Refurbishment Project, a major infrastructure improvement that will upgrade approximately 5.5 miles of overhead 115 kilovolt (kV) transmission line within an existing utility right-of-way.

Answers to your frequently asked questions.

See the most up-to-date construction timeline.

Project fact sheet, map, and more.

Keep up to date on project status, meetings, and events.

Phone and email information.