Eversource Transmission Line-Mass Central Rail Trail Project
This page contains information related to the Notice of Intent filing submitted by Eversource and the Department of Conservation and Recreation for the installation of a new 115 kV underground electrical transmission line and the construction of a portion of the Mass Central Rail Trail, from the existing Sudbury Substation to the Hudson town line, along the inactive Massachusetts Bay Transportation Authority Right-of-Way.
Trail Connections During Construction
For the next 18-24 months, the Eversource Transmission Line Project, which runs adjacent to Hop Brook Conservation Land, will be under construction. During this time, the rail bed corridor will not be accessible to the public and trail connections between Hop Brook and Memorial Forest will not be available. The Town has worked with the contractor to permit two trail connections, shown on this map, during the time of year restrictions when construction cannot occur on this section of the corridor. Only these two crossings will be available for public use from May 1 through July 31, 2023. Hikers will need to stay either north or south of the rail corridor all other times of the year. Please use the respective trail heads (either the Hop Brook Conservation Land or the Women’s Federation parking areas on Dutton Road, or the Assabet River National Wildlife Refuge on Hudson Road) to access these respective trail systems. Time of Year Restrictions have now expired and extensive work will be occurring from the Hudson Town Line to Dutton Road, including the removal of the Hop Bridge (Bridge 128), starting August 1. There should be no access through the Eversource corridor until further notice.
Construction Schedules:
Construction Schedules will be provided and updated weekly throughout construction. Please use the most recent construction schedule to determine when construction in anticipated to be in your area.
- October 18, 2022
- December 12, 2022
- December 20, 2022
- December 19, 2022 – March 6, 2023
- December 27, 2022
- January 3, 2023
- January 10, 2023
- January 24, 2023
- January 30, 2023
- February 7, 2023
- February 14, 2023
- February 21, 2023
- February 28, 2023
- March 7, 2023
- March 14, 2023
- March 21, 2023
- March 28, 2023
- April 3, 2023
- April 10, 2023
- April 18, 2023
- April 25, 2023
- May 2, 2023
- May 9, 2023
- May 16, 2023
- May 23, 2023
- May 30, 2023
- June 6, 2023
- June 13, 2023
- June 27, 2023
- July 5, 2023
- July 11, 2023
- July 18, 2023
- July 25, 2023
- August 1, 2023
- August 8, 2023
- August 15, 2023
- August 22, 2023
- August 29, 2023
- September 5, 2023
- September 12, 2023
- September 19, 2023
- September 26, 2023
- October 3, 2023
- October 10, 2023
- October 17, 2023
- October 24, 2023
- October 31, 2023
- November 7, 2023
- November 14, 2023
- November 21, 2023
- November 28, 2023
- December 5, 2023
- December 12, 2023
- December 19, 2023
- December 27, 2023
- January 2, 2024
- January 10, 2024
- January 16, 2024
- January 23, 2024
- January 30, 2024
- February 6, 2024
- February 13, 2024
- February 20, 2024
- February 27, 2024
- March 5, 2024
- March 12, 2024
- March 19, 2024
- March 26, 2024
- April 2, 2024
- April 9, 2024
- April 16, 2024
- April 23, 2024
- April 30, 2024
- May 7, 2024
- May 14, 2024
- May 21, 2024
- May 28, 2024
- June 4, 2024
- June 11, 2024
- June 18, 2024
- June 25, 2024
- July 2, 2024
- July 9, 2024
- July 16, 2024
- July 23, 2024
- July 30, 2024
- August 6, 2024
- August 13, 2024
- August 20, 2024
- August 27, 2024
- September 3, 2024
- September 10, 2024
- September 17, 2024
- September 24, 2024
- October 2, 2024
- October 8, 2024
- October 15, 2024
- October 21, 2024
- October 29, 2024
- November 5, 2024
- November 12, 2024
- November 19, 2024
Weekly Environmental Compliance Packages
Environmental Compliance Reports are provided weekly that document work conducted each week and oversight provided to ensure compliance with permitting.
- October 17, 2022
- October 24, 2022
- October 31, 2022
- November 7, 2022
- November 14, 2022
- November 21, 2022
- November 28, 2022
- December 5, 2022
- December 12, 2022
- December 19, 2022
- December 26, 2022
- January 2, 2023
- January 9, 2023
- January 16, 2023
- January 23, 2023
- January 30, 2023
- February 6, 2023
- February 13, 2023
- February 20, 2023
- February 27, 2023
- March 6, 2023
- March 13, 2023
- March 20, 2023
- March 27, 2023
- April 3, 2023
- April 10, 2023
- April 17, 2023
- April 24, 2023
- May 1, 2023
- May 8, 2023
- May 15, 2023
- May 22, 2023
- May 29, 2023
- June 5, 2023
- June 12, 2023
- June 19, 2023
- June 26, 2023
- July 3, 2023
- July 10, 2023
- July 17, 2023
- July 24, 2023
- July 31, 2023
- August 7, 2023
- August 14, 2023
- August 21, 2023
- August 28, 2023
- September 4, 2023
- September 11, 2023
- September 18, 2023
- September 25, 2023
- October 2, 2023
- October 9, 2023
- October 16, 2023
- October 23, 2023
- October 30, 2023
- November 6, 2023
- November 13, 2023
- November 20, 2023
- November 27, 2023
- December 4, 2023
- December 11, 2023
- December 18, 2023
- December 25, 2023
- January 1, 2024
- January 8, 2024
- January 15, 2024
- January 22, 2024
- January 29, 2024
- February 5, 2024
- February 12, 2024
- February 19, 2024
- February 26, 2024
- March 4, 2024
- March 11, 2024
- March 18, 2024
- March 25, 2024
- April 1, 2024
- April 8, 2024
- April 15, 2024
- April 22, 2024
- April 29, 2024
- May 6, 2024
- May 13, 2024
- May 20, 2024
- June 3, 2024
- June 10, 2024
- June 17, 2024
- June 24, 2024
- July 1, 2024
- July 8, 2024
- July 15, 2024
- July 22, 2024
- July 29, 2024
- August 5, 2024
- August 12, 2024
- August 19, 2024
- August 26, 2024
- September 2, 2024
- September 9, 2024
- September 16, 2024
- September 23, 2024
- September 30, 2024
- October 7, 2024
- October 14, 2024
- October 21, 2024
- October 28, 2024
- November 4, 2024
- November 11, 2024
- November 18, 2024
- November 25, 2024
- December 2, 2024
- December 9, 2024
Erosion Controls and Stormwater Inspections
- November 18, 2022
- December 19, 2022
- January 11, 2023
- January 30, 2023
- February 27, 2023
- March 14, 2023
- March 30, 2023
- April 20, 2023
- May 5, 2023
- May 24, 2023
- June 15, 2023
- June 26, 2023
- July 19, 2023
- August 21, 2023
- September 6, 2023
- October 5, 2023
- October 23, 2023
- November 16, 2023
- December 14, 2023
- January 30, 2024
- February 28, 2024
- March 27, 2024
- April 22, 2024
- May 31, 2024
- May 27, 2024
- July 1, 2024
- August 9, 2024
- September 16, 2024
- October 15, 2024
- November 15, 2024
Notice of Intent Documents
- Notice of Intent
- Wildlife Habitat Evaluation
- Eversource Sudbury Notice of Intent Plans dated March 2020
- Mass Central Rail Trail Notice of Intent Plans dated March 2020
- Stormwater Management Report
- Powerpoint Presentation – April 13, 2020 Meeting
- Department of Environmental Protection Comments
Revised Materials Submitted for the July 8th Meeting
- Updated Eversource Sudbury Plans dated June 24, 2020
- Updated DCR Plans
- Draft Eversource Stormwater Pollution Prevention Plan
- Draft DCR Stormwater Pollution Prevention Plan
- Sudbury – Soil and Groundwater Analytical Memo
- Time of Year Restrictions Figures
- Draft Turtle Protection Plan
- Draft Corridor Management Plan
- MCRT Operation and Maintenance and Long Term Pollution Prevention Plan
- Response to BETA Sudbury-Hudson Transmission Peer Review dated May 11, 2020
- Response to Conservation Commission and Public Comments compiled at and following the April 13, 2020 Meeting
- Mass DEP Comment Letter – July 2017
- Dr. Slater January – May 2018 Email Correspondence
- Powerpoint Presention From Sudbury Valley Trustees
Revised Materials Submitted for August 13, 2020 Meeting
- Response to BETA Stormwater Comments – dated July 30, 2020
- Eversource Sudbury NOI Plans – July 30, 2020
- DCR – MCRT Wayside NOI Plan – July 30, 2020
- Revised Stormwater Checklist – July 14, 2020
- Stormwater Management Plan – July 14, 2020 (with calcs)
- Stormwater Management Plan – July 14, 2020 (w/o calcs)
- Operation and Maintenance Plan and Long Term Pollution Prevention Plan – July 2020
- Response to Comments from July 8, 2020 Hearing Compiled – No Plan
- Response to Comments from July 8, 2020 Hearing
- Logs and Lab Reports Combined
- Corridor Management Plan – Operations and Maintenance – Long-term Pollution Prevention Plan
- Eversource Best Management Practices Manual
- Sudbury NOI Plans – 2020-08-10_Updated
- BETA Sudbury-Hudson Transmission Peer Review dated August 7, 2020
Revised Materials Submitted for the November 2, 2020 Meeting
- Response to BETA August 7, 2020 Peer Review
- Attachment A – Vernal Pool Buffers
- Attachment B – Wildlife Habitat Summary Table
- Attachment C – Eversource Plans, dated October 2020
- Attachment D – Time of Year Restrictions
- Attachment E – FEMA No-Rise Certification
- Attachment F – Revised Operation and Maintenance Plan
- Attachment G – Revised Stormwater Pollution Prevention Plan Report
- DCR Plan Sheet C-38 – Showing Rotary
- Eversource Sheet 61
- Sudbury Stormwater and Impact Update
- Revised Stormwater Report
- Partner Engineering and Science Inc. LSP Peer Review
Revised Materials Submitted for the November 23, 2020 Meeting
- Final Submission Letter dated November 13, 2020
- Stand-Alone Eversource Project Stormwater Standard Compliance dated November 13, 2020
- Updated Landscaping Plans
- LSP Response to Partner Comments dated November 6, 2020
Revised Materials Submitted for the January 21, 2021 Meeting
- Response to Comments dated January 8, 2021
- Sudbury Eversource NOI Plans dated January 2021
- Sudbury DCR Plans dated January 7, 2021
Public Comment Letters
- Friends of the Assabet River National Wildlife Refuge
- Sudbury Valley Trustees – April 2020
- Protect Sudbury (link to Attachments)
- Legislative Letter to DCR Commissioner
- Sudbury Valley Trustees – July 2020
- MCRT DCR Response to Legislative Letter
- Protect Sudbury Letter to DCR – August 3, 2020
- Sudbury Historical Commission Letter to Mass. Historical Commission
- Historical Commission Comment Letter dated August 25, 2020
- Sudbury Valley Trustees – November 2, 2020
- Protect Sudbury Partners Peer Response, dated November 20, 2020
- Sudbury Valley Trustees Comments – November 23, 2020
- Letter from Nick Pernice – November 23, 2020
- Letter from Protect Sudbury – December 14, 2020
- Comment Letter from Rebecca Cutting – December 14, 2020
- Protect Sudbury Letter to Con Comm December 14, 2020
- Protect Sudbury Letter Regarding Impacts from EMFs
- US FWS Comment Letter – January 5, 2021
- Sudbury Valley Trustees – January 19, 2021
- Protect Sudbury – January 20, 2021
- Letter from Lisa Kouchakdjian – January 21, 2021
Questions and Answers
- Questions compiled at and following the April 13, 2020 Meeting
- Response to Conservation Commission and Public Comments compiled at and following the April 13, 2020 Meeting
- Questions compiled from the July 8, 2020 Meeting
- Response to Comments from July 8, 2020 Hearing
Third Party Peer Review:
- BETA Sudbury-Hudson Transmission Peer Review dated May 11, 2020
- Response to BETA Sudbury-Hudson Transmission Peer Review dated May 11, 2020
- Response to BETA Stormwater Comments – dated July 30, 2020
- BETA Sudbury-Hudson Transmission Peer Review dated August 7, 2020
- BETA Sudbury-Hudson Transmission Peer Review dated August 31, 2020
- Response to BETA August 7, 2020 Peer Review
- BETA Sudbury-Hudson Transmission Peer Review dated September 18, 2020
- Response to Horsely Witten Peer Review, dated October 15, 2020
- BETA Sudbury-Hudson Transmission Peer Review dated December 7, 2020
- Response to Comments dated January 8, 2021
Conservation Commission Meeting Recordings
- April 13, 2020
- July 8, 2020
- August 13, 2020
- November 2, 2020
- November 23, 2020
- December 10, 2020
- December 14, 2020
- December 28, 2020
- January 21, 2021
- January 28, 2021
- February 3, 2021
Conservation Commission Meeting Minutes
- April 13, 2020
- July 8, 2020
- August 13, 2020
- November 2, 2020
- November 23, 2020
- December 10, 2020
- December 14, 2020
- December 28, 2020
- January 21, 2021
- January 28, 2021
- February 3, 2021
Order of Conditions
At their meeting on February 3, 2021, the Conservation Commission closed the hearing and voted to issue an Order of Conditions approving this project.
Construction Documents
- Baseflow and Baseline Water Quality Monitoring Program for Coldwater Fisheries – August 2021
- Turtle Protection Plan – August 2021
- Additional Soil and Groundwater Sampling Plan
- Invasive Species Management Plan
- Soil and Groundwater Management Plan
- Important Wildlife Habitat Features Mapping and Supplemental Restoration Plan
- Final Earth Removal Board Sampling Results – March 14, 2022
- Phase II Approved Turtle Protection Documents
- Culvert Inspection Report
- Environmental Compliance Manual
- Environmental Compliance Training Presentation
- Wildlife Habitat Features Report – December 2022 – May 2023
- Wildlife Habitat Features Report – June 2023 – December 2023
- Wildlife Habitat Features Report – January 2024 – June 2024
Baseflow and Baseline Water Quality Monitoring Program Results
- December 2021
- March 2022
- June 2022
- November 2022
- March 2023
- June 2023
- August 2023
- November 2023
- March 2024
- October 2024
For additional background information on this project please click here to see the Eversource Transmission Line Project Information page.