Welcome to the Interstate Reliability Project

The Interstate Reliability Project is a proposed 345-kilovolt (kV) transmission project in an existing transmission right-of-way. It is one of four New England East-West Solution (NEEWS) 345-kV transmission projects serving portions of New England. The Interstate Reliability Project is needed to meet the demand for electricity and support the reliable delivery of electricity to customers under many different conditions.

Project Information

The proposed Project begins in Millbury, Massachusetts and continues along the existing transmission line rights-of-way (ROW) into North Smithfield, Rhode Island. It continues west to Burrillville, Rhode Island and into Connecticut where it will connect to a new line being constructed by Connecticut public utility, Northeast Utilities.

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Project Update Notice - Massachusetts for the weeks of August 25th and September 1st

Over the next few weeks tree crews will continue along the right-of-way as follows:

  • Mill Street to Quaker Highway in Uxbridge
  • Providence Street in Uxbridge and Millville working towards the Rhode Island state line

The installation of matting and work pads, and road construction in the right-of-way will continue from the Millbury #3 Switching Station along the transmission corridor heading west towards Route 146 and then south in the vicinity of Route 146 to the Northbridge town line.

Project Update Notice - Rhode Island for the weeks of August 25th and September 1st

Tree clearing work continues as follows:

Week of Aug 25

  • Mowing and tree clearing activity continues to Town Farm Road in Burrillville 

Week of Sept 1

  • Tree clearing continues along the right-of-way to East Wallum Lake Road in Burrillville

Foundation drilling activity is underway at various locations along the right-of-way. Multiple foundation drilling crews will continue working the corridor from Sherman Farm Road to the West Farnum Substation in North Smithfield. In addition, drilling crews will be working from the Sherman Farm Road Switching Station west towards the Connecticut border. 

Click here for more project information.

Project Map

The Interstate Reliability Project encompasses approximately 15.4 miles of ROW in Massachusetts through the towns of Millbury (.7 mile), Sutton (6.2 miles), Northbridge (.3 mile), Uxbridge (7.6 miles), and Millville (.6 mile); and 22.5 miles in Rhode Island through the towns of North Smithfield (9.3 miles) and Burrillville (13.2 miles).

Notice: Utility rights-of-way are off limits to off-road drivers

National Grid reminds off-road drivers that utility rights-of-way are private property where unauthorized dumping and trespass by motorized vehicles is unlawful. These rights-of-way are a critical part of the company's electric and gas network. Limiting activities within the corridors protects the public, avoids damage to company facilities and supports the reliability of electric and gas service. For more information, click here.