Welcome to the Interstate Reliability Project

The Interstate Reliability Project is a 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 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 January 26th and February 2nd

Drilling activity continues along the right-of-way at Lackey Pond, Williams Street, Douglas Pike, Taft Hill Road, High Street, Hazel Street, Mill Street, Richardson Street and Quaker Highway in Uxbridge. Foundation activity continues along the transmission corridor toward the Rhode Island border.


The wire pulling work from the Millbury #3 Switching Station to Boston Road in Sutton is near completion. The wire pulling activity will continue in Sutton along Stone School Road over the next few weeks, moving towards Central Pike.

Project Update Notice - Rhode Island for the weeks of January 26th and February 2nd

Lewis Tree Service workers are conducting routine vegetative maintenance in the right-of-way corridor from the Sherman Farm Switching Station in Burrillville to the West Farnum Substation on Greenville Road in North Smithfield.


Foundation activity has been underway along the transmission route from Sherman Farm Road west to the Connecticut state line. This work will be followed with the placement of structures in the right-of-way for assembly and installation.

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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.

Notice: Hunting season and the safety of our workers

With the onset of hunting seasons in Massachusetts and Rhode Island, we ask hunters to refrain from hunting on and around the Interstate Reliability Project rights-of-way and access corridors. The Project areas are active work zones for well over 100 workers through 2015. The safety of our workers is paramount, and we ask for your cooperation and consideration as you make your hunting plans.