The Riverhead Facility Upgrade Project will be completed in two phases.

Phase 1: Demolition of existing buildings and foundation, rebuilding the existing facility and adding 13 more truck stations to the existing truck loading area.

Phase 2: Upgrading existing regulator stations and operations building within the facility.

The benefits of these upgrades include improving the local system’s integrity and ability to support customers in colder weather months and increasing the operational efficiency of the facility by building a new maintenance and control building for our staff.

May 2025 through Spring 2027

Phase 1: May 2025 through December 2025

Phase 2: Spring 2026 through Winter 2026

We are making investments to upgrade the infrastructure system in your neighborhood to ensure customers receive safe and reliable service. This project will build a more reliable local energy system by reinforcing local infrastructure during the coldest days of the year.

No. there will be no interruption to service.

Most of this work will be done within the Riverhead Facility, but our contractor will be relocating underground electrical utilities in Mid-May 2025 at the intersection of Mill Road and Montauk Hwy. This work is anticipated to take 1-2 weeks. There will be a traffic flagger on-site to assist vehicular and pedestrian traffic.

No. All work will be done in National Grid’s facility or the public right-of-way (ROW).

While our contractors will make efforts to keep disturbance to a minimum, there will be noise associated with this project. Most of that noise will occur while excavation is underway as contractors use heavy equipment to demolish the existing buildings and foundations and trench ahead of infrastructure installation.

Please call our local outreach phone line: 516-452-3003 and speak with a member of our outreach team or email: Box.LIprojects@nationalgrid.com to speak with a member of our outreach team.