National Grid is making a significant investment to modernize our natural gas system in Northwest Nassau County. This project, known as the Northwest Nassau Natural Gas Integrity Project, will help improve system safety and provide Long Island’s gas system with greater operational flexibility. Upon completion of the project, National Grid will have installed approximately 11 miles of new gas main and built two new regulator stations in Northwest Nassau County.

The project started in June 2017 when National Grid began the installation of 1.82 miles of new gas main on the LIE North Service Road starting from Pinetree Lane in Old Westbury and ending on Jefferson Avenue in Roslyn Heights. National Grid has since completed gas main installation on Locust Lane and regulator station installation in Roslyn Heights and Old Westbury.