News & Events
About the Project
Project Overview and Benefits
PSEG Long Island, as the agent of LIPA, is filing an application for an amendment to the Article VII certificate for Transmission Line 138-467 which connects the Stewart Avenue Substation in Uniondale to the Newbridge Substation in Levittown, as well as Transmission Line 138-567 which connects the Newbridge Substation to the Ruland Road Substation in Melville. The Newbridge Bypass Project would extend Transmission Line 138-467 to a new termination point, within LIPA-owned property, west of Stewart Avenue Substation, modify both lines to bypass the Newbridge Substation, and extend Transmission Line 138-567 east at the Ruland Road Substation within LIPA property.
The result would be the combining of the two existing lines into one, which will be operated at 345kV.
The line must be installed to meet current and future capacity needs and to continue the provision of safe, robust, and reliable service in the area.
Benefits Include:
The modified 345kV electric transmission line will help ensure continued reliable service to the area and across Long Island.
The modified line will be located entirely underground primarily under roads and rights-of-way except for certain above-ground electrical equipment within LIPA-owned property.
Throughout construction, access to businesses and residences along the project route will be maintained.
Permitting & Consultation Process
To construct the Project, PSEG Long Island will need, in addition to other necessary permits:
- The New York State Public Service Commission's issuance of an amendment to the Article VII Certificate of Environmental Compatibility and Public Need and approval of an Environmental Management & Construction Plan (EM&CP).
- Approval from or consultation with the New York Department of Environmental Conservation, New York State DOT, and New York State Office of Parks, Recreation & Historic Preservation.
- Consultation with Nassau County, Suffolk County, Town of Hempstead, Town of Huntington and Village of Garden City.
New York State Public Service Commission Article VII and EM&CP Information
The Project's Public Service Law Article VII application and related documents in this case (Case 25-T-0242) can be accessed from the PSC's website (www.dps.ny.gov). Click "Commission File" and then "'File Search” to go to the Search page, then fill in the "Search by Case Number” box with the number for this case (25-T-0242). This will bring up the main Document and Matter Management ("DMM”) page(s) for this case, where the materials are located.
In addition, interested persons who wish to participate as parties in this case may file for party status. On the DMM page for this case, the prospective party should click the button at the upper right labeled "Request for Party Status” to see a Public Service Commission web page with instructions for the procedures to follow to become a party.
Document Library
- PSEG Long Island Newbridge Bypass FAQ - 04/17/2025 - 6.38 MB
- Filing Letter (Newbridge) 4-15-25 - 04/17/2025 - 159 KB
- Amendment Application (Newbridge) - 04/17/2025 - 446 KB
- Appendix A (Newbridge) Project Figures - 04/17/2025 - 14.50 MB
- Appendix B (Newbridge) Agency Consultation - 04/17/2025 - 9.63 MB
- Appendix C (Newbridge) Public Outreach - 04/17/2025 - 2.43 MB
- Appendix D (Newbridge) Engineering Drawings - 04/17/2025 - 5.63 MB
- Appendix E (Newbridge) Local Law Analysis - 04/17/2025 - 374 KB
Construction Process
Substation Upgrades
Equipment upgrades will be made within the LIPA-owned properties at the Stewart Avenue Substation and the Ruland Road Substation to create termination points for the connection of the 345kV line.
Underground Transmission Construction Process Overview
Splice Vaults Installation
Underground vaults will be installed at intervals along the route to splice together underground cable.
Conduit Installation
During the installation process, crews will route the new conduits to the new splice vaults.
Restoration
After completing the installation of the vaults, any excavated and disturbed areas will be restored.
Cable Installation
Underground cable arrives on trucks specifically designed for their installation. Crews will pull cable from one vault to another along the project route.
Cable Splicing
Crews will set up a climate-controlled environment at each vault location to splice the underground cables together. This activity is continuous for approximately one week for each vault.