Constitution Pipeline
Constitution Pipeline
We make clean energy happen.
Project Overview & Resources
A Pipeline with a Purpose: The Constitution Pipeline
Imagine a cold winter morning in New York or New England. Families wake up to warm homes, hot showers, and breakfast sizzling on the stove, all powered by clean, reliable natural gas. Behind this everyday comfort lies the connection, innovation, and energy security to those modern-day conveniences.
Stretching approximately 125 miles from the gas-rich fields of Susquehanna County, Pennsylvania, to Schoharie County, New York, the Constitution Pipeline is more than just a piece of infrastructure. It’s a lifeline designed to deliver up to 650,000 dekatherms of natural gas pipeline capacity. That’s enough natural gas equivalent to serve the daily needs of about 3 million homes in the U.S. Northeast. This 30-inch pipeline links directly to the Iroquois and Tennessee interstate systems, opening a vital corridor of energy to the Northeast.
But this project isn’t just about supply, it’s about transformation. In a region where the electric grid is under pressure and winters are harsh, Constitution offers a cleaner alternative to heating oil, cutting emissions and supporting a more sustainable future. Natural gas emits 50% less carbon than fuel oil, making it a smart step toward cleaner air and a healthier environment.
The pipeline also taps into the Marcellus Shale, one of the most abundant and affordable natural gas sources in the country. While electricity prices in New England soar 55% higher than in Pennsylvania, Constitution aims to level the playing field, bringing cost-effective energy to homes and businesses that need it most.
The Constitution Pipeline isn’t just about moving gas, it’s about moving forward.
Constitution Pipeline Benefits
3m
equivalent to what is needed to supply 3 million homes
1,575
jobs, both direct and indirect
$130m
in direct labor income
$13M
in property taxes
650,000
dekatherms of pipeline transportation
+49%
in natural gas demand since 2013
Employees led 110 projects in 17 states during Williams Volunteer Week
Much of Northeast expansion in service in time for winter
Saving Pennsylvania’s Miller Mountain
Historic Pennsylvania trestle bridge reopens for outdoor recreation
New Jersey wetlands: where eagles fly
Streaming Service: Creek project enhances outdoor recreation
Construction Activities
Construction activities for the Constitution Pipeline span Pennsylvania and New York, beginning in Susquehanna County, PA and ending in Schoharie County, NY. Key construction elements include pipeline installation, metering and regulating stations. The work also includes connecting new infrastructure to existing transmission systems, ensuring enhanced energy delivery and reliability across the region. While the project does not extend into New Jersey, it complements broader regional efforts to modernize and expand energy infrastructure in the Northeast.
Pennsylvania Scope of Work (Susquehanna County)
- Installation of a 30-inch diameter natural gas pipeline extending 125 miles
- Supplies natural gas from the Marcellus Shale to Northeast markets.
New York Scope of Work (Broome, Chenango, Delaware, Schoharie Counties)
- 2 metering and regulating stations to monitor and control gas flow.
- Mainline valves and pressure relief components to ensure safe and efficient system operation.
- The pipeline terminates in Schoharie County, connecting to existing infrastructure for regional distribution.
Submit FERC, USACE and State Applications: 2025
Receive FERC Order and USACE Permits: August 2026
Target Construction Start: Fourth Quarter 2026
Target In-Service Date: Third Quarter 2027
Email: outreach@williams.com
Project hotline: 1-888-275-9084