Federal Energy Regulatory Commission to Prepare Environmental Impact Statement for Two Natural Gas Projects

The Federal Energy Regulatory Commission will prepare an environmental impact statement to analyze the potential effects of two proposed natural gas projects: the Mississippi Crossing Project and the South System Expansion 4 Project. These projects aim to provide an incremental transportation capacity of 3.423 billion cubic feet per day to the southeast region. The Mississippi Crossing Project involves building approximately 199 miles of pipeline across multiple counties in Mississippi and Alabama, while the South System Expansion 4 Project proposes building 291 miles of pipeline loops and upgrading existing compressor stations across Mississippi, Alabama, and Georgia. The environmental impact statement will assess potential effects on geology, water resources, vegetation, and wildlife, including potential impacts on National Rivers Inventory segments and disturbance of land for construction.

Key Takeaways:

The Federal Energy Regulatory Commission will prepare an environmental impact statement to analyze the potential effects of the Mississippi Crossing Project and the South System Expansion 4 Project.
The Mississippi Crossing Project involves building approximately 199 miles of pipeline across multiple counties in Mississippi and Alabama, while the South System Expansion 4 Project proposes building 291 miles of pipeline loops and upgrading existing compressor stations across Mississippi, Alabama, and Georgia.
The environmental impact statement will assess potential effects on geology, water resources, vegetation, and wildlife, including potential impacts on National Rivers Inventory segments and disturbance of land for construction.
The projects would cross multiple waterbodies and rivers designated as National Rivers Inventory segments and would disturb a large amount of land for construction.
FERC is seeking input on the scope of issues to be addressed in the environmental document, with comments due by October 6, 2025.
The projects would provide a combined 3.423 billion cubic feet per day of incremental transportation capacity to the southeast region.
Both projects would require various federal and federally delegated permits, including permits from the U.S. Department of the Interior and the U.S. Army Corps of Engineers.

Statistics:

3.423 billion cubic feet per day: The combined incremental transportation capacity provided by the Mississippi Crossing Project and the South System Expansion 4 Project.
199 miles: The approximate length of pipeline to be built for the Mississippi Crossing Project.
291 miles: The proposed length of pipeline loops and upgraded compressor stations for the South System Expansion 4 Project.
October 6, 2025: The deadline for comments on the environmental document.
Multiple counties in Mississippi and Alabama: The areas where the Mississippi Crossing Project would be built.
Mississippi, Alabama, and Georgia: The states where the South System Expansion 4 Project would be built.
National Rivers Inventory segments: The waterbodies and rivers that the projects would cross.
3 gas-fired compressor stations: The number of compressor stations to be built as part of the Mississippi Crossing Project.

Sources:

Tennessee Gas Pipeline Co. LLC, Houston, Texas
Southern Natural Gas Co. LLC, Birmingham, Alabama
Elba Express Co. LLC
Federal Energy Regulatory Commission
U.S. Department of the Interior National Park Service, Region 2
U.S. Environmental Protection Agency Region 4
U.S. Army Corps of Engineers, Mobile District
U.S. Army Corps of Engineers, Vicksburg District
U.S. Fish and Wildlife Service, Daphne Ecological Services Field Offices
U.S. Fish and Wildlife Service, Mississippi Ecological Services Field Offices
U.S. Department of the Interior National Park Service
Targeted News Service