South System Expansion 4 (SSE4) and Mississippi Crossing Pipelines

planned

Two pipelines, South System Expansion 4 (SSE4) and the Mississippi Crossing, will add about 500 miles of pipeline and increase natural gas transportation capacity by 1.4 billion cubic feet per day across Mississippi, Alabama, and Georgia. The pipelines will impact over 2,000 water bodies, including rivers, streams, and ponds, with significant environmental concerns especially for the Ogeechee River in Georgia. The Ogeechee River crossing will use a more disruptive pneumatic hammering method instead of horizontal directional drilling (HDD).