A 150-foot wide pipeline right-of-way contained four natural gas pipelines with diameters of 42 inches, 30 inches, and two 36 inches. The two 36-inch pipelines crossed Big Swamp Creek in Covington County, Mississippi. The two 36-inch pipelines had a preexisting grout mat...
A 6-inch diameter natural gas pipeline crosses a canal in Miami, Florida. Sheet flow from the adjacent street and high flow events had exposed the pipeline. 3-in-1 concrete bags had been placed atop the pipeline in an effort to protect it, but the sheet flow and high flow events...