• 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 50-foot wide pipeline right-of-way contained an 18-inch refined product pipeline. The 18-inch pipeline crosses Dyer Ditch between a railroad corridor and a residential area in Lake County, Indiana. Downcutting of the creek bed caused the banks to become steep and unstable...

  • 20-inch products pipeline runs parallel to a railroad track in Imperial County, California. Both the pipeline and the railroad are crossed by the 250-foot wide Mammoth Wash. Flash floods caused lateral migration and eroded 3 to 6 feet of the right-descending bank.

  • An 8-inch natural gas pipeline crosses Caddo Creek in Carter County, Oklahoma. The bed and banks of the creek are composed of clay and sand and the banks are well vegetated. Heavy rain caused lateral migration and head cutting that eroded the right descending bank.