Mariner East Pipeline Updates

Cumberland, York and Dauphin counties: Mainline construction of the 20-inch pipeline is nearly complete, and construction crews are completing pipeline tie-in work connecting completed road bores and HDDs. Since February, crews have completed pullbacks of the 20-inch pipeline at seven locations in this project area, including the Susquehanna River drill – a major milestone as the
longest HDD on the project. Road bores for the 20-inch and 16-inch pipelines are nearing completion as well. Remaining work includes completing pipeline tie-ins, HDDs, and grading and seeding the ROW where the 20-inch and 16-inch pipelines are installed.


Additional updates and information can be found in the link below: