Pipeline Construction Update

Construction Methods

Energy Transfer continues to construct the Mariner East 2 and 2X pipelines in West Whiteland Township through their contractor, Michels. Construction is not expected to be completed until some time in 2021. 

Where you see large sound walls around pipeline construction sites, Energy Transfer is installing pipes deep underground via horizontal directional drilling (HDD). 

Where HDD does not work because of geology or other factors, Energy Transfer is opening trenches and installing the pipe where they can and boring underneath other areas, such as roads and streams, where they cannot. 

Mariner East 2 and 2X Construction Update

(updated February 9, 2021)

Shoen Road north to Devon Road in Uwchlan Township - Construction method: HDD; drill site at Whiteland West Apartments 

Status: After being shut down since October 2019, Energy Transfer resumed drilling at the Shoen Road drill site in late July. They were temporarily shut down again in mid-August but resumed drilling again.  The 1st pipeline was installed at the end of September 2020.  Installation of the 2nd pipeline is under review by DEP.

Shoen Road south to Swedesford Road - Construction method: open trench, except for boring roads and stream;  Status: DONE

Swedesford Road to Laborers Training Center - Construction method: open trench, except for bores under wetlands, woods and Lincoln Highway 

Status: Both pipelines are installed under Swedesford Road to just past the library and from Laborers to Briar Road. Work is underway to complete the remaining work in the middle of this segment, which consists of boring under wetlands and the remaining open trench work between the bores.  The Township authorized Energy Transfer to haul away water from the area around the bore bit on Sundays (when construction work is otherwise prohibited by ordinance), if necessary, between 10 am-4 pm.  Pipeline construction is expected to be completed in the spring.

Laborers Training Center to Exton Station/Stonegate Court - Construction method: HDD for the 16”; open trench and bores for the 20” 

Status: The 16” pipe was installed via HDD and led to the subsidence by Lisa Drive. ET applied for a major modification of their DEP permit to allow for open trench construction for the 20” pipe, except for under the railroad and 30 bypass where they would bore. The permit was issued on Sept. 22, 2020.  Prep work occurred in late October, including surveying, potholing (to double check the locations of underground utilities) and tree removal.  Open cut construction is starting in mid-February and is expected to be done by the end of March.  No word yet when the bore will start.

Stonegate Court to Ship/Boot Road (Corner Park Apartments) - Construction method: HDD; drill site by Corner Park Apartments;  Status: DONE

Ship/Boot Road to 202 drill site in West Goshen Township - Construction method: HDD; drill site by Corner Park Apartments;  Status: DONE