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 September 29, 2021)

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

Status: The 1st pipeline was installed at the end of September 2020.  Installation of the 2nd pipeline is almost done via HDD and is expected to be completed in October 2021.

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 almost done to complete the remaining work in the middle, under wetlands and Valley Creek.  The casing is in place; the pipelines still need to be installed in the casing and connected to the adjacent segments, followed by property restoration. The Township authorized Energy Transfer to haul away water from the area around the bore pits on Sundays (when construction work is otherwise prohibited by ordinance), if necessary, between 10 am-4 pm. 

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 tracks and 30 bypass where they would bore. The permit was issued on Sept. 22, 2020.  Open cut construction was completed in spring 2021. The bore under the railroad tracks and bypass is underway.  Work is expected to be completed fall 2021.

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