FERC has approved TransCanada’s request to to cross Interstate 77 at milepost 123.7 along the Mountaineer XPress Project using a horizontal directional drill (HDD), rather than a bore. Under the terms of the approval, TransCanada may also operate this HDD from 7 a.m. to 7 p.m., seven days per week. Additionally, pullback HDD activities are authorized for 24-hours, with the exception of methods to release a stuck pipe, such as hydraulic rams, which may cause elevated noise impacts at nearby homes.
The Mountaineer XPress Project is a 170-mile pipeline that, once completed, will deliver approximately 2.6 Bcf/d of gas to the TCO Pool and Leach markets on the Columbia Gas Transmission System. It includes the construction of the following:
- About 164.5 miles of new 36-inch-diameter natural gas pipeline from Marshall County to Cabell County (MXP-100)
- About 6.0 miles of new 24-inch-diameter natural gas pipeline in Doddridge County (MXP-200)
- Three new compressor stations in Doddridge, Calhoun, and Jackson Counties (one that also includes a regulator station)
- Two new regulating stations in Jackson and Cabell Counties
- About 296 feet of new, 10-inch-diameter natural gas pipeline at the Ripley Regulator Station to tie Columbia Gas’ existing X59M1 pipeline into the MXP-100 pipeline in Jackson County
- An approximately 0.4-mile-long replacement segment of 30-inch-diameter natural gas pipeline in Cabell County
- Upgrades to one existing compressor station (Wayne County) and two compressor stations (Marshall and Kanawha Counties) that are approved or pending, respectively, under separate FERC proceedings
- Related facilities in various West Virginia counties
The project is expected to be placed in service in November 2018.