Trans Mountain Corp. recently completed the longest trenchless crossing in the region – more than 1,300 meters of pipe was pulled underneath Calgary Trail, a busy and critical intersection in the City of Edmonton. The crossing traverses seven roadways, on-ramps and off-ramps, as well as the CP Railway mainline.

Eleven of 14 horizontal directional drills planned for the region have now been completed, along with 51 of the 59 horizontal directional bores. Crews are busy preparing worksites for the remaining trenchless crossings.

Trenchless crossings are used to safely cross underneath watercourses, railways, major roads, sensitive environmental areas, and in areas with the restricted workspace. They greatly minimize the impact on normal daily activities, traffic, and minimize or eliminate ground disturbance. 

Mainline welding is complete and crews are currently working on tie-ins, inspections, right-of-way clean-up, and site reclamation. Reclamation – the process of returning the area back to its original state – includes laying topsoil, grading, and seeding. Where work is complete, access mats are being removed, cleaned, and distributed to other regions.

Source: Trans Mountain Corporation

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