Portfolio

Suspension Bridge work

About This Project

This work involved removing a suspension pipeline bridge that crossed the Columbia River in Castlegar BC.

Location:
Castlegar BC
Value:
600.000.00

The project involved the removal of an obsolete pipeline which was over 1000’ long and suspended between two towers.  Located above a very sensitive river and needed to be removed without touching the water. This posed a large number of technical difficulties but Johnston Construction was up to the challenge. A leading BC Bridge Engineering Firm was brought onboard to work closely with Johnston Construction’s experienced in-house Project Management team and technical staff to prepare a detailed work plan. This work plan addressed all the technical challenges of the project while still maintaining the tight timeline and adhering to a strict environmental policy.

The work plan involved four major phases:

  • The removal of the gas line from the suspension structure
  • The removal of the suspension wires that spanned the Columbia River and had supported the gas line.
  • Removal of the suspension towers, wind brace towers, guy lines and all associated anchors and foundations located on the banks of the river.
  • Site cleanup and revegetation

Through close cooperation with the Owner’s team of professionals this unique and challenging project was completed to the satisfaction of everyone involved in a timely and cost effective manner.





Principal Client:
Terasen
Environmental:
Galena Environmental Ltd