Project schedule and activities
We're starting the next stage of work in approved rights-of-way in Delta, Richmond and on Deas Island [PDF, 58 KB] to prepare for the relocation of our transmission line [PDF, 276 KB] out of the George Massey Tunnel.
We started on-site vegetation clearing work in Richmond, Delta and on Deas Island in November 2016 to prepare for the relocation of our transmission line out of the George Massey Tunnel. As part of this work, we're removing vegetation in approved rights-of-way required for the construction of the project. This work was required for worker safety, infrastructure security, installation of temporary and permanent infrastructure, and site access.
Starting in January 2017, we'll begin the next stage of work in approved rights-of-way in Richmond and on Deas Island to prepare for the relocation of our transmission line out of the George Massey Tunnel. In this stage we'll relocate existing infrastructure called a "pothead" that is needed to transition transmission lines from overhead to underground. For the existing transmission line running through the George Massey Tunnel, the pothead structures are located at each end of the tunnel, and will be temporarily relocated before the start of bridge construction activities by the Ministry of Transportation and Infrastructure. This work follows the vegetation clearing work that began in November 2016.
Ground improvements and foundation works
Starting in April 2017, crews will install the foundations for the new transmission structures. This work will improve ground stability and ensure we meet seismic requirements for the installation of the structures for an overhead transmission line.
Monopole relocation along Highway 99
The overhead transmission line and poles along Highway 99, between Steveston Highway in Richmond and the Highway 17A Interchange in Delta, will be moved between late 2017 to summer 2018. This can be done mostly within existing provincial highway and BC Hydro rights-of-way.
The replacement poles will be similar to the existing steel poles that are currently in place. See the map illustrating sections of existing BC Hydro transmission line [PDF, 276 KB] that will be moved.
Steel lattice tower construction and stringing
In 2018 and 2019, steel lattice towers will be constructed for the overhead transmission line and stringing will take place. Lattice towers will be located on Deas Island and in Richmond, to the west of the new bridge.
New transmission line in service
The new transmission line is forecast to be in service by fall 2019. This transmission line is a critical part of the transmission network that supplies power to tens of thousands of customers in Richmond, Delta and other parts of the Lower Mainland.