as a water cut-off for the project. HFDI completed the
sheet pile and steelwork installation while Southwest
Contracting, Ltd., installed the anchors.
The cost of the entire sewer and water project is estimated
at $1.3 billion. The project tab is being shared by all
Metro Vancouver member jurisdictions that are part of
the Greater Vancouver Sewerage and Drainage District.
The pump station and adjacent Sanitary Sewer Overflow
tank are projected to cost about $70 million at buildout.
Katzie First Nation artist, Trenton Pierre, who has
earned praise for local murals, has been awarded the contract
to create a full-wall design on the south wall of the
storage tank.
Community input for the project was ongoing and
inclusive. Reports show that consultations took place in a
series of three open houses held between 2017 and 2019,
and project managers listened. For instance, to minimize
the impact of traffic, noise and dust during construction,
large truck traffic was limited to between 9 a.m. and
3 p.m., and there were minimal road closures.
“The Northwest Langley Wastewater Treatment Plant
currently provides wastewater treatment to 30,000
people in Langley and is being expanded to also serve
the communities of Maple Ridge and Pitt Meadows – up
to 230,000 people,” said Cheryl Nelms, general manager
of project delivery, Metro Vancouver. “The project
will help meet the needs of the growing population,
strengthen the system’s resilience to seismic events and
the effects of climate change, reduce odours, recover
energy and resources from wastewater and meet updated
federal regulations.”
According to Alexandre Alves, project manager at
HFDI, the project consisted of the design, supply and
installation of a temporary excavation shoring system to
allow the installation of the future Golden Ears Pump
Station. Shoring consisted of a driven sheet pile system
braced with a combination of internal bracing, tie-rods and
tie-backs to a maximum excavation depth of 11 metres. A
total of 278 pairs of sheets were installed with lengths up
to 80 feet. The shoring system also acted as a water cut-off.
PROJECT SPOTLIGHT
Aerial view of sheet pile installation at Golden Ears project, August 2020
24 Issue 4 2021 www.pilingcanada.ca
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