TOP100 2024 Report - Report - Page 68
67
REMEDIATION
Giant Mine
Remediation Project
$934 MILLION
Between 1948 and 2004, operations at the Giant Mine site grew to encompass
roughly 900 hectares, including several ponds and small lakes. In 1999, the former
operator entered receivership and the Government of Canada, and the Government of
Northwest Territories became responsible for the site. Mining operations continued until
2004. Several environmental and site remediation needs were identified. This included
cleaning up the 237,000 tonnes of arsenic trioxide dust left behind in underground
chambers and 16 million tonnes of tailings, open pits, debris, and site infrastructure.
Today, the project’s goals are to: minimize public health and safety risks; minimize
the release of contaminants from the site to the surrounding environment; remediate
the site in a manner that instills public confidence; and implement a remediation
approach that is cost-effective and robust.
2023 Rank: 67
Location: Yellowknife, N.W.T.
Owner: The Government of Canada (led by Crown-Indigenous Relations and
Northern Affairs Canada with support from Public Service and Procurement
Canada) and the Government of the Northwest Territories (led by the Department
of Environment and Natural Resources).
Construction Manager: Parsons Inc.
Design Engineer: AECOM; Golder-a WSP company (multi-disciplinary consulting
services/general and civil design)
Environmental Services: Dillon Consulting; SLR; Blumetric
Other Key Players: SRK Consulting; Wood E&I (WSP) (consulting engineer/risk
advisor); Hatch; KPMG (commercial advisor); SRK Consulting; Arcadis-IBI Group;
Tiree/Colliers Project Leaders (management consultant); McElhanney; Englobe;
Stratos; Turner & Townsend (cost consultant)
Funding: Public
• Federal: $903.5 million
Substantial Completion: 2025 to 2038
NEW
Built in the 1940s, the John Hart Dam is about 32
metres tall and more than 800 metres long. The project
work will include upgrades to the earthfill and concrete
sections of the dam; creating an overflow spillway under
the road deck near the spillway; and replacing the three
spillway gates and related works. In the fall of 2023
concrete work on a spillway section of the dam, as well
as on a water seepage barrier. A narrow trench will be
excavated, about 20 metres deep and concrete panels
will be placed within the hollow to act as an additional
water seepage barrier.
Project Owner: BC Hydro
Project Location: Campbell River, B.C.
Civil Work Contract (Phase 1): Aecon-EBC General Partnership (AEGP)
Consulting Engineer: AECOM
Other Key Players: EY (risk advisor); GeoVerra (site surveyor)
Legal: Borden Ladner Gervais
Other Key Players: Hatch
Substantial Completion: 2030
BC HYDRO
68
HYDROELECTRIC
John Hart Dam Seismic
Upgrade Project
$923 MILLION
NEW
Oneida Energy
Storage Project
$900 MILLION
Oneida Energy Storage Limited
Partnership (Oneida LP) executed
an agreement with the Independent Electricity System Operator
(IESO) for the Oneida Energy
Storage Project to deliver a 250
megawatt / 1,000 megawatt-hour
energy storage facility. The project
is the largest of its kind in Canada
and amongst the largest in the
world. It will provide a gigawatt-hour of much needed capacity to the Ontario grid,
while prioritizing local Indigenous partnerships and environmental benefits. The scope
68 RENEW CANADA – TOP100 2024
Location: Nanticoke, Ont.
Owner: Oneida LP (Consortium: Northland Power; Six Nations of the Grand River
Development Corporation; NRStor; Aecon Concessions)
Engineering, Procurement and Construction (EPC) contract: Aecon
Battery Supplier: Tesla
Legal: Borden Ladner Gervais (Northland Power)
Funding: Private/Public
• Canada Infrastructure Bank: $535 million
• Natural Resources Canada: $50 million
Substantial Completion: 2025
of work includes designing the facility, procuring balance of plant facility equipment, installing equipment foundations, electrical houses,
battery transformers, switch gears and underground cabling, as well
as constructing a high voltage substation, and commissioning and
startup activities. Construction is expected to commence in the second quarter of
2023, with anticipated completion in 2025.
TOP100PROJECTS.CA
AECON
69
TRANSMISSION
