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In January 2019, we sent out a project package for the Power System Relocations to Accommodate the CapitalCare Norwood Redevelopment Project. At this time we would like to provide you with an update on the project.

Project update

Recently, EPCOR received approval from the Alberta Utilities Commission (AUC) to alter and operate the existing underground 72 kV transmission line. The AUC approval was issued on April 26, 2019, by Decision 24364-D01-2019.

Next steps

EPCOR is preparing for the 72 kV transmission line construction phase of the project. Construction is scheduled to commence in late July/early August 2019 and planned for completion in December 2019. Please note the timing and details may be adjusted as activities are finalized.

Construction of the distribution line is ongoing and is planned for completion in August 2019.

Project overview

As part of the CapitalCare Norwood Redevelopment Project, EPCOR must relocate electric transmission and distribution facilities, and fibre optic cables in and around the proposed expansion.

This work must occur in the early stages of the redevelopment process to ensure that electricity is available throughout construction and in place for the expansion. This will include installing new poles, wires and equipment in the area, de-energizing and moving existing assets, and removing some power system infrastructure that will no longer be needed.

Project timeline
Construction details

EPCOR utility work required

Most of the work required will occur in the construction area of the proposed CapitalCare Norwood expansion. Exceptions are noted below.

Relocate a 72 kV power transmission line

  • Install a new 72 kV underground transmission power line around the perimeter of the proposed CapitalCare Norwood project;
  • Install a new man hole on 105 Street, north of 112 Avenue;
  • De-energize the existing 72 kV underground transmission line located on the east side of 105 Street, between 111 Avenue and 112 Avenue; and
  • Remove the de-energized underground transmission facilities on the north side of the project site. Underground facilities on the south side of the project will be left-in-place to accommodate Alberta Infrastructure's current and future landscaping plans.

This work will require the construction of two temporary freeze pits in the late summer/early fall of 2019.  One freeze pit will be located on 105 Street, between 112 Avenue and 113 Avenue; the other west of the Royal Alexandra Renal Centre.

Remove and relocate power distribution lines

  • Remove the distribution power poles, wires and associated equipment in the lane west of 105 Street, between 111 Avenue and 112 Avenue;
  • Install a new 15 kV underground distribution duct line around the perimeter of the proposed CapitalCare Norwood project;
  • De-energize the existing 15 kV underground distribution duct line located below 105 Street, between 111 Avenue and 112 Avenue; and
  • Remove the de-energized underground distribution facilities in the area of the project site.

Relocate EPCOR fibre optic cables

  • Install new fibre optic cables in the new distribution duct line located around the perimeter of the proposed CapitalCare Norwood project;
  • Disconnect the fibre optic cables located in the distribution duct line located below 105 Street, between 111 Avenue and 112 Avenue; and
  • Remove the fibre optic cable at the same time the decommissioned distribution duct line is removed.

Power system upgrades and pole replacements

  • Install one new temporary power service north of 112 Avenue to ensure power is available during the construction period; 
  • Upgrade distribution power poles and facilities located on road rights-of-way on the north side of 112 Avenue, between 103 Street and 106 Street; and
  • Relocate existing and install new power system equipment, as required, at the proposed CapitalCare Norwood site to provide electrical services to the new facility and to accommodate for the increased demand for power.

Customers directly impacted by power system upgrades or installation of temporary facilities will be contacted by EPCOR in advance of work being conducted.

Water and drainage

Water and drainage services near the proposed CapitalCare Norwood site will be removed, installed and relocated as needed to accommodate the expansion. At this time, this work is expected to be contained to the construction area. Disruptions to water or drainage services may be required to allow crews to safely complete this work. Customers affected by a disruption in service will be notified by EPCOR in advance.

Internet, phone and cable

Please note that EPCOR is not responsible for internet, telephone or cable services. While we are working to coordinate utility relocations with other utility services providers to limit service interruptions to residents and businesses in the area, we suggest customers speak with their internet, phone and cable providers to obtain information about any scheduled service interruptions in the area.

Map
Construction impacts

What you can expect from construction

Most of EPCOR's work will be limited to the construction area of the new CapitalCare Norwood expansion. Here's what you can expect to see and hear from that work.

If you are a resident of 105 Street, between 112 Avenue and 113 Avenue, please refer to information about the Freeze Pit that will be required in the area for six weeks in the late summer/early fall of 2019.

Hours of work

EPCOR crews will be working Mondays to Fridays, 7 a.m. to 5 p.m.; however, occasional evening and weekend work may be required.

Power outages

Some planned power outages will be required to allow crews to safely complete the required work. Customers affected by a scheduled power outage will be notified in advance with details about the outage date and time.

Construction equipment

Multiple EPCOR crews will be working in the neighbourhood while utilities are being relocated. You can expect to see company and contractor trucks, diggers, hydrovacs and cable reels in the area.

We are committed to public and employee safety. All construction activities will be in accordance with City of Edmonton bylaws, Occupational Health & Safety requirements, and EPCOR's strict health, safety and environment procedures and guidelines.

Construction noise

This work will create typical noise associated with construction. We will take measures to ensure we comply with the City of Edmonton's Community Standards Bylaw for Noise Control. Should it be necessary to temporarily exceed acceptable noise levels, we will work with the City of Edmonton to obtain the necessary permits.

Freeze pits

Transmission lines buried underground are located in a pipe filled with insulating fluid to manage heat and insulate the power cables. When an underground transmission power line needs to be cut, the insulating fluid must be frozen. To accomplish this, a freeze pit is dug adjacent to the location of the pipe that needs to be cut. A heat exchanger coil is wrapped around the transmission line and liquid nitrogen is pumped through the heat exchanger coil, freezing the insulating fluid in the pipe around the power cables. This allows the transmission line to be cut and handled safely.

The following work is required for each freeze pit:

  • The excavation of a hole approximately 3 m wide x 3 m long x 3 m deep to access the transmission line;

  • A work area 3 m wide x 3 m long located directly beside the excavation to place equipment used to freeze the cable; and

  • The continuous monitoring of the freeze pit for approximately six weeks to ensure the cable freeze remains intact around the transmission line. This process requires an EPCOR representative and vehicle to be on site 24 hours-a-day, 7 days-a-week. At times, additional lighting and the use of a small generator may also be required.

Required freeze pit locations:

  • East side of 105 Street - north of 112 Avenue

  • Green space west of Royal Alexandra Renal Centre

Freeze pit impacts

What you can expect to see and hear around the freeze pits

Lane closures and parking restrictions

  • 105 Street, north of 112 Avenue, will be reduced to one lane in the area directly adjacent to the freeze pit.
  • No parking will be permitted in front of homes on the east and west sides of 105 Street where the freeze pit is located. Parking will remain available on 105 Street north of the freeze pit.

Fencing

  • The work area around the freeze pits will be fenced off and monitored by an EPCOR representative at all times. The work area will be maintained in a safe and secure manner and performed in accordance with City of Edmonton bylaws, Occupational Health and Safety requirements, and EPCOR's strict health, safety and environment procedures and guidelines.

Noise

  • The generator used in the freeze pit will be a 'whisper quiet' unit and produce sound levels similar to background noise in an office.

Ground disturbance

  • Roads, curbs and pavement removed during the excavation of each freeze pit will be restored when the freeze pit is no longer required and when weather permits landscaping to be completed.
Regulatory process

About the Alberta Utilities Commission (AUC)

Alberta’s electric utilities are regulated by the AUC. The AUC is an independent quasi-judicial agency that ensures that the delivery of Alberta’s utility service takes place in a manner that is fair, responsible and in the public’s interest. For more information about the AUC, please visit the AUC’s website.

For more information about the regulatory process and how you can participate, please contact:

Alberta Utilities Commission (AUC)
Toll-free: 310-0000 
Phone: (780) 427-4903
AUC booklet: Public involvement in a proposed utility development