highway 8 & 101 street transmission line 7.82 … · highway 8 & 101 street transmission...

HIGHWAY 8 & 101 STREET TRANSMISSION LINE 7.82 RELOCATION PROJECT UPDATE

PROJECT OVERVIEW

In March 2019, ENMAX began its participant involvement program for the Highway 8 Project and 101 Street Project. Alberta Transportation directed ENMAX Power Corporation (ENMAX) to relocate its existing 138 kV 7.82L transmission line (existing line) to accommodate the construction of the West Calgary Ring Road. The proposed relocation will be effected by two separate projects: the relocation of the existing line running south along Highway 8 and the relocation of the existing line running parallel to 101 Street SW.

As part of the participant involvement program for the proposed projects, ENMAX received additional information and feedback from Alberta Transportation and other stakeholders. ENMAX reevaluated and made refinements to the two route alternatives it originally identified in March 2019, and has identified a potential third route for the Highway 8 Project. ENMAX does not propose any refinements to the 101 Street Project.

PROJECT DETAILS

All potential routes for both projects remain within the designated Transportation Utility Corridor and will continue to utilize a single circuit, 138 kV transmission line, the same as the existing line.

OPEN HOUSES

ENMAX representatives will be available at four open house sessions to share information, gather your input and address any questions or concerns you may have on the proposed transmission projects.

We hope to see you there.

Date: Thursday, June 20, 2019 Location: Elbow Springs Golf Club, Mountain View Room, 240086 Lott Creek Dr SW Time: 11 a.m. - 3 p.m. & 4 p.m. - 8 p.m.

Date: Tuesday, June 25, 2019 Location: Elbow Springs Golf Club, Mountain View Room, 240086 Lott Creek Dr SW Time: 11 a.m. - 3 p.m. & 4 p.m. - 8 p.m.

STAKEHOLDER NEWSLETTER | JUNE 2019

PROJECT DETAILS CONTINUED

Highway 8 Project

ENMAX has identified three potential routes for the Highway 8 Project, all of which can be seen on the map enclosed. The above maps show the two route alternatives originally identified in March 2019.

The potential routes are as follows:

Refined South Route: This refined route would begin north of Discovery Ridge Heights SW behind the 200 block on Discovery Ridge Way SW and run west, until the line crosses Highway 8 where it reconnects to the existing alignment along 101 Street SW. The refined South Route is approximately 10 metres north of the South Route originally identified.

Refined North Route: This refined route would begin at 69 Street SW and continue west, paralleling the north side of Highway 8, then parallel Lower Springbank Road SW until the line heads west where it reconnects to the existing alignment along 101 Street SW. The refined North Route is approximately 7 to 40 metres (depending on the alignment at particular locations) south of the North Route originally identified.

South-Central Route: This newly-identified route would begin north of Discovery Ridge Hill SW near the 200 block on Discovery Ridge Way SW and run west, until the line crosses Highway 8 where it reconnects to the existing alignment along 101 Street SW. This route was developed as the result of further information provided by Alberta Transportation.

101 Street Project

ENMAX is not proposing any changes to the potential routing for the 101 Street Project. As described in March 2019, ENMAX is proposing to relocate the portion of the existing line that currently parallels 101 Street SW. ENMAX is proposing to move a portion of the line further west, closer to the boundary of the Transmission Utility Corridor. The proposed section of the existing line to be relocated is located north of Lower Springbank Road. The proposed relocation would connect with the existing line south of 14 Avenue SW.

HWY 8

ELBOW RIVER

69 ST

SW

85 ST

SW

GLENMORE TR SW

PINEC

ONE

LN

PINEBROOK WY

LOTT CREEK DR

LOWER SPRINGBANK RD

PINETREEDR

SPRINGBANKHILL

DISCOVERYRIDGE SIGNAL

HILL

DISCOVERY RIDGE WY SW

SPRINGBLUFF BV SW

SPRINGBANK BV SW

STMORITZ DR SW

ELMO

NT DR SW

DISCOVERY RIDGEHL SW

DISC OVERY DR SW

26 AV SW

85ST

SW

FORTRESS DR SW

DISCOVERY RIDGE BV SW

ELKTON DR SW

77 ST

SW

SPRINGBANKDR SW

TSUU T'INANATION 145

Map Legend

0 500250mTransportation Utility Corridor

Highway 8 Transmission Line 7.82 Relocation Project - South Route

Previously Proposed RouteExisting Transmission Line

Proposed Transmission Line - Refined South Route OptionTransmission Pole



HWY 8

ELBOW RIVER

69 ST

SW

85 S

T SW

GLENMORE TR SW

PINEC

ONE

LN

PINEBROOK WY

LOTT CREEK DR

LOWER SPRINGBANK RD

PINETREEDR

SPRINGBANKHILL

DISCOVERYRIDGE SIGNAL

HILL

DISCOVERY RIDGE WY SW

SPRINGBLUFF BV SW

SPRINGBANK BV SW

STMORITZ DR SW

ELMO

NT DR SW

DISCOVERY RIDGEHL SW

DISC OVERY DR SW

26 AV SW

85ST

SW

FORTRESS DR SW

DISCOVERY RIDGE BV SW

ELKTON DR SW

77 S

T SW

SPRINGBANKDR

SW

TSUU T'INANATION 145

Map Legend

0 500250mTransportation Utility Corridor

Highway 8 Transmission Line 7.82 Relocation Project - North Route

Previously Proposed RouteExisting Transmission Line

Proposed Transmission Line - Refined North Route OptionTransmission Pole

TRANSMISSION STRUCTURES

The transmission structures for the existing line are a combination of wood poles and self-supporting steel monopoles which range in height from 17 to 26 metres. Subject to detailed design, the new structures for both projects are expected to be self-supporting steel monopoles, except for two steel H-Frame structures proposed for the South-Central Route. The new structures are expected to range in height from 17 to 33 metres. The increase in height is required to accommodate the West Calgary Ring Road and associated infrastructure.

The below table shows estimated structure heights, project distances and number of structures per route. Subject to approvals being granted by the Alberta Utilities Commission, ENMAX will conduct the detailed design for the project.



Example of the proposed steel H-Frame

PROPOSED ROUTE

NUMBER OF STRUCTURES

PROJECT DISTANCE

STRUCTURE HEIGHTS

Highway 8Refined South

15 1.8 Kilometers 18-28 Metres

Highway 8Refined North


Highway 8South-Central


101 Street 19 2 Kilometers 17-25 Metres

PROPOSED SCHEDULE

ENMAX plans to file the Facility Application(s) with the Alberta Utilities Commission by late Q3 2019. Subject to approvals being granted, construction is scheduled to begin in Q1 2020 with an expected in-service date by early 2021.

Example of the proposed self-supporting steel monopoles

COMMITMENT TO COMMUNITY

ENMAX is committed to being a responsible corporate neighbour in the community. This commitment includes providing timely and meaningful engagement with stakeholders about these projects.

We have developed a public involvement program to provide opportunities for area residents, occupants and landowners to be informed about these proposals and to engage with ENMAX in dialogue from the planning phase through construction.

ABOUT ENMAX CORPORATION

ENMAX Corporation, through its subsidiaries, makes, moves and sells electricity to residential, small business and large commercial customers and is headquartered in Calgary, Alberta, with offices in Edmonton. ENMAX Power Corporation owns and operates transmission and distribution infrastructure in Calgary while ENMAX Energy Corporation owns diverse electricity generation facilities throughout the province.

MORE INFORMATION

Your input is very valuable to us. We will work with you to ensure you get answers to your questions and your concerns are understood. For more information about the proposed transmission line, please contact:

ENMAX POWER CORPORATION

Phone: 403-514-1471 E-mail: [email protected]: enmax.com/highway8-101

To learn more about the regulatory process, please contact:

ALBERTA UTILITIES COMMISSION

Phone: 403-310-4282 Email: [email protected] Website: auc.ab.ca

For more than 100 years, ENMAX has delivered safe and reliable electricity in Calgary. Moving electricity from the point where it is generated to our customers’ homes and businesses is split into two areas: transmission and distribution.

PROVIDING YOUR INPUT

ENMAX will file the application(s) with the Alberta Utilities Commission (AUC) for approval of the proposed transmission line relocations. The AUC will review the application through a process in which stakeholders can participate.

To learn more about the AUC process and how you can become involved, please refer to the brochure included in this package titled, “Public involvement in a proposed utility development”



highway 8 & 101 street transmission line 7.82 … · highway 8 & 101 street transmission...

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