Construction impacts and notices

Find out what areas are impacted by Green Line construction, and the type of work being done.

Utility work

What is the work?
ATCO Group will be installing new natural gas infrastructure underground on 3 Avenue S.W. to alleviate future conflicts with the Green Line LRT tunnel.

What can you expect?

Conversion of 3 Avenue S.W. to single lane, one-way eastbound traffic during construction.
Removal of on-street parking on 3 Avenue between 3 Street S.W. and 2 Street S.W.
Limited full closure of 2 Street S.W. between 3 Avenue and 2 Avenue will be required.
Limited closure of northbound lane 3 Street S.W. between 3 Avenue and 2 Avenue will be required.
Sidewalk closure limited to west side of 2 Street S.W. All other sidewalks will remain.
Access to underground parking, loading, waste, and recycling services will remain.
Some tree removal may be required.
General construction noise.
Work will occur between 7 a.m. 7 p.m., with some extended hours required to avoid travel and traffic disruptions.
Construction duration is approximately five weeks.

See the detailed detour and construction map

Utility work

What is the work?
New, enhanced City-owned deep utilities and third-party shallow utility infrastructure will be installed. This will include a full closure in the intersection of Olympic Way S.E. and 12 Avenue, which will remain in place until Fall 2022, additionally lane closures along 12 Avenue S.E. between 5 Street S.E. and 6 Street S.E. and along 6 Street S.E. south of 12 Avenue S.E. will be in place. Please follow detour signage.

What can you expect?

NEW: Closure of two southernmost lanes on 12 Avenue S.E. between 5 Street S.E. and 6 Street S.E., and 6 Street S.E. south of 12 Avenue S.E. will be one-way traffic.
Closure of the intersection at Olympic Way S.E. and 12 Avenue S.E to cyclists and vehicles.
Conversion of one block of 11 Avenue S.E. to two-way travel between Olympic Way S.E. and 3 Street S.E.
Removal of on-street parking.
Some tree removal required near Olympic Way S.E. and 12 Avenue S.E.
Access to local business will remain open throughout construction.
Local traffic eastbound will be maintained via a lane reversal along 11 Avenue, leading to 5 Street S.E. which will remain open for use.
General construction noise and increased construction traffic in the area.
Intersection closure will continue into Fall 2022.
Pedestrian movements around the intersection will be maintained.
Cycle track will be closed between 3 Street and Olympic Wy. S.E. for the duration of the Beltline Downtown Utility Relocation Project. Alternate routing is provided via 3 Street and 10 Avenue S.E.

See the detailed detour and construction map

ENMAX work

What is the work?
ENMAX Power is required to relocate underground electrical infrastructure to accommodate future construction of The City of Calgary’s Green Line project. ENMAX work will occur in two phases, including electrical and construction, with varying impacts. ENMAX understands that this work may create some inconveniences, and thanks you for your understanding and cooperation as ENMAX delivers on its commitment to provide reliable power to all Calgarians.

What can you expect?

Cycle track along 12 Avenue S.E. will be closed with detour routes available; please follow signage.
Lane closures along 12 Avenue S.E. at Olympic Way S.E.; please follow traffic signage.
Sidewalk access will be maintained.
ENMAX and contractor vehicles and associated utility equipment will be onsite.
Construction barricades and/or safety fencing.
Project and/or road signage.
Noise and/or minor vibrations during construction.
A power outage is not required to facilitate this work.

See the detailed detour and construction map

Deep utility work

Utility casing installation and deep utility construction are scheduled to begin April 11 and will be underway for 10-11 weeks. This upgraded utility infrastructure will make way for Green Line LRT construction and support the future build out of Calgary’s Culture and Entertainment (C+E) District. Access to the Macdonald Avenue Bridge will remain throughout construction. Please follow detour signage when traveling in the area.

What can you expect?

Closure of two southernmost lanes on 12 Avenue S.E. between Olympic Way S.E. and 5 Street S.E.
Full block closure on 12 Avenue S.E. between 5 Street S.E. and 6 Street S.E. Two lanes will be re-opened to accommodate major events.
Closure of southern sidewalk on 12 Avenue between Olympic Way S.E. and 6 Street S.E.
On-street parking removed.
There will be general construction noise and increased construction traffic in the area.
Work will occur between 7:00 a.m. and 7:00 p.m. daily and may extend beyond 7:00 p.m. if necessary to complete certain portions of work.

See the detailed detour and construction map

Ogden - 78 Ave. S.E.

Work is planned to build an underpass at 78 Ave. S.E. to accommodate the planned street access termination at 69 St. S.E. at the CP rail crossing. The existing access will be rerouted to the underpass. This work will make way for the future Ogden station.

Station area	Location	Project type	Impact	Status	End date	Details
Station area: 2 Avenue S.W.	3 Avenue S.W. between 3 Street S.W. and 2 Street S.W.	ATCO utility construction	Impact: Lane restriction Cycle track restriction Sidewalk closure Lane closure Parking removal Noise	Begins August 22, 2022	End date: Late September 2022	Details:
Station area: 4 Street S.E.	12 Avenue and Olympic Way S.E.	Utility casing installation and shallow and deep utility relocation	Impact: Intersection Closure Conversion of 11 Avenue S.E. to two-way traffic Parking removal Tree removal Noise Cycle track closure	Intersection closure begins late July 2022	End date: Fall 2022	Details:
Station area: 4 Street S.E.	Location: 12 Avenue S.E. between 3 Street S.E. and Olympic Way S.E.	Project type: ENMAX utility relocation	Impact: Cycle track closure Lane closures Noise Vibration	Status: In progress	End date: Summer 2022	Details:
Station area: 4 Street S.E.	Location: 12 Avenue S.E. between Olympic Way and 6 Street S.E.	Project type: Utility casing and deep utility relocation	Impact: Lane closures Road closure Parking removal Sidewalk closure Noise	Status: Complete	End date: Summer 2022	Details:
Station area: Ogden	Location: 78 Avenue S.E.	Project type: Road widening and underpass project	Impact: Noise Lane restrictions and rerouting Restriction for walking/ wheeling Heavy machinery operating in the area	Status: Project is dependent on start of Phase 1 construction	End date: TBD	Details:

ENMAX work

What can you expect?

Cycle track along 12 Avenue S.E. will be closed with detour routes available; please follow signage.
Lane closures along 12 Avenue S.E. at Olympic Way S.E.; please follow traffic signage.
Sidewalk access will be maintained.
ENMAX and contractor vehicles and associated utility equipment will be onsite.
Construction barricades and/or safety fencing.
Project and/or road signage.
Noise and/or minor vibrations during construction.
A power outage is not required to facilitate this work.

See the detailed detour and construction map

Deep utility work

What can you expect?

Closure of two southernmost lanes on 12 Avenue S.E. between Olympic Way S.E. and 5 Street S.E.
Full block closure on 12 Avenue S.E. between 5 Street S.E. and 6 Street S.E. Two lanes will be re-opened to accommodate major events.
Closure of southern sidewalk on 12 Avenue between Olympic Way S.E. and 6 Street S.E.
On-street parking removed.
There will be general construction noise and increased construction traffic in the area.
Work will occur between 7:00 a.m. and 7:00 p.m. daily and may extend beyond 7:00 p.m. if necessary to complete certain portions of work.

See the detailed detour and construction map

Ogden - 78 Ave. S.E.

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Utility relocations

Learn about the Beltline and Downtown Utility Relocation Project

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