Caution Updated:

  • New! Reinforcement work to the Bearspaw South Feeder Main is underway. City-wide water restrictions are in effect and indoor water conservation is needed. Learn more.

Feeder Main area construction

Bowness, Montgomery, Parkdale Feeder Main area construction

Community information about area construction impacts and replacing, reinforcing and rehabilitating the Bearspaw South Feeder Main.

Helping our community navigate construction

To protect Calgary’s drinking water system and ensure it continues to serve the city reliably into the future, we are reinforcing and replacing the Bearspaw South Feeder Main (BSFM). 

We know that construction has been disruptive and will continue to impact daily life for residents and businesses in the area. This page is here to support you by bringing together clear, up‑to‑date information about construction and related activities from Bearspaw South Feeder Main. Our goal is to help you easily find the information you need, stay informed about what’s happening nearby, and remain connected to your community throughout the project.

Contact us

If you have questions or feedback about Bearspaw South Feeder Main, we’d like to hear from you.

Email: BSFMproject@calgary.ca

Stay informed: Project mailing list

Call 311: 3-1-1

Where is construction happening?

Updated March 19, 2026

Bowness

Bowness

Location  Closure details Anticipated schedule   More information  
34 Avenue and 73 Street N.W.  
  • Bearspaw South Feeder Main Stage A Microtunnelling Shaft.
  • Heavy equipment, construction traffic, noise, dust, vibrations.  
 January 23 – December 2026 
  • Microtunnelling site for Stage A of the Bearspaw South Feeder Main replacement project. 
Westbound 16 Avenue N.W. and Sarcee Trail Exit  
  • Exit ramp closed.
  • Detour to 29 Avenue N.W.  
 February 12 – April 2026 
  • Closed for Bearspaw South Feeder Main reinforcements.  
Westbound exit from Sarcee Trail onto Westbound 16 Avenue N.W. 
  • Exit ramp closed.
  • Detour to Bowfort Road.  
 March 9 – April 2026 
  • Closed for Bearspaw South Feeder Main reinforcements.    
Westbound 16 Avenue N.W. at Sarcee Trail 
  • Lane closure.
  • Traffic flow impacts.  
 March 9 – April 2026 
  • Lane closure and traffic flow impacts for Bearspaw South Feeder Main work.  
Shouldice Athletic Park  
  • Construction vehicles and machinery staging.  
 January - TBD 
  • Staging areas for pumps and equipment for emergency deployment related to Bearspaw South Feeder Main.  

Around manholes and valve access points throughout Bowness Park, Bowness, Montgomery, Shouldice Park and Parkdale
  • Water service crews working in the area.
  • Temporary traffic impacts.  
 March 9 – April 2026 
  • Bearspaw South feeder Main draining. 
  • During this time you will see large volumes of water released into the river.  
  • Crews will remain at two locations on 33 Avenue N.W., at 8619 33 Avenue N.W., and 8015 Avenue N.W., from March 10 – 16.  

8347, 8343 & 8339 33 Avenue N.W.
  • Water service crews working in the area. Temporary traffic and parking impacts. 
 March 23 - 25 & April 6 -12 
  • Small excavation to facilitate BSFM condition assessments.
87 Street N.W. and 33 Avenue N.W.
  • Full intersection closure.
  • Parking and traffic impacts.
  • Construction vehicles and machinery in the area. 

March 19 - 25
  • Condition assessment on existing utilities.
  • Note: start date has been delayed from March 17. 

83 Street N.W. and 33 Avenue N.W.
  • Partial intersection closure. 
  • Parking and traffic impacts. 
  • Construction traffic and noise between 7a.m. - 7p.m.

March 12 - 23
  • Valve replacements to increase community water infrastructure redundancy. 

Montgomery

Montgomery

Location   Closure details  Anticipated schedule   More information
East of Monserrat Drive and North of 16 Avenue N.W. 
  • Bearspaw South Feeder Main Stage A Microtunnelling Shaft.
  • Heavy equipment, construction traffic, noise, dust, vibrations. 
 January 23 – December 2026  
  • Microtunnelling site for Stage A of the Bearspaw South Feeder Main replacement project.   
16 Avenue N.W. and 44 Street N.W.  
  • Bearspaw South Feeder Main Stage A Microtunnelling Shaft.
  • Heavy equipment, construction traffic, noise, dust, vibrations.   

January 23 – December 2026  
  • Microtunnelling site for Stage A of the Bearspaw South Feeder Main replacement project.    
Montgomery Blvd. N.W.  
  • Flood barrier removal  

January 2026 – TBD 
  • Two segments of the Bow River flood barrier along Montgomery Blvd. N.W.   
Around manholes and valve access points throughout Bowness Park, Bowness, Montgomery, Shouldice Park and Parkdale
  • Water service crews working in the area.
  • Temporary traffic impacts.  
 March 9 – April 2026 
  • Bearspaw South feeder Main draining. 
  • During this time you will see large volumes of water released into the river.  
  • Crews will remain at two locations on 33 Avenue N.W., at 8619 33 Avenue N.W., and 8015 Avenue N.W., from March 10 – 16.  
16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. 
  • Single lane eastbound closure on 16 Avenue N.W., between Monterey Avenue N.W. and Montgomery Avenue N.W. 
 March 24 – March 25, 2026 
  • Construction on the final microtunneling shaft will begin March 24, 2026.
  • Construction in the area will continue until the new pipe is completed in December 2026. 
16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. 
  • Both eastbound lanes on 16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. will be closed. 
  • Single lane traffic on 16 Avenue N.W. will be maintained in both directions.   
 April 1 – April 15, 2026 
  • Construction on the final microtunneling shaft will begin March 24, 2026.
  • Construction in the area will continue until the new pipe is completed in December 2026.   
16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. 
  • For two months, beginning in May, both eastbound lanes of 16 Avenue N.W., between Monterey Avenue N.W. and Montgomery Avenue N.W. will be closed.
  • Single lane traffic will be maintained in both directions.  
 May and June 2026  
  • Construction on the final microtunneling shaft will begin March 24, 2026.
  • Construction in the area will continue until the new pipe is completed in December 2026.   
16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. 
  • Single lane eastbound closure on 16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. 
 July – December 2026 
  • Construction on the final microtunneling shaft will begin March 24, 2026.
  • Construction in the area will continue until the new pipe is completed in December 2026.   

Additional construction information

  • A construction work area will be set up in the parking lot on the south side of 16 Avenue N.W. between Monterey Avenue N.W. and Montgomery Avenue N.W. 
  • Monterey Avenue N.W. and Montgomery Avenue N.W. will both remain open with access to 16 Avenue N.W.

Parkdale

Parkdale

Location   Closure details   Anticipated schedule  More information  
Edworthy Park Parking Lot  
  • Bearspaw South Feeder Main Stage A Microtunnelling Shaft.
  • Heavy equipment, construction traffic, noise, dust, vibrations.   

January 23 – December 2026
  • Microtunnelling site for Stage A of the Bearspaw South Feeder Main replacement project.   
Point Mckay Park  
  • Bearspaw South Feeder Main Stage A Microtunnelling Shaft.
  • Heavy equipment, construction traffic, noise, dust, vibrations.     

January 23 – December 2026
  • Microtunnelling site for Stage A of the Bearspaw South Feeder Main replacement project.     
Point Mckay Park  
  • 24/7 work.  
  • Bearspaw South Feeder Main Reinforcements.
  • Heavy equipment, construction traffic, noise, dust, vibrations.       

March 9 – April 2026
  • Bearspaw South Feeder Main Reinforcements.
  • 24/7 construction.  
Douglas Fir Trail & South Parking lot.  
  • Pathway closure, construction traffic and noise.  
 November 2025 – December 2026  
  • Slope stabilization work. 
Edworthy Park Bathrooms  
  • Closed for construction. 
 October 2025 – October 2026  
  • Closed for upgrades.
  • Porta potties available at the park.   

Single lane closure on 16th Ave Eastbound, starting at 43rd Street N.W. to the construction access to Point Mackay Park.   
  • Single Lane closure EB 16th Ave.  
 March 9 – April 2026  
  • Bearspaw South Feeder Main Reinforcements.
  • 24/7 constructions.
  • Flaggers will be onsite.  
Around manholes and valve access points throughout Bowness Park, Bowness, Montgomery, Shouldice Park and Parkdale
  • Water service crews working in the area.
  • Temporary traffic impacts.  
 March 9 – April 2026 
  • Bearspaw South feeder Main draining. 
  • During this time you will see large volumes of water released into the river.  
  • Crews will remain at two locations on 33 Avenue N.W., at 8619 33 Avenue N.W., and 8015 Avenue N.W., from March 10 – 16.  

Construction updates

Construction notices

Bearspaw South Feeder Main Newsletter

BSFM Community Resource Centre

Chat directly with city staff about the project and get support during construction.  The Community Resource Centre will serve residents of Bowness, Montgomery and Parkdale affected by the Bearspaw South Feeder Main repairs.

Location: Bowness Community Association: 7904 43 Ave N.W. 

Hours:

  • Monday and Wednesday, 9 a.m. – 5 p.m.  
  • Tuesday and Thursday, 10 a.m. – 7 p.m.  

Available supports:

  • Residents can connect to social and emotional support services.
  • Listen to residents’ concerns and experiences, answer questions about the project, and help connect people with available resources, while ensuring community feedback is shared with the project team and partners to inform future plans. 
  • Give information about upcoming outreach, community engagement and special events.

Community Information Session presentation - March 2026

For those who were unable to join us at our recent community information sessions, we encourage you to watch this video to learn more. This presentation provides a brief background on the Bearspaw South Feeder Main, upcoming work and what to expect, and available community resources.

bowness-community-centre

Community mitigation

Several mitigation measures are in place to help protect communities in the event of a feeder main failure. 

These include flood barrier adjustments along the Bow River, temporary pathway barriers with a ramp to maintain access, a staging area at Shouldice Athletic Park for pumps and equipment, and ongoing maintenance of catch basins. 

The City continues to evaluate additional mitigation options and will communicate updates as work progresses.

Measures in place to protect community

  • Two segments of the Bow River flood barrier along Montgomery Blvd. N.W. were removed so water can flow direct into the river. 
  • Temporary barriers have been installed along the Bow River pathway next to Parkdale Blvd. N.W.
  • A pathway ramp is being built over the barrier at Parkdale Blvd and 32nd Street N.W. to restore access to the Bow River Pathway.
    • A staging area is being set up in Shouldice Athletic Park to house pumps and equipment which can be quickly deployed if there is a release.
    • Outflows to the river have been opened and manhole covers replaced in several areas. 
  • We will continue to clear catch basins across the community.

Current road closures

We appreciate your patience as construction moves forward. We are mindful of how our work impacts traffic in the community and want to keep you informed of detours and delays so you can plan ahead. The maps below highlight what to expect, and the latest updates are always available on The City's traffic map.

16 Avenue N.W. and Sarcee Trail

83 Street N.W. and 33 Avenue N.W.

16 Avenue N.W. and 43 Street N.W.

Bearspaw South Feeder Main resources

Related information

This information has no legal status and cannot be used as an official interpretation of the various bylaws, codes and regulations currently in effect. The City of Calgary accepts no responsibility to persons relying solely on this information. Web pages are updated periodically. ​