Caution | Outdoor water restrictions in effect

Stage 3 outdoor water restrictions are in effect. Learn more about how City services are impacted and what you can do during this stage.

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Restoring water service

Currently on Step 4: Stabilizing the system.

Step 1: Fill the feeder main (1-2 days). The increase in pressure could result in further breaks. We will be using acoustic monitors to listen for more wire breaks.

Step 2: Flushing the pipe (1 day). Treated water is needed to clean the feeder main. The water will exit through values and fire hydrants and be decholorinted before entering the river. This will happen at the north side of Edworthy Park. Closures will be in place.

Step 3: Testing the water (1 day). Water samples will be sent to a lab for analysis to make it's safe for the public. Results will be reviewed by Alberta Health Services and Environment and Protected Areas. 

Step 4: Stabilize the system (3-5 days): Pumps at Bearspaw Water Treatment Plant will be gradually turned on and water will start flowing through the network.

To restore service to the feeder main and stabilize the system, we need to move carefully. Each step has risks and could create setbacks. 

Repair overview

Date Update summary
July 4, 2024 -  4:00 p.m.

Our state of local emergency expired this afternoon but our Municipal Emergency Plan is still activated and Stage 4 outdoor water restrictions remain in place as we continue reintroducing our repaired feeder main to the system.  Read the update for July 4.

July 3, 2024 - 3:00 p.m.

Calgarians continue to do their part to ensure a safe transition to full service of the recently-repaired 16 Ave. water feeder main break. Read the update for July 3.

July 2, 2024 - 10:30 a.m.

Indoor water-saving measures have eased, Residents are encouraged to gradually resume normal indoor water use. Stage 4 outdoor water restrictions and the fire ban remain in place. City remains in State of Local Emergency. Read the update for July 2.

July 1, 2024 - 2:30 p.m.

We are currently in the final stage of the fill, flush, test, and stabilize phase. Stabilization is a gradual process and is the stage with the greatest risk. We need to move slowly and safely through this step. Read the update for July 1.

June 30, 2024 - 3:00 p.m.

Water quality testing for the repaired section of the 16 Avenue N.W. feeder main, meets and exceeds water quality standards, indicating it is safe for consumption. Read the update for June 30.

June 29, 2024 - 3:00 p.m.

Work is on schedule restoring water service to the feeder main, which crews finished filling with water last night and flushing being completed this afternoon. Read the update for June 29.

June 28, 2024 - 2:45 p.m.

Today we remain in the filling stage as we reintroduce pressure to the pipe slowly and carefully in preparation for flushing. We anticipate this step to be completed later tonight and flushing of the pipe is expected to commence shortly after. Read the update for June 28.

June 27, 2024 - 3:00 p.m.

With paving of 16th Avenue N.W. substantially completed, crews have started slowly and carefully filling the water feeder main and we are on track to start flushing the pipe tomorrow. Read the update for June 27.

June 26, 2024 - 3:00 p.m.

Filling the feeder main line is a delicate process that requires care and attention. Crews slowly pressurize the pipe and fill with water. As the pipe fills, we’re checking for additional breaks and monitoring pressure levels.. Read update for June 26.

June 25, 2024 - 3:18 p.m.

Repair work on the feeder main break is entering a final critical phase. Today we started backfilling the worksite holes and then will begin repaving the site along 16 Avenue NW as quickly as possible. Read update for June 25.

June 24, 2024 - 3:45 p.m.

With work progressing on schedule at the site of a water feeder main break, an overnight fire punctuates the importance of water conservation. Read the update for June 24.

June 23, 2024 - 3:40 p.m.

We have expanded our program to make non-potable river water available to all Calgarians. Find out where and how to collect.

June 23, 2024 - 3:40 p.m.

Repair work continues to progress on the water feeder main hotspots and installation of new pipe sections has begun. We are replacing four out of five of the hotspots. Read update for June 23.

June 22, 2024 - 5 p.m.

Crews at all repair locations are focused on welding. All damaged sections of pipe have been removed and taken off-site for further forensic investigation. Necessary repair materials have arrived on-site today. Read update for June 22

June 21, 2024 - 3 p.m.

With repair work on the water feeder main break progressing on schedule, the City of Calgary renewed its State of Local Emergency for an additional week. Read update for June 21.

June 20, 2024 - 3 p.m.

The City of Calgary has entered the first phase of supplying Calgary's construction industry with non-potable water so they can get back to work during this building season. Read update for June 20.

June 19, 2024 - 4:25 p.m.

With the arrival of two new lengths of pipe from San Diego early this morning and excavation complete at the sites of five hot spots, work on repairing the water feeder main break is progressing faster than expected. Read update for June 19

June 18, 2024 - 6:15 p.m.

The initial site of the large feeder main break has been repaired. Construction activity continues as we strive toward repairing the five hotspots identified beyond the initial break location. Read update for June 18

June 17, 2024 - 5:15 p.m.

Repairs have been completed on the original feeder main break and construction is under way on the remaining five hotspots. Important festivals, conferences and events will go ahead. Read update for June 17

June 16, 2024 - 4:45 p.m.

We have concluded the inspection on the remaining 300 metres of pipe and preliminary results indicate no new hotspots. Expanded road closures will be in effect on 16 Avenue, NW.  Read update for June 16

June 15, 2024 - 3:45 p.m.

Repair work continues on the 16 Avenue Feeder Main and crews have begun inspections at other hotspot locations. Materials for repairs have been sourced and are en route to Calgary. Read update for June 15

June 15, 2024 - 9 a.m.

City declares State of Local Emergency. Read Update for June 15 morning

June 14, 2024 - 6:30 p.m.

A total of 4.3 km of  the pipe has been inspected for further repairs. Five hotspots south of the current break have been assessed to require critical and urgent repair. Current water restrictions will remain in place for 3-5 weeks. Read update for June 14

June 13, 2024 - 6:50 p.m.

Work has resumed after an overnight shut down due to a safety incident. We continue working on repairs as quickly and safely as possible and have transported the removed pipe for additional analysis. Today the focus was on welding the new piece of pipe.  Read update for June 13

June 12, 2024 - 4:15 p.m.

Crews are working on welding repairs on some of the access hatches along the inspected section of the pipe. The new section of the pipe was completely disinfected this morning in preparation for being lowered into place. Read update for June 12

June 11, 2024 - 2:30 p.m.

Today, we are deploying a second robot that will travel further into the pipe to assess more sections. We also expect crews to begin preparing the pipe for its replacement. Read update for June 11

June 10, 2024 - 7:45 p.m.

Boil water advisory lifted for community of Bowness. Read update for June 10 evening

June 10, 2024 - 5 p.m.

Crews are removing sections of the damaged pipe. and inspections are underway. Roads remain closed and Calgarians are urged to stay clear of the work area. Read update for June 10

June 9, 2024 - 7 p.m.

The City of Calgary continues its efforts to repair a large feeder main break near 16 Avenue NW and Home Road. Work is progressing well, and crews are moving closer to replacing the damaged area of pipe. Read update for June 9

June 8, 2024 - 11 a.m.

Crews are preparing the feeder main for inspection to determine the next steps and expect to begin cutting out the damaged section of pipe. Read update for June 8

June 7, 2024 - 6 p.m.

We have uncovered the pipe and exposed the break. We can now pump out the remaining the water, expose the rest of the pipe and finalize repair plans. Read update for June 7 evening

June 7, 2024 - 7:45 a.m.

Our crews are still working around the clock. Overnight, we continued to pump water from the area around the break. We are hopeful that by later today we’ll be able to see the feeder main and determine the cause of the break. Read update for June 7

June 6, 2024 - 3:13 p.m.

We continue to work on repairing a large water main break in the Bowness and Montgomery area. The break is on a critical transmission line that enables us to move water across the city. Read update for June 6

June 5, 2024 - 9:36 p.m.

We have investigated and confirmed an extensive water main break in the N.W. areas of Bowness and Montgomery. We are confirming the full extent of the impacts and will provide more information as soon as we know more information. Read update for June 5

Images and videos

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