North Calgary Water Servicing Project
Project status – November 2025
Crews have begun bringing material and supplies to the first construction site just east of the Shane Homes YMCA at Rocky Ridge. Next, we’ll begin construction on our first facility at the Top Hill Reservoir (same area) later in November this year.
The feeder main is being built through seven separate construction contracts. The first, called Contract C1, covers the first seven kilometres of feeder main installation. This initial work involves open trench digging and installation of the first sections of the feeder main just east of the Shane Homes YMCA. Construction this year may also include preparation and potential installation of the feeder main along sections of Rocky Ridge Road.
In 2026, work will continue in these areas and will also include installation of the feeder main along 144 Ave N.W.
The North Calgary Water Servicing Project (NCWS) will construct a new 22 kilometre water feeder main and multiple support facilities. The feeder main and facilities will deliver 100 million litres (ML) per day of clean, safe and reliable drinking water to existing and future communities in northwest Calgary. Flows will reach 410 ML per day once a new water treatment plant is built. The project is essential in providing adequate water supply for future population growth in the northwest area of the city while adding redundancy to our water distribution system.
The project is in the design phase, with construction of the feeder main and some facilities set to begin in October 2025. An initial 6.5-kilometre section of the feeder main and upgrades to the Mountain View Pump Station will add an initial 30 ML per day to the City’s water distribution system. This work is anticipated to be completed by early 2027 and the entire system is expected to be in service by late 2029.
The feeder main will run west from the Bearspaw Water Treatment Plant near Stoney Trail and Nose Hill Drive, turn north along 12 Mile Coulee Road N.W. crossing under Crowchild Trail. It will continue along Rocky Ridge Road N.W. up to 144 Ave N.W. It then runs east, connecting to the Northridge Feeder Main at 144 Ave N.W. and 14th Street N.W. The 10 support facilities span throughout the length of the feeder main.
The project involves seven linear (feeder main pipe) contracts and ten facility work packages which includes a pump station, reservoirs and control booster stations.
This project is one of several others which helps increase Calgary’s water transmission capacity which includes:
- South Calgary Watering Servicing Project (complete by 2031)
- Bearspaw South Feeder Main Improvements Project
- New water treatment plant at Bearspaw
- Crosstie Feeder Main (complete in 2029).
Project benefits
- This project is essential to meet water demand in northwest Calgary given recent population growth and provides adequate water supply for future residential and commercial development to take place.
- The new feeder main and facilities will increase redundancy in Calgary's water distribution system. This is an important investment as it allows us to continue to provide water service to Calgarians and customers when our existing feeder mains or pump stations are out of service in the event of emergency or planned repairs.
- Sections of the project will be completed by microtunnelling, which reduces construction impacts on traffic, parks and greenspace. This work will primarily take place under Crowchild Trail and a portion of 12 Mile Coulee Road.
Construction and impacts
Please note all work will take place from 7 a.m. to 7 p.m. Monday to Saturday with potential work on select Sundays. Completed activities will be removed from the table.
Contract C1
| Where are crews working | Timeline | What crews are working on | Traffic impacts |
|---|---|---|---|
| Within city property at new Rocky Ridge Athletic Park east of Shane Homes YMCA | November 2025 - December 2026 | Installation of a new feeder main pipe and new water main |
Both lanes of WB Country Hills Blvd N.W. closed Friday, November 7 to Monday, November 10. Two-way (east/west) traffic will be maintained via detour on the eastbound (south) lanes on Country Hills Blvd N.W. |
| East side of Rocky Ridge Road N.W. and north of Shane Home's YMCA to 144 Avenue N.W. | November 2025 - December 2026 | Site preparation, tree removals, earth stripping and feeder main installation | None |
| East side of Rocky Ridge Road N.W. between Shane Homes YMCA to 144 Avenue N.W. | March 2026 - December 2026 | Site preparation, tree removals, earth stripping, feeder main installation, backfilling and site remediation | None |
| South side of 144 Avenue N.W from Rocky Ridge Road N.W. to east of 69 Street N.W. | March 2026 - December 2026 | Site preparation, tree removals, earth stripping, feeder main installation, backfilling and site remediation |
|
Contract C2
| Where are crews working | Timeline | What crews are working on | Traffic impacts |
|---|---|---|---|
| Median of 144 Avenue N.W. between 69 Street N.W and east of Symons Valley Road N.W. | Q2 2026 - Q4 2027 | Site preparation including curb and gutter removal, asphalt removals, feeder main installation, backfilling, paving and curb and gutter reinstatement | TBD |
Project timeline
Conceptual design
Conceptual design of the feeder main was completed in late 2023. Conceptual design of the facilities is in progress and will be completed at the end of 2025.
Preliminary design
Preliminary design of the feeder main was completed in late December 2024 and is in progress on some of the facilities.
Construction
Construction on the first open cut section of the feeder main begins in November 2025. Construction on the first microtunnelling section and the first facility takes place in fall 2025. Construction of the feeder main is expected to be complete by the end of 2028, with facility construction and system commissioning finalized by the end of 2029, at which point the entire system will be in service.
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Project resources
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See what steps we are taking to protect the environment in this project.
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View where the project will take place on our site maps.