The City of Toronto will be carrying out waterproofing and structure rehabilitation work on the Rosehill Reservoir at David Balfour Park. These necessary upgrades will help to ensure the structural integrity of the reservoir, extend its service life and bring the infrastructure to a state of good repair.

Parks staff are currently reaching out to families who have memorial trees and benches on and around David A. Balfour Park. Please call Ruby Goulart at 416-395-6028 if you have questions about the plans for the memorial plaques after the construction work is completed and to make sure your family’s tree or bench is included.

September 20, 2018: City staff have received a number of similar questions from residents now that the temporary access pathway from Avoca Avenue, east of the park, to the playground and garden is closed. Please see staff responses to these questions in the Important Information tab.

Update #14, November 9, 2018.

Memorial Tree Impacts:

Over the next two weeks, three (3) memorial trees located within the phase 1 work area will be impacted. Two (2) trees will be transplanted to a new location and one tree will be removed and replanted before the end of construction. Transplanting and removing these trees are required to carry out work in Phase 1.

Staff have had direct contact with the family of one tree and have sent emails and a letter to the families of the remaining two trees since the phone numbers of those families are no longer in service.

Update #13, October 26, 2018.

Work on Saturdays to facilitate Phase 1 Construction

The Contractor will be starting work on Saturdays starting November 3 to December 22, 2018 from 9 a.m. to 5 p.m. to continue to remove soil, remove the existing waterproofing membrane and install the new one. Please see this notice.

Update #12, October 24, 2018.

  1. Tree Root Exploration
  2. Injured Tree Removal
  3. On-Street Parking Restrictions on Summerhill Avenue
  4. Temporary Garbage Bin on Rosehill Avenue
  5. Idling on Pleasant Boulevard

Tree Root Exploration

Please see the notice. The contractor will be carrying out tree root exploration on trees located near the lower perimeter pathway from Little Park to south of the construction hoarding at Avoca. The purpose is to determine the condition of trees for Phase 2 construction work and park design planning before the winter season freezes the ground. The work will be noisy and segmented within a temporary fence. Work hours are 7 a.m. to 5 p.m., Monday to Friday and will start October 25 to December 23, 2018.

Injured Tree Removal

A tree by the north-east corner of the Valve House will be removed within the next two weeks (weather permitting) as our colleagues in the Parks division have determined that a split down the trunk (stem) is a significant impact to the tree’s health and condition. See photo below. The project manager has agreed to carry out this removal on behalf of Parks through the Rosehill Reservoir Rehabilitation contractor.

Tree by Valve House is split and requires removal
Tree by Valve House is split and requires removal

On-Street Parking Restrictions on Summerhill Avenue

If you are a resident on Summerhill Avenue, Ottawa Street, Summerhill Gardens or park on-street on Summerhill Avenue near Little Park, please see the message below about on-street parking restrictions.

Please see the Notice that will be delivered to homes and the Flyer that will be placed on car windshields parked on Summerhill Avenue.

From Monday October 29 to Friday December 21, from 7 a.m. to 5 p.m., weekdays only, a 40 metre portion on the south-side, curb lane on Summerhill Avenue, near Little Park/Summerhill entrance will be restricted to ensure sufficient space for large vehicles to turn from Summerhill Avenue through Little Park.

Rosehill Reservoir: Summerhill Avenue on-street parking restrictions
Rosehill Reservoir: Summerhill Avenue on-street parking restrictions

These special deliveries of large equipment and supplies are required to carry out work at the Valve House Parking Lot. This work is required to be completed within Phase 1 while the West Basin of the reservoir is empty. The contractor is using the smallest vehicle to provide these supplies as close as possible to the Valve House, and is not expecting to damage the grass in Little Park.

Unfortunately, this road restriction includes the following temporary impacts to on-street parking:

  • On-Street Parking Spaces: Approximately 6 – 8 on-street parking spaces will be impacted. A flyer will be placed on the windshields of parked cars on Summerhill and notice will be sent to homes. Overnight on-street permit parking will continue; we are asking permit holders to move their vehicle by 7 a.m. if they have parked their car in front of 91 to 101 Summerhill Avenue.
  • New Temporary Permit Restrictions: We have also requested that the Permit Office not issue temporary permits in this area during this time as this area is already near capacity for permanent permit holders.
  • Vehicle is Relocated: As the hours of delivery are 7 a.m. to 5 p.m. we greatly appreciate your cooperation to move your car from these spaces. If cars are not moved, the contractor will knock on the doors of surrounding homes to find the vehicle owner. If they cannot find the vehicle owner, the contractor will request enforcement staff (Toronto Police) to relocate the vehicle to the nearest available on-street parking space.
  • If you vehicle is relocated: Please contact Enforcement 416-808-2222
  • Parking Tickets: If you receive a parking ticket, you can quote “Rosehill Reservoir” as part of your defence for parking consideration during construction; however, the Reservoir Rehabilitation Project Manager does not have the authority to cancel any tickets. 
Construction signage Toronto Police
Construction signage Toronto Police

Example of the signage that will be posted in this area. (Please Note: This is standard Toronto Police signage for construction, it is not related to an emergency)

Temporary Garbage Bin

There has been a few complaints about litter near the Rosehill Avenue walkway to Pleasant Boulevard (between 50 and 70 Rosehill). Our colleagues in Solid Waste have placed a temporary bin on the south side of Rosehill near Bretton Place (33 Rosehill). We have asked the property managers to circulate this with their residents and asking that neighbours use these bins to keep the area clean.

Idling on Pleasant Boulevard

I’ve received a number of complaints about trucks idling on Pleasant Boulevard. These trucks are not related to the Rosehill Reservoir work; they are likely part of the Bell Canada work to install new cables. Please contact Bell Canada at 416-353-3827, quote Project #BGF-X79766 or email toinview@bell.ca

Update #11, September 20, 2018.

The Important Information tab has been updated as we have received many questions about the pathways.

Update #10, August 24, 2018.

Mon August 27: New Access Points & Trucking on Rosehill Avenue

Two new access points for trucking activities will be located along Rosehill Avenue. This is required to expedite the Phase 1 construction schedule after staff efforts were re-directed to review safety concerns of the temporary boardwalk at north-east corner and carry out tree root explorations (see Update #8).

This temporary change:

  • Will start Monday August 27 (construction of the access points)
  • Will continue for Phase 1 and 2. See note below.
  • Will facilitate an additional 3 trucks per hour. See note below.
  • Will not result in trucks queuing on Rosehill Avenue and will not impact trees
  • Will have 2 gates installed in the jersey barrier for the temporary sidewalk and hoarding for truck entry and exit
  • Will have a flag person to coordinate safe entry/exit of trucks with pedestrians on the temporary sidewalk (jersey barriers)

As a result of these new access points at Rosehill Avenue,

  • Maximum number of trucks at the new Rosehill Access Points is 3 per hour
  • Maximum number of trucks at Avoca Main Access Point is 3 per hour
  • A combined maximum number of trucks for this project is 6 per hour.

These two new gates during Phase 1 will facilitate the removal of existing soil, and the construction of a valve chamber infrastructure. Phase 2 includes ongoing work on the valve chamber and bringing in new soil. Each soil handling stage requires 6-8 weeks.

City staff have supported this change to address the schedule impacts that resulted from the above-mentioned issues. This change was also presented to the Councillors’ office and representatives of neighbourhood associations. We apologize that this is another change from the original plan for construction work.

Trucking Rosehill Access Points
Trucking Rosehill Access Points

Update #9, August 20, 2018.

Portable Washrooms

Based on overwhelming response, portable washrooms will not be installed at Little Park, near the Summerhill entrance for Phase 1.

On Update #7 August 10, the City provided advance notice and rationale for providing the portable washrooms: “The washroom building will also be closed. Maintenance vehicles will not be able to access the washroom to perform the required maintenance. Portable washrooms will be located at the Summerhill entrance to the Park.”

Noise at Valve House on Monday August 27, 2018.

Crews will be performing Hydrovac activities at the Valve House parking lot on Monday August 27, 2018. It will be for the full day and will be noisy. Apologies in advance.

Update #8, August 17, 2018.

The following construction activities for the Rosehill Reservoir will start next week:

  1. tree removals
  2. soil removal
  3. washrooms in Little Park

Tree Update:

Earlier this Spring, trees at the top of the reservoir slopes as well as trees that would have been severely damaged (i.e. could not be preserved) as a result of the rehabilitation work during Phase 1, were removed by the Contractor.

For trees that could potentially be impacted, the Contractor was required to carry out root exploration before determining the next steps. Root exploration efforts for Phase 1 has now been completed and will result in the following actions:

  • One (1) tree will be preserved (i.e. no impact) in accordance with the City’s Tree Protection Policy
  • 16 trees will be preserved with minor injury
  • Six (6) trees will be removed  as construction will severely impact the roots
  • One (1) tree came down during a wind/weather event and will be removed

Tree removals will begin Thursday August 23, weather permitting.

Soil Removal:

The removal of the soil on top of the reservoir will soon begin Monday August 20, in order to expose the reservoir roof and begin work to repair and install the waterproofing membrane. The main impact as part of the work to remove soil will be an increase in truck traffic through Rosehill and Avoca Avenue.

  • Currently there is about 3 to 6 trucks per day that use the main access area near the Avoca Parks Yard (Avoca and Rosehill).
  • When soil removal begins, there will be 3 trucks per hour.

Portable washrooms will be installed in Little Park, west of the asphalt path (south of David A Balfour Park, near Summerhill Avenue) this week. One will be an accessible washroom.

The City is also working with the Contractor to review any options in the construction schedule to open up access to the park ahead of construction completion now that the temporary pathway at Avoca Avenue is closed. The City will share an update with the Community later this fall.

We appreciate your understanding and patience during this time as we work to upgrade this reservoir and ensure the delivery of safe drinking water to residents and businesses. We know this project has been a challenge and we are committed to working with community representatives and the Councillors’ offices to address issues that arise.

Update #7 August 10, 2018.

Apologies for not providing an update since late June. Staff have been reviewing concerns received from community members regarding the temporary (boardwalk) pathways both at the north-east corner of the park (Avoca Avenue) and at Little Park/south of Valve House.

Please read Construction Notice Update #1.

  • Access to the park via the north-east corner near Avoca Avenue will be closed due to safety concerns.
  • Signage will be developed and installed indicating detour route via Rosehill-Yonge-Summerhill. (The ravine network will remain open for those people who are accustomed to the local trails).

The washroom building will also be closed. Maintenance vehicles will not be able to access the washroom to perform the required maintenance. Portable washrooms will be located at the Summerhill entrance to the Park.

Ensuring the community’s safety around this active construction site is important and we thank you for understanding and ongoing patience.

Update #6 June 29

The painting of the hoarding is almost complete and park lights on top of the reservoir and along the south and western side of the park will soon be removed.

Temporary Pathways

Temporary pathways have been put in place around the hoarding. The City is dedicated to keeping access to the remaining park space open during construction. A recent site visit was held with representatives from the community and local Councillors to discuss potential enhancements to increase visibility and mobility.

Unfortunately, the location of the reservoir is a constrained site and hoarding cannot be shifted any further to widen the temporary paths. With a focus on the temporary pathways at Little Park/Valve House and at the north-east corner near Avoca Parks Yard, the City will be taking further steps to:

  1. Install signage that clearly communicates the limited access, ask cyclists to dismount and dog walkers to have their dog remain on leash.
  2. Add large convex mirrors at the corners to help you see any movement/oncoming park users.
  3. Add lighting along the deck to illuminate the pathway only and in keeping with the Crime Prevention Through Environmental Design (CPTED) guidelines.

In addition to these activities, City staff are reviewing opportunities to install transparent material on hoarding panels located around the temporary paths and a bump-out space to pass/rest. A future update will provide more details.

An additional temporary pathway and stairway will be added for park users to have easier access to the Washroom and Rosehill Garden.

Rehabilitation Activities

Work has already begun to remove the reflecting pools. The stone wall along the cascade/fountain at Rosehill Avenue will also be removed.  You may also have noticed that the water molecule feature has now been removed. It will be preserved, as it is a heritage feature and incorporated into the new design.

Contractors have been reminded to start after 7 a.m. in keeping with the Noise By-law.

Update #5 June 8

  • The hoarding and Tree Protection Zones are almost completely installed for phase 1 work.
  • Installation of temporary walkway at Avoca Avenue, around the Parks Yard, is underway.
  • Installation of temporary walkway from Little Park to the east side of the park is underway and expected to be completed by the end of next week.
  • The hoarding is being painted green.

Update #4 May 25

  • Construction hoarding and Tree Protection Zones are almost completely installed.
  • At the north-east part of the construction site at Rosehill and Avoca, the existing pathway (red circle on map) will remain open until the temporary pathway is constructed (pink line on map). Signage on the hoarding indicates the path is still open (photo). If there is any construction equipment movement in this area, a construction crew member will be nearby to ensure people can safely cross this part of the site.
Avoca and Rosehill path and hoarding photos
Avoca and Rosehill path and hoarding
  • Temporary garbage bins have been installed by the contractor at the Garden and Washroom. Solid Waste bins have been installed at the end of Jackes Avenue. The temporary bins will be in replaced Solid Waste bins.
temporary garbage bins photo
Temporary garbage bins
  • Tree cutting started May 23 for trees that are located on top of the reservoir and on the slopes. The removal of these trees are required to accommodate the installation of the reservoir’s waterproofing membrane.

Now that hoarding is almost installed, there is limited park space around the Garden. This is a gentle reminder to please be courteous to all park users and also to keep all dogs on leash.

Update #3 May 18

The project team has received concerns about the garbage bins in and around the park. Many of the bins were removed before they were relocated to another spot outside of the construction hoarding.

The project manager has spoken with our colleagues in Solid Waste and they will be installing garbage and recycling bins next week at the following locations:

  • At the Rosehill Garden
  • At the end of Jackes
  • An additional set in Little Park
  • On Avoca Ave near the Parks Yard
  • At the washroom

Please note – No garbage bins will be located in the playground area since the perimeter path is not accessible for the Solid Waste collections vehicles. The garbage bin on Rosehill at the north-west corner of the Park will also not be replaced due to insufficient space provided with the temporary sidewalk.

We will also be scheduling a litter pick up of garbage left around the park. With the unfortunate timing of this issue, no clean-up crews can be scheduled for this work over the upcoming long weekend. We will provide you with the date once it has been scheduled.

Temporary Pathways

  1. Ramp to the Garden — The contractor will be installing a temporary ramp from the Valve House to the Rosehill Garden, since part of the existing path will be inside the hoarding. This ramp will run from the Valve House, next to the hoarding and tie into the existing path to the Garden. This ramp is being inserted into a packed construction schedule and the contractor is expecting the installation within the next four weeks.
  2. In addition the following temporary pathways will also be installed with the hoarding over the next 3-4 weeks:
    1. Temporary Pathway from Avoca Ave to the Perimeter path (around Avoca Parks Yard)
    2. Temporary Sidewalk (along the south side of Rosehill Ave, adjacent to the Park)

Update #2 April 30

On Monday April 30, installation of hoarding and tree protection zones will begin and continue to take place for the next few weeks. The white-shaded area (not the dash lines) on the map show where hoarding will be installed on the west side of the park.

Rosehill Reservoir Phase 1 hoarding
Rosehill Reservoir Phase 1 hoarding

Update #1 April 24 and 25

Construction crews will be doing locates on site starting April 24 and April 25 including Little Park, inside site buildings and chambers. They may use spray paint, wooden stakes and small flags to mark buried service lines. This work will take place within the hours set by the noise by law (7 a.m. to 7 p.m.) and will take place prior to the installation of hoarding.

Construction Notice and Public Drop-In Event

Rehabilitation work on the reservoir is scheduled to begin in April 2018 with the placement of hoarding (wooden fence) around the perimeter of the west side of the reservoir. This area of David Balfour park will be closed to public access until Phase 3 of the rehabilitation project. The east side of the reservoir will remain open to the public until Summer 2019.

A Public Drop-In Event took place on Monday, March 19 from 6 to 8 p.m. at Yorkminster Park Baptist Church (Heritage Room), 1585 Yonge Street.  Members of the public were invited to drop in during this time to learn about the rehabilitation of the reservoir, the details of the construction process and efforts to mitigate impacts. City of Toronto staff were present to answer any questions and receive feedback from the public. See the Public Consultation tab for additional information about this event.

Residents in neighbourhoods around the reservoir were sent a Construction Notice in the mail that explains the phases of construction. Properties that are within close proximity to the site will also receive a notice regarding pre-construction inspections.

Project Updates

If you would like to receive email updates about this project, please contact Kate Kusiak at rosehill@toronto.ca.

Map of Rosehill Reservoir
Map of Rosehill Reservoir

Construction Update #1 August 10, 2018.

A Construction Notice was provided to update the community on the temporary pathways and washroom access.

Public Drop-in Event

March 19, 2018

Members of the public were invited to drop in to learn about the rehabilitation of the reservoir, the details of the construction process, and efforts to mitigate impacts on the community. City of Toronto staff were present to answer any questions and receive feedback from the public.

Public Drop-in Event Notification Flyer

Public Drop-in Event Display Boards

Any questions, comments or feedback about the project can be directed to Kate Kusiak rosehill@toronto.ca

Previous Consultation

Starting in 2015, the project team met with local stakeholders, permit holders, schools, and other groups that use the green roof of the reservoir regularly. Notices were distributed to area residents and signs have been posted on site.

September 2017 Public Meeting

September 13, 2017

Thank you to all who attended the Rosehill Reservoir Rehabilitation Public Meeting on September 13, 2017 at Yorkminster Park Baptist Church.

If you were unable to attend the meeting, you can view the presentation slides.

Summerhill Residents Association Meeting

October 13, 2016

On October 13, 2016 the project team was invited to give a presentation to the Summerhill Residents Association on the preliminary state of the project. You can view the presentation slides below. Please note that the timelines in this presentation are outdated. The most updated timelines are included in the May 31, 2017 Rosehill Vision Committee Meeting Presentation.

Rosehill Vision Committee Meeting

May 31, 2017

On May 31, 2017 the Rosehill Vision Committee (comprised of neighbourhood residents) held a community meeting to discuss their proposed plans for the green roof of the reservoir and Little Park. The Committee kindly invited City staff to attend the meeting and give a brief presentation that outlines the revised project schedule. View the presentation slides.

Notices

On October 26, 2015 the City distributed a notice to properties adjacent to David A Balfour Park regarding a tree inventory to be completed in the first few weeks of November. View the October 26 Notice of Site Work.

On November 10, 2015 the City distributed a notice to properties adjacent to David A Balfour Park regarding survey work to be completed from mid-November to mid-December. View the November 10 Notice of Site Work.

Rosehill Pumping Station

The Rosehill Pumping Station located at 240 Mount Pleasant Road in Toronto, south of St. Clair Avenue, is one of the eighteen pumping stations operated by Toronto Water. In 2008, the City of Toronto conducted a study to evaluate system sustainability during a City wide area power failure. One of the recommendations from this study was the installation of standby power at Rosehill Pumping Station, which include building extension to house 2 generators and a fuel storage tank. In 2013, the City of Toronto also conducted a system-wide review of its drinking water infrastructure and determined through this process that the Rosehill Pumping Station requires rehabilitation to bring to a state of good repair. It is the City’s intent is to realize efficiencies by combining the rehabilitation work and the standby power installation into one project, the Rosehill Pumping Station Rehabilitation and Standby Power Installation.

September 20, 2018: The City’s contractor allowed the use of an Asphalt Pathway through the construction zone from Avoca Avenue/Rosehill Avenue to the Garden and Playground, as they were constructing a Temporary Pathway around the eastern side of the hoarding. On August 15, 2018, the City issued a notice that the Temporary Pathway would not be opened. The Asphalt Pathway was also closed as the number of trucks moving from the works yard across the pathway into the main construction site began to increase.

1. Why was the Temporary Pathway at Avoca Avenue built but not opened?

In order to continue to provide park users access during construction, the City’s contractor constructed a new temporary pathway around the hoarding to get residents from Avoca Avenue to the Park’s playground, garden and Little Park (Summerhill Entrance).

Once constructed, the temporary pathway was reviewed and a number of challenges were identified for persons with mobility issues, using strollers or assistive devices. It was narrow and had sharp, low-visibility turns. The 8-foot tall hoarding also contributed a potential sense of isolation. The City examined numerous options to try to address these issues, including ideas put forth by community representatives. Upon further review, the City made a decision to not open the temporary pathway. Access for emergency service vehicles to respond in an emergency situation was a critical factor.

We recognize that our commitment to keeping the park open during the construction work has now changed. Personal safety of the City’s residents and park visitors around an active construction zone is paramount.

2. Why can’t the Temporary Pathway be widened?

Unfortunately the hoarding locations cannot be moved in order to widen the temporary pathway. The hoarding is erected around the perimeter of the construction site to safely contain the construction activities and prevent unauthorized access to the work site. The location of the hoarding provides the minimum space necessary for the contractor to carry out work. This work includes removing soil/sod from the top of the reservoir (and eventually replacing it), truck marshalling, delivery and storage of equipment and large supplies. See photos below.

truck inside Rosehill hoarding near ravine and Avoca
truck inside Rosehill hoarding near ravine and Avoca

 

flatbed truck in Rosehill construction near Avoca and Ravine (rear view)
flatbed truck in Rosehill construction near Avoca and Ravine (rear view)

 

The location of the hoarding, combined with the very close proximity of the Yellow Creek ravine prevented any viable option to widen the temporary pathway and improve visibility.

3. Why was the Asphalt Pathway opened and then closed?

The asphalt pathway was provided by the contractor during the early stage of construction and was originally intended only as a temporary feature. Construction crews were able to safely provide park users access along the asphalt pathway through the construction site from Avoca Avenue/Rosehill Avenue to the Park’s playground, garden and Little Park/Summerhill Entrance as the number of trucks entering/exiting the site was about 6 trucks per day.

Now that the contractor has moved to the next stage in the schedule, the trucking will increase to 6 trucks per hour. The space through the construction area that was used for the Asphalt Pathway will now be used for staging, material handling, truck marshalling, soil handling and will change every day as work progresses.

trucks inside Rosehill Main Access
trucks inside Rosehill Main Access

4. Why can’t the Asphalt Pathway be opened outside of construction hours?

As the contractor has moved into the next stage in the schedule, truck access will increase to 6 trucks per hour, and will involve moving equipment, storage, accessing supplies and removing soil. Opening up the Asphalt Pathway through this area outside of construction hours would require the crew to construct a new passageway every day and then remove/dismantle it every morning which would impact the construction progress and schedule.

5. Will the ravine recreational trails be open during construction?

Access from Avoca Avenue into Yellow Creek ravine will remain open throughout construction. During Phase 1, access from the recreational trail in the ravine to the Park via Ravine Stairs and Nature Trail & Steps will also continue.

Phases 2 and 3 may require changes to this access based on the location of construction hoarding. More information will be provided once it has been confirmed.

Rosehill Ravine Trails and Access
Rosehill Ravine Trails and Access

6. Will the ravine access be improved?

There are no plans to carry out improvements to the ravine trails as part of this construction contract. Signage will be posted at the Avoca Avenue entrance to the Ravine Trails and Stairs that residents must use their own discretion to take these steep and rough recreational trails.

7. I live in a tower overlooking the park. Why haven’t I seen much construction activity?

The first stage of construction activities included installing hoarding and tree protection zones, removing trees and park fixtures. During this period, the issue of park user access also needed to be addressed by staff.

The next stage will involve removing soil from the top of the reservoir. Residents will see the removal of the soil from the top of the reservoir and installation of the waterproofing membrane. However, crews will also be working inside of the reservoir on the mechanical, electrical systems and carrying out structural improvements. Significant amount of work will be underground and not visible to the public.

8. How will traffic from construction vehicles be managed?

At this next stage of construction activities in Phase 1, trucks will be required to remove and dispose of the soil and sod, demolished concrete and removed trees from the top of the reservoir and bring new soil and sod when the waterproofing membrane has been installed.

In addition to the existing main access point at the Avoca Parks Yard at Rosehill/Avoca, two access points at the north/north-east area of the park will be used for trucks to remove soil from Phase 1 on Monday August 27, 2018 weather permitting. See map below.

The majority of construction vehicle traffic will occur on Rosehill Avenue and on Avoca Avenue and the major arterial roads of Yonge Street and St Clair Avenue. The heaviest traffic will take place during times of soil removal and replacement, and will involve the movement of up to a combined total of six trucks per hour into and out of the site (three trucks per hour, each at Rosehill Access Point and Avoca Main Access). Update #10 included the following information about the new access on Rosehill Avenue:

  • Will continue for Phase 1 and 2. See note below.
  • Will facilitate an additional 3 trucks per hour. See note below.
  • Will not result in trucks queuing on Rosehill Avenue and will not impact trees during Phase 1
  • Will have 2 gates installed in the jersey barrier for the temporary sidewalk and hoarding for truck entry and exit
  • Will have a flag person to coordinate safe entry/exit of trucks with pedestrians on the temporary sidewalk (jersey barriers) along Rosehill Ave.

These two new gates during Phase 1 will facilitate the removal of existing soil, and the construction of a valve chamber infrastructure. Phase 2 includes ongoing work on the valve chamber and bringing in new soil. Each soil handling stage requires 6-8 weeks weather dependent.

A truck marshalling area has been established in the Avoca Parks Yard, at the northeast corner of the reservoir, in order to prevent the need for lane closures or idling on the streets surrounding the construction site.

Trucking Rosehill Access Points
Trucking Rosehill Access Points

What is a reservoir and what does it do?

The Rosehill Reservoir is a ground level structure used for storing drinking water. It is vital in managing water supply and demand, and ensuring a constant supply of water during emergencies such as fires, water main breaks, power outages and pumpage failures.

How many people does the Rosehill Reservoir provide water to?

The Rosehill Reservoir is part of the City’s transmission watermain network and provides drinking water to residents across the city. Based on volume and per capita consumption rates, the City estimates that water from Rosehill Reservoir is consumed by approximately 675,000 people.

Why is the Rosehill Reservoir in need of rehabilitation?

Originally built in 1873, the Rosehill Reservoir is the oldest and largest of ten ground level reservoirs located across the City. It is an enclosed concrete structure that is built into the ground under David A. Balfour Park. The roof of the reservoir is sloped and covered with earth and grass.

The current concrete structure was built in 1966 and has not been rehabilitated since that time. A condition assessment confirmed that the Rosehill Reservoir now requires upgrades to ensure it remains waterproof and structurally sound. This work will extend the reservoir’s service life and bring the infrastructure to a state of good repair.

What is the project timeline?

Construction will begin in April 2018 and last approximately three years, until Spring 2021.

What work is being undertaken?

The project will be carried out in three phases of construction and will involve:

  • Removal of park features, trees, sod and soil from the top of the reservoir
  • Removal of the existing waterproofing membrane from the top of the reservoir and replacement with a new waterproofing membrane (this work will be done first on the west cell of the reservoir, followed by the east cell);
  • Structural work in the interior of the reservoir and rehabilitation of related mechanical/electrical systems
  • Rehabilitation of storm drainage and footing drain systems around the perimeter of the reservoir
  • Rehabilitation work on the Access House and Valve House
  • Replacement of the watermain under the Little Park driveway
  • Rehabilitation of the storm sewer under the playground
  • Replacement of soil and sod, and reinstatement of park features

The project team has made a concerted effort to identify construction methods that minimize disruption.

Will the public be able to access the park during construction?

Public safety throughout construction is the City’s priority. Some parts of the top of reservoir will be accessible to the public during the first and third phases of construction. Areas of the park that are closed will be surrounded by construction hoarding (wooden fence) to reduce noise and dust and to ensure public safety.

During construction Phase 1 (April 2018 – Summer 2019):

  • The west and north sides of the park will be closed, including the west perimeter pathway from Avoca Avenue to Little Park;
  • A portion of the east side of the park and the Rosehill Garden will remain open to the public.

During Phase 2, the entire park will be closed to the public, including the playground on the east side of the reservoir, for approximately five months.

During Phase 3, a portion of the west side of the park will reopen to the public. The east side will remain closed until the completion of the project.

The perimeter pathway on the east side of the park, from Avoca Avenue to Little Park, and the Vale of Avoca will remain open throughout construction.

Please refer to the display boards from the March 2018 Public Drop-in Event  for more detailed information about construction phases and park closures.

Why is the work being done in phases?

A phased approach to construction will be used in order to allow the reservoir to remain partially operational throughout the project, and to maximize public access to areas of the park during construction.

The reservoir consists of two cells (east and west). The cells must be drained of water and temporarily decommissioned in order to perform work on the structure and waterproofing membrane. The phased approach allows the east cell to remain in operation while rehabilitation work is completed on the west cell, and the west cell to remain operational while rehabilitation work is completed on the east cell.

Why is the soil being removed?

The existing soil must be removed in order to access the roof of the reservoir and the waterproofing membrane. The existing soil, which contains a high proportion of clay, will be removed from the site and replaced with new soil as part of the strategy to improve problems with drainage on top of the reservoir.

 Will the construction work be noisy and disruptive?

As with any construction project, some dust and noise is inevitable. The contractor will be responsible for ensuring the work area is kept clean with sweeping and wetting of roads as required. Every effort will be made to reduce inconveniences to the community and keep noise levels within the limits set by the City’s by-laws.

Where will construction vehicles enter and exit the site?

The primary access point for construction vehicles throughout the project will be the Avoca Parks Yard area at Rosehill Avenue and Avoca Avenue. Temporary site access for vehicles will be required at the east end of Jackes Avenue. Vehicles will continue to make occasional deliveries to the Valve House through Little Park.

How will traffic from construction vehicles be managed?

Trucks will be required to dispose of the soil, sod, demolished concrete and cut trees from the top of the reservoir and bring new soil when the work is done.  The majority of construction vehicle traffic will occur on Rosehill Avenue, east of Yonge Street, and on Avoca Avenue. The heaviest traffic will take place during times of soil removal and replacement, and will involve the movement of up to 3 trucks per hour into and out of the site.

A truck marshalling area will be established in the Avoca Parks Yard, at the northeast corner of the reservoir, in order to prevent the need for lane closures or idling on the streets surrounding the construction site.

Will access to surrounding streets and on-street parking be affected?

We understand that on-street parking along Rosehill Avenue and Avoca Avenue is important to local residents. The establishment of the truck marshalling area in the Avoca Parks Yard will ensure that on-street parking is not disrupted by construction or truck traffic.

The sidewalk on the south side of Rosehill Avenue from Avoca Avenue to the west side of the park will be closed throughout construction, but a temporary walkway with concrete barriers will be established in place of the existing sidewalk.

What are the work hours for construction?

Construction work will take place Monday to Friday between 7 a.m. and 7 p.m., as per the City by-law. Work outside of these times is not anticipated, however if this is required, local residents will receive advance notification.

Will there be changes to the park after construction?

The portion of David Balfour Park located on top of the reservoir will continue to be a place for public enjoyment after the completion of the Rosehill Reservoir Rehabilitation Project. Much of the park will be restored to its previous state, however there will be changes, as some park features cannot not be replaced, some features will be relocated, and several aspects of the park will be enhanced. The existing reflecting pools will not be reinstated, as they could damage the new waterproofing membrane. Additionally, the washroom building on the east side of the reservoir will be rebuilt in a slightly different location to protect the reservoir structure.

The project team has been working closely with the Rosehill Vision Committee to develop a landscape plan for the portions of the park that will be restored once the reservoir rehabilitation is complete. The landscape plan is informed by the many comments we have received from the public and from local schools.  Implementation of the landscape plan will be funded through Parks, Forestry and Recreation

A Heritage Impact Assessment of the Rosehill Reservoir was completed that includes an assessment of the heritage value of the Centennial Monument, water features, the washroom building, and other elements, and offers recommendations on their preservation or replacement. The project team is aware of the significance of the Centennial Monument and will preserve the water molecule sculpture at a new location within the reservoir site.

Will the Rosehill Garden be affected?

Due to the structural and waterproofing requirements of the rehabilitation work, the Rosehill Garden must be removed during construction and will be reinstated post-construction. The City has worked closely with the Rosehill Garden Volunteers to plan for the garden’s reinstatement and to preserve some plants by temporarily moving them to the garden in front of the City Parks building on Avoca Avenue.

Will trees be removed?

The Rosehill Reservoir Rehabilitation is a major infrastructure project that will require tree removals due to the excavation work required to expose the reservoir structure below ground. Unfortunately, all trees located on top of the reservoir and some of those around the perimeter will require removal, as they are directly within the work zone.

Every effort will be made to minimize the number of trees that will be removed.  The project team is working closely with an arborist, landscape architect, and City of Toronto Forestry staff to develop a plan for tree replacement and planting within the park. Tree planting on top of the reservoir after construction will not be permitted in order to protect the reservoir’s roof structure and the new waterproofing membrane.

The City of Toronto Parks, Forestry & Recreation Commemorative Tree and Bench Program will be notifying families of all trees and benches affected by construction work. Plaques will be stored, or new plaques will be produced and replaced after construction is completed.

 How can I stay updated?

If you are interested in the Rosehill Reservoir Rehabilitation project, you can sign up to the project email list to receive updates and notices. To register, please send a request via email to Kate Kusiak, Senior Consultation Coordinator, Public Consultation Unit, rosehill@toronto.ca.

What if I have questions or concerns about the project?

All questions and concerns can be directed to Kate Kusiak: rosehill@toronto.ca or 416-392-1932.