Peacham Crescent Slope Stabilization Project

Toronto and Region Conservation Authority (TRCA), in partnership with the City of Toronto, is proposing to complete slope stabilization works behind Peacham Crescent. These works will provide long-term protection to multiple residential properties located at the top of slope from the  hazards of erosion and slope instability.

Project Location

This project is located in the City of Toronto, northeast of Jane Street and Wilson Avenue.

Learn More About the Project

Project Background

Concerns regarding slope instability behind Peacham Crescent were reported to TRCA  after the July 8, 2013 severe storm event (Figure 1). This storm event caused massive flooding and erosion throughout the river and valley systems across the Greater Toronto Area and resulted in damage to hundreds of properties.

Without any protection measures in place, a section of the valley slope behind Peacham Crescent will continue to erode and further destabilization of the slope is expected to occur over the long term. As such, TRCA has prioritized this site for assistance with slope stabilization works under the Erosion Risk Management Program (ERMP).

Slumping at top of slope at Peacham Crescent. Source: TRCA, 2013.
Figure 1. Slumping of tableland along top of slope behind Peacham Crescent.
View of valley slope behind Peacham Crescent.
Figure 2. A slope segment below Peacham Crescent that has been identified as an erosion hazard area. Source: TRCA, 2017.

This project is being planned in accordance with Conservation Ontario’s Class Environmental Assessment for Remedial and Flood Control Projects (2013)

Scope of Work

The objective of this project is to construct a Mechanically Stabilized Earth structure to stabilize the upper slope behind Peacham Crescent and provide long-term protection to four residential dwellings.

The scope of work for 2021 includes following:

  1. Finalizing the detailed designs for the stabilization structure
  2. Securing all permits and approvals required for construction
  3. Implementing the erosion control and slope stabilization works in Fall

Construction Information

Construction began on November 1, 2021 and will last for approximately 8 months. Final site restoration will be completed during favourable weather conditions following completion of construction.

Construction Work Hours: Monday to Friday, 7:00 a.m. to 5:00 p.m.

Closure: Please be advised that a section of the Giovanni Caboto multi-use trail will be closed to pedestrian access for the duration of construction to protect public safety. We ask the public exercise caution and stay clear of the work area and any equipment while construction is underway. The map below highlights the work area (red) and trail closure (yellow).

Construction Hazards: There may be temporary construction related dust/noise during work hours

We thank you for your continued cooperation and patience throughout the duration of this project.

Public Consultation

Notice of Intent (NOI)
TRCA formally initiated this project in 2018 through the issuance of an NOI. The NOI was published in the North York Mirror on November 22, 2018 to inform the local community about TRCA’s intent to undertake slope stabilization works behind Peacham Crescent.

Community Liaison Committee (CLC) Meeting #1

TRCA hosted a CLC meeting on March 7, 2019. Interested stakeholders were invited to attend this meeting to learn about TRCA’s Erosion Risk Management Program and the alternative solutions proposed to address the slope stability issues identified behind Peacham Crescent.

Notice of Filing (NOF)
TRCA issued an NOF on September 26, 2019 notifying interested stakeholders that the Class Environmental Assessment Project Plan will be available for a 30-day public review period. Interested stakeholders were invited to review the Project Plan and provide their written comments to TRCA.

Notice of Project Approval (NOA)
TRCA issued an NOA on February 14, 2020 confirming that no concerns were raised during the 30-day Class EA public review period. As such, the project was approved to proceed with the next planning stage for the project, including detailed designs and permits for construction.

Notice of Tree Removals
TRCA hand delivered notices to nearby residents to inform them about the necessary pre-construction works, including tree removals, scheduled to commence in October, 2021.

Notice of Construction
TRCA installed construction information signs at multiple locations throughout Exbury Park. TRCA also delivered notices to project stakeholders and residences surrounding the project area to notify them of TRCA’s upcoming construction activities.

Project Updates

Update: September 23, 2021 
TRCA staff will commence site preparation, including necessary tree removals ahead of the scheduled construction works. This pre-construction work is anticipated to take three weeks to complete.

Tree removal work will be occurring in Exbury Park, along the Giovanni Caboto multi-use trail, and within the ravine lands behind Peacham Crescent. Work will typically be occurring between Monday and Friday, 7:00 a.m. to 4:00 p.m.

During this time, residents of the surrounding area may notice some noise from the equipment being used. Some vehicular traffic for removal of felled trees will be travelling through Exbury Park and along the Giovanni Caboto Trail.

Update: September 27, 2021
Site perimeter fencing is being installed around the staging and stockpile area and along the trail to isolate the work area.

Update: November 8, 2021
Site perimeter fencing has been installed around the staging and stockpile area and along the trail to isolate the work area. Erosion and sediment control measures have been also been installed throughout the site. Felled trees will be removed from the site this week.

Update: November 30, 2021
Tree removals and site preparation is complete. Construction staff are currently excavating the slope where the new retaining wall structure will be installed.

Update: December 10, 2021
Staff continue to excavate the slope behind 21, 23, 25 and 27 Peacham Crescent.

Update: December 15, 2021
Construction staff are preparing to install a new drainage system that will be incorporated into the Slope Stabilization Structure.

Update: December 21, 2021
Construction staff continue to excavate the slope behind 21, 23, 25 and 27 Peacham Crescent. Construction staff are installing the first tier of the RRS wall. The construction site will be shut down until January 4th, 2022 for Festive Closure. 

Update: January 11, 2022
The construction site has re-opened for 2022 and construction staff continue to install the first tier of the RRS wall.

Update: January 20, 2022
The construction site was closed on 01/17/2022 due to severe weather conditions. The construction staff continue to complete the first tier of the RRS wall. 

Update: January 27, 2022
Construction staff installed the first catch basin and continue to excavate the first tier of the RRS wall. Efforts are being made to ensure the integrity of the RSS wall is not impacted by snow accumulation or freezing/thawing.

Update: February 01, 2022
Construction staff continue to excavate the first tier of the RRS wall. Efforts are being made to ensure the integrity of the RSS wall is not impacted by snow accumulation or freezing/thawing.

Update: February 08, 2022
Construction staff continue to level and compact the first tier of the RRS wall. Efforts are being made to ensure the integrity of the RSS wall is not impacted by snow accumulation or freezing/thawing.

Update: February 15, 2022
Construction staff finished leveling the first tier of the RRS wall. Construction staff begin set the the first level of the second RSS tier. Construction staff continues to work diligently to ensure the integrity of the RSS wall is protected from snow accumulation or freezing/thawing.

Update: February 22, 2022
Construction staff finished the first level of the second RSS tier. Efforts are being made to begin the construction of the second level of the second RSS tier. Construction staff continues to work diligently to ensure the integrity of the RSS wall is protected from snow accumulation or freezing/thawing.

Update: March 01, 2022
Construction staff finished the second level of the second RSS tier. Construction staff have begun to construct the third level of the second RSS tier. Construction staff continues to work diligently to ensure the integrity of the RSS wall is protected from snow accumulation or freezing/thawing.

Update: March 08, 2022
Construction staff continue to construct the second tier of the RSS wall and have implemented the final catch basin.

Update March 29, 2022
The construction staff completed approximately half of the top tier of the RSS wall and completed majority of the lower tier of the RSS wall.

Update April 5, 2022
Construction staff have completed the top wall of the third tier of the RSS wall and finished installing the horizontal leg along the bottom tier.

Update April 12, 2022
Construction staff have continued to implement the top tier of the RSS wall.

Update April 19, 2022
A portion of the excess soil material from excavating the slope has been removed throughout the week.

Update May 3, 2022
Construction staff continue to implement the top tier of the RSS wall.

Update May 10, 2022
Construction staff have completed the swale along the top tier of the RSS wall and have continued to implement the top tier of the RSS wall.

Update May 16, 2022
A portion of the excess soil material from excavating the slope has been removed throughout the week.

Update May 23, 2022
A portion of the excess soil material from excavating the slope has been removed throughout the week.

Update May 30, 2022
A portion of the excess soil material from excavating the slope has been removed throughout the week.

Update June 06, 2022
Construction staff finished applying top soil to the top tier of the RSS wall.

Update June 13, 2022
Construction staff began constructing the gabion splash pad spillway and regrading the lowest tier of the RSS wall.

Update June 20, 2022
Construction staff replaced the safety fence separating the RSS wall and private properties with a temporary fence in preparation for the fence installation. Slope restoration is still underway throughout the RSS wall.

Update June 27, 2022
Excess soil material from excavating the slope continues to be removed from the construction site throughout the week. Construction staff implemented a portion of the gabion splash pad spillway.

Update July 04, 2022
The remaining excess soil material was removed from the construction site this week. Staff are beginning to place sod along the top tier of the RSS wall. Construction staff completed a portion of the gabion splash pad spillway.

Update July 11, 2022
Staff completed the sodding along the top tier of the RSS wall. Construction staff have completed installing the bottom tier of the RSS wall. The concrete along the park path will be removed later this week for future replacement.

Update July 20, 2022
The light post at the base of the structure along the park path has been re-installed. Chain link fencing is currently being installed along the top of the RSS wall.

Update July 27, 2022
The RSS wall is finished construction. The restoration phase of this project will take place before Winter 2022. The construction staff plans to re-pave the park  path and re-install a new p-gate within the coming weeks. 

 

Contact Us

For more information regarding this project, please contact: 

Ashour Rehana, Manager
Erosion Risk Management
Restoration & Infrastructure
ashour.rehana@trca.ca
(365) 566-2377