Pomona Creek Sanitary Infrastructure Protection Project: Site P-080 – Completed

Toronto and Region Conservation Authority (TRCA) conducted remedial bank stabilization works for sanitary infrastructure protection along Pomona Creek, in the City of Markham. The main objective of the works included stabilization of the failed bank for underground sanitary infrastructure protection and to reduce overall public safety risks.

Project Location

The project area was located along a stretch of Pomona Creek, a tributary of the East Don River. The work area was located within Royal Orchard Park, located northeast of the intersection of Yonge Street and Royal Orchard Boulevard, in the City of Markham.

P-080 project location.
  P-080 project location. Source: TRCA, 2018.

Scope of Work

  • Start Date: January 2019 
  • End Date: June 2019

The Pomona Creek Sanitary Infrastructure Protection Project Site: P-080 was considered high priority because bank erosion posed a risk to regional sanitary infrastructure and overall public safety. The scope of work included the following:

  • Removal of the pre-existing failed gabion basket structure
  • Installation of a 40 metre long vegetated rock buttress with associated rock vanes
  • Restoration including paving of the park path, tableland drainage improvements and native tree and shrub plantings
Before remedial works and site restoration. Source: TRCA, 2017.
View of final site restoration, including tree and shrub plantings.
After remedial works and site restoration. Source: TRCA, 2019.