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Monahan Wetland Stormwater Facility Upgrade

Project Status: 

Frequently asked questions

Monahan Wetland Restoration [ PDF 2.087 MB ]

Location of upgrade works

  • The upgrade works will occur within the entire length of the Monahan Stormwater Facility, extending from Hope Side Road to Bridgestone Drive.

Reason for the upgrades/remedial work

  • The Monahan Stormwater facility was originally designed and constructed in 1993, and is no longer achieving its regulatory water quality effluent targets.
  • The reconstruction efforts will bring the facility into regulatory compliance, and the facility reconstruction has been designed to the City's current standards.

Proposed Improvements

  • A hybrid stormwater pond will be created – it will provide a combination of wetland features with open water features. Shallow wetland areas and deeper pools will be added, introducing a more diverse aquatic habitat of both fish and plant species.
  • In addition to the stormwater facility upgrades, an additional culvert is being constructed immediately downstream of the stormwater facility at Hope Side Road to improve the overall water flow.
  • The facility will be reconstructed to satisfy the most current City and Ministry of Environment design standards, which will result in improved water quality leaving the facility and flowing to the Jock River.
  • The works will remove sediment and increase the storage volume of water in the ponds, providing a greater level of service to the existing community during major storm events (results in reduced flooding risk).
  • The design will incorporate significant landscaping features such as grasses, shrubs, trees and aquatic plantings, and extension of the existing pathway network with new paths created along west side of facility.

Construction Timing

  • Work scheduled in 2015 will include: earth moving, in-water dredging, installation of pipes, installation of a new culvert at Hope Side Road and rough grading.
  • Work scheduled in 2016 will include all landscaping consisting of in-water plantings, trees, shrubs, fences and pathway improvements.

Pathway Closures

  • To ensure public safety, pathway closures will be in effect throughout the period of active construction; work is expected to be completed in spring 2017.
  • Pathways on the west side of the facility will be closed mid-May 2015. Pathways on the east side of the facility will be closed July 2015.

Information and presentation - Tuesday, October 21, 2014

Information and presentation 
Tuesday, October 21, 2014

Bridlewood Community Association meeting
Eva James Community Centre
65 Stonehaven Drive
Community Association meeting begins at 7:30 p.m.
Display boards and presentation by City Staff following the meeting

In conjunction with the monthly meeting of the Bridlewood Community Association, City staff will present the details on this project and answer questions following the meeting.

By attending this presentation, residents will learn more about the upgrades to the Monahan Wetland Stormwater Facility being constructed in 2015 and 2016, including the following:

  • Shallow wetland areas and deeper pools will be added. The design will incorporate significant landscaping and extension of the existing pathway network.
  • All public access around the stormwater ponds, including all pathways, will close to permit construction and ensure public safety.
  • Another culvert will be added immediately downstream at Hope Side Road to improve the overall flow regime. The installation of this additional culvert is a Schedule A+ project as per the Municipal Class EA process and requires public notification.

Study area map for Monahan Wetland Upgrade Stormwater Facility

Questions? Please contact:

Ryan Polkinghorne, Project Manager
Environmental Services
City of Ottawa
613-580-2424 ext. 28008

Kathy Rygus, Planner
Planning and Growth Management
City of Ottawa
613-580-2424 ext. 28318