Eiram Stormwater Management Pond Retrofit

Project background 

The Municipality of Clarington is planning to clean out and retrofit the existing Eiram Stormwater Management Pond located at the southeast corner of Longworth Avenue and Mearns Avenue in Bowmanville.  

The scope of work includes the following:  

• Remove built-up sediment (about 270 cubic metres) from the pond and connecting channel.  
• Upgrade the pond to better capture and remove sediment by adding a settling area (forebay) with standing water, and strengthen areas where water enters and exits to reduce erosion.  
• Repair the storm sewer where it enters the pond, including fixing the damaged concrete end structure (headwall).  
• Repair the stone-lined area (gabion mattress) downstream of where water leaves the pond.  
• Clear blockages and restore the structure that controls water flow out of the pond.  
• Improve access roads by removing wood chips and other organic debris. 

Status and next steps  

• Construction is tentatively scheduled to begin in June/July 2026 and is expected to be completed by November 2026.  

Mearns Avenue traffic impacts  

Mearns Avenue will remain open during construction. Limited, short-term lane closures may occur during working hours for specific tasks, such as material delivery or restoration. Mearns Avenue will be cleared of hazards at the end of each workday to ensure limited disruptions.  

Access to properties for vehicles will be maintained. Garbage and recycling collection, as well as deliveries, will continue without interruption.  

We understand that construction can be disruptive and appreciate your patience as we complete these important upgrades. We apologize for any inconvenience and thank you for your understanding.  

Key Contact

Matt Holmes, P.Eng. 
Capital Works Engineer 
Planning & Infrastructure Services Department 
905-623-3379 ext. 2342 | mholmes@clarington.net