Sustainable Stream Restoration for Waterfront Redevelopment

Cambium’s Natural Sciences team partnered with an Ontario - based construction company, architecture firm, and custom home builder to deliver a project that blends modern residential design with ecological restoration. This approach shows how thoughtful planning and engineering can transform a sensitive waterfront site into a model of sustainable living.

The Challenge

A homeowner in Tiny Township, Ontario, wanted to rebuild their waterfront home near a stream supporting coldwater species.

• Existing structure: within 5 metres of the stream bank

• Township requirement: a Stream Restoration Plan (SRP) to ensure a net ecological gain after construction

Our Solution

Cambium developed and implemented the SRP, which included:

• Stabilizing the stream bank to prevent erosion

• Planting native vegetation to restore habitat

• Removing an old footbridge for natural stream flow

• Designing a Mechanically Stabilized Earth (MSE) system with Cambium Geotechnical Engineers

• Improving soil with compost and mulch, plus sediment controls to protect water quality

All restoration work was completed by qualified professionals using locally sourced native plants.

Results

• First inspection (Sept 2025):

  • MSE system successfully stabilized the stream bank

  • 90% vegetation coverage with minimal invasive species

  • 76 native trees and shrubs planted, 60% survival despite drought

• Annual inspections for 2 years ensure continued success

Impact

This project:
✔ Met municipal requirements
✔ Enhanced stream health and resilience
✔ Reduced erosion risks
✔ Created a stable, productive natural feature