📋 Case Study

Limestone Mine Drainage Canal Co-Designed for Irrigation & Cultural Corridor

Drainage canal threatened Anishinaabe seasonal travel routes and medicinal plant habitats

🏗️ Project Overview

Hanson Aggregates, Ontario, Canada – Quarry Reclamation Project

🎯 Challenge

Drainage canal threatened Anishinaabe seasonal travel routes and medicinal plant habitats

🔧 Design Approach

Canal redesigned with bio-engineered banks, fish passage, and integrated interpretive signage; irrigation outlets co-managed by First Nation agriculture cooperative

📐 Design Diagram

AI-generated project design illustration

📐 Key Calculations

Hydrological Equivalence Ratio

Post-Mine Flow Volume / Pre-Mine Baseflow

Result: 0.98

Maintained ecological flow continuity

Cultural Access Metric

Linear km of Traditional Route Preserved / Total km Affected

Result: 92%

Validated under UNDRIP Article 25

📊 Results

Zero displacement of traditional harvesting; 120 ha irrigated for Indigenous food sovereignty; awarded Canadian Council for Aboriginal Business ‘Reconciliation in Practice’ Award

💡 Lessons Learned

•Hydrology modeling must include Indigenous hydrological knowledge
•Interpretive signage requires co-authorship
•Irrigation governance must mirror land stewardship protocols

✅ Key Takeaways

1Hydrology modeling must include Indigenous hydrological knowledge
2Interpretive signage requires co-authorship
3Irrigation governance must mirror land stewardship protocols