Evan O’Brien

Evan is an RPEQ-certified engineer with more than 20 years of experience in water resources design and civil site roles. He has worked on a wide range of projects including hydrological and hydraulic studies for water infrastructure projects, flood risk assessments, detailed drainage design for road, rail and airport projects, and site-based roles as the designer’s representative for civil construction and flood mitigation projects. Evan is skilled in the use of  floodplain risk management tools including the industry-standard software packages for analysing the hydrology and hydraulics of surface water systems and is regularly called upon to provide technical and peer review services in this field.

Involved in:

• Structures with HEC-RAS
• HEC-RAS Essentials
• HEC-RAS: Past, Present and the Road Ahead (October 2025)
• HEC-RAS Masterclass
• Pipe Networks in HEC-RAS (March 2025)
• Dam Breach Essentials
• Hydrology and Hydraulics Essentials Training Series
• H&H Essentials #5: Hydrostatics and open channel flow
• H&H Essentials #7: Pipe flow and hydraulic structures
• H&H Essentials #8: Flood hazard, scour and sedimentation

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