DAM ENGINEERING

Dam Safety Reviews (DSRs)

A comprehensive Dam Safety Review is one of the most important steps in ensuring that a dam continues to operate safely, efficiently, and in accordance with current engineering standards. Our team provides complete DSR services aligned with the latest Canadian Dam Association (CDA) guidelines to help dam owners understand the current condition of their structures and identify any risks that may require action.

What Is a Dam Safety Review?

A Dam Safety Review is an in-depth engineering assessment that evaluates the physical condition, performance, and overall safety of a dam. It examines everything from structural stability and hydrotechnical performance to seismic resilience, instrumentation data, operating procedures, and potential failure modes.

DSRs are typically required every 5 to 10 years, depending on the dam’s consequence classification and regulatory requirements.

Our Dam Safety Review Services Include:

• Comprehensive document and data review (design reports, hydrology, previous studies, instrumentation data, operations logs).
• Detailed on-site inspection of the dam, spillways, embankments, foundations, and outlet works.
• Engineering analyses for structural, hydraulic, and seismic stability.
• Review of instrumentation performance and long-term trends.
• Assessment of the Operations, Maintenance, and Surveillance (OMS) program.
• Failure modes and risk evaluation based on CDA best practices.
• Clear, prioritized recommendations for actions, improvements, or further investigations.
• Professional, regulator-ready final reporting with practical guidance for dam owners.

Why Dam Safety Reviews Matter

Regular DSRs give dam owners confidence that their structure remains safe, compliant, and performing as intended. They help identify developing issues early, reduce operational risk, support long-term capital planning, and demonstrate responsible ownership to regulators and the public.

Why Choose Us?

We provide DSRs that are technically rigorous, clearly explained, and tailored to the real-world needs of owners and operators. Our team focuses on practical, cost-effective solutions that align with regulatory expectations and recognized industry standards.

If your dam is due for a Dam Safety Review — we can help.

Dam Safety Inspections

Regular dam safety inspections are essential for understanding how a dam is performing day-to-day and identifying issues before they become significant risks. We provide detailed inspection services for dams of all types and consequence classifications, ensuring full alignment with Canadian Dam Association (CDA) guidelines and industry best practices.

What Are Dam Safety Inspections?

Dam Safety Inspections are structured, systematic evaluations of the condition and performance of the dam and its appurtenant structures. They assess key features such as embankments, spillways, outlet works, slopes, erosion, seepage, instrumentation, and operating equipment.

Inspections help dam owners document the dam’s condition, identify developing problems, and maintain regulatory compliance.

Types of Inspections We Offer:

• Annual Inspections – A general review of the dam’s condition, performance, and environment.
• Comprehensive (5-Year) Inspections – More detailed evaluations aligned with formal Dam Safety Reviews.
• Routine/Surveillance Inspections – Daily, weekly, or monthly inspections performed by operators (we create or refine these programs too).
• Special Inspections – Performed after unusual events such as floods, earthquakes, storms, or abnormal instrumentation readings.

Our Dam Safety Inspection Services Include:

• Visual examination of the dam, spillway, foundations, abutments, and mechanical systems
• Assessment of seepage, erosion, settlement, cracking, and vegetation impacts
• Review of instrumentation data and performance trends
• Evaluation of operating equipment (gates, valves, controls)
• Drone imaging and documentation (if applicable)
• Photo logs, condition ratings, and detailed reporting
• Clear and prioritized recommendations
• Integration with OMS and DSMP requirements

Why Dam Safety Inspections Matter

Routine inspections are the backbone of a safe dam safety program. They help identify early signs of distress, support asset planning, improve operational awareness, and ensure that issues are caught before they escalate.

Inspections also demonstrate responsible ownership and are often required under provincial and federal regulatory frameworks.

Why Choose Us?

We deliver inspections that are clear, thorough, and actionable. Our reports focus on real risks, practical recommendations, and helping owners understand exactly what needs attention — and when.

If your dam is due for an inspection, our team is ready to support you.

Geotechnical Analysis and Design

Reliable geotechnical engineering is the foundation of safe and successful infrastructure. We provide comprehensive geotechnical analysis and design services that support dams, retaining structures, embankments, foundations, slope stability, and other earth-structure projects across all sectors.

Our work ensures that your structures perform safely under real-world conditions — from soil and rock mechanics to groundwater, seismic loads, and long-term settlement.

What Is Geotechnical Analysis and Design?

Geotechnical analysis focuses on understanding subsurface conditions and how soil, rock, and groundwater will behave under structural loads. Geotechnical design applies this understanding to create safe, efficient, and cost-effective foundations, slopes, embankments, and earth-retaining systems.

These services are essential in any project involving earthworks, slopes, water-retaining structures, and load-bearing foundations.

Our Geotechnical Services Include:

• Site investigations and geotechnical drilling programs
• Soil and rock classification, sampling, and laboratory testing
• Slope stability analysis (static and seismic)
• Earth embankment design and assessment
• Foundation design for dams, buildings, and infrastructure
• Seepage and groundwater modelling
• Settlement analysis and deformation modelling
• Retaining wall and shoring system design
• Dam and dyke embankment evaluations
• Geotechnical risk assessment and mitigation strategies

Industries We Support:

• Hydropower and dam infrastructure
• Municipal and water resource structures
• Mining and tailings facilities
• Transportation and civil infrastructure
• Industrial and commercial developments

Why Geotechnical Analysis Matters

Subsurface conditions are often the greatest source of uncertainty in engineering projects. A strong geotechnical program helps:

• Reduce construction and operational risk
• Prevent failures, slides, and costly repairs
• Improve design efficiency and long-term performance
• Support regulatory compliance and due diligence
• Ensure safe, stable, and reliable structures

Why Choose Us?

We combine technical expertise with practical, real-world experience in geotechnical engineering. Our approach is grounded in detailed analysis, modern modelling techniques, and an understanding of how structures behave over time.
Our designs prioritize safety, cost-effectiveness, and long-term performance.

If your project requires experienced geotechnical engineering support, our team is here to help.

Design and Rehabilitation Services for Dams

Effective dam design and rehabilitation are essential to ensuring long-term performance, regulatory compliance, and public safety. Whether a structure is aging, experiencing performance issues, or simply due for modernization, our team provides end-to-end engineering solutions that restore functionality and extend asset life.

We begin with a detailed assessment of the dam’s current condition—evaluating structural integrity, geotechnical performance, hydraulic capacity, and any operational limitations. From there, we develop a practical rehabilitation strategy tailored to the specific site, materials, environmental constraints, and regulatory requirements.

Our engineers provide full design services, including concept development, detailed engineering, construction drawings, and technical specifications. We also coordinate with regulators and stakeholders to ensure the project meets all provincial and federal dam safety standards.

Common rehabilitation and design services include:

• Restoring or upgrading spillways, embankments, and outlet works
• Improving stability, seepage control, and erosion protection
• Integrating modern monitoring systems and operational improvements
• Enhancing hydraulic capacity to meet updated design flood requirements
• Extending the service life of aging infrastructure through targeted repairs or full reconstruction

Our goal is simple: deliver safe, durable, and cost-effective designs that position owners for decades of reliable operation. Whether you manage a small municipal structure or a complex high-hazard dam, we provide the expertise needed to bring your asset up to today’s standards—and keep it there.

Installation and Interpretation of Monitoring Equipment

Modern monitoring systems are essential to understanding how a dam is performing and detecting early signs of distress. Our team provides complete services for selecting, installing, and interpreting monitoring equipment tailored to each dam’s unique design and risk profile.

We work with owners to identify the most effective instrumentation—such as piezometers, inclinometers, settlement gauges, flow measurement devices, automated water-level systems, and remote surveillance tools. Every installation is completed to meet regulatory standards and ensure long-term reliability.

But having instruments is only half the story. The real value comes from understanding the data. Our engineers provide ongoing interpretation and analysis to help owners distinguish normal behavior from potential warning signs. We translate complex readings into clear, actionable insights, allowing operators to make informed decisions and maintain compliance with dam safety guidelines.

Our monitoring services include:

• Selection and installation of geotechnical and structural instrumentation
• Data acquisition systems and automated remote monitoring
• Baseline performance assessments and threshold development
• Regular data interpretation and reporting
• Integration of monitoring results into Dam Safety Reviews and Management Plans
• Troubleshooting and calibration of existing systems

With accurate instrumentation and expert analysis, dam owners gain the confidence that their structure is performing as expected — backed by dependable data and professional oversight.

Flood Studies and Development of Regional Hydrologic Models

Understanding how water moves through a watershed is essential for protecting communities, infrastructure, and the long-term performance of a dam. Our team provides comprehensive flood studies and regional hydrologic modeling to help owners evaluate flood risks, meet regulatory requirements, and make informed engineering decisions.

We develop basin-wide hydrologic models that simulate rainfall, runoff, infiltration, routing, and reservoir response under a wide range of scenarios. These models incorporate the latest climate data, updated Intensity-Duration-Frequency (IDF) curves, and modern design storm standards. This ensures your dam or infrastructure is evaluated based on today’s conditions — not outdated assumptions.

Our flood studies provide dam owners with a clear understanding of:

• Inflow design floods and probable maximum flood (PMF) calculations
• Watershed behavior during extreme storm events
• How upstream and downstream conditions influence dam safety
• Climate change impacts on hydrologic response
• Reservoir routing, spillway performance, and storage requirements

We use industry-leading software such as HEC-HMS, HEC-RAS, SWMM, and other watershed-scale tools to develop detailed, reliable hydrologic models. From regulatory submissions to long-term planning, our studies help owners confirm their infrastructure meets modern safety standards and is prepared for future hydrologic challenges.

Whether you require a full PMF study, a regional model for multiple dams, or a focused assessment for a single watershed, we deliver accurate, defensible results backed by strong engineering expertise.

HEC-RAS Modeling

Hydraulic performance is one of the most critical factors in assessing the safety and functionality of a dam or waterway. Our team provides specialized HEC-RAS modeling services to evaluate how water moves through channels, spillways, rivers, and floodplains under a wide range of flow conditions.

HEC-RAS allows us to simulate complex hydraulic behaviour — from steady-state flow to unsteady flood routing and dam breach scenarios. Our models incorporate high-resolution topographic data, surveyed cross-sections, updated hydrology, and realistic boundary conditions to ensure accurate, defensible results.

We use HEC-RAS to support:

• Spillway capacity assessments
• Flood routing and inundation mapping
• Dam breach modeling and consequence analysis
• River and channel hydraulics
• Floodplain delineation and regulatory submissions
• Sediment transport and geomorphic assessments
• Design and rehabilitation of hydraulic structures

Every model is customized to the site, the regulatory framework, and the owner’s specific needs. Whether we’re evaluating how a dam responds during extreme floods or designing upgrades to improve flow capacity, we provide clear results and actionable engineering recommendations.

Accurate HEC-RAS modeling is essential for meeting dam safety requirements, guiding infrastructure design, and protecting downstream communities. Our team delivers hydraulic analyses that owners can trust — built on strong technical expertise and modern engineering tools.

Operations and Maintenance (O&M) Plans

A well-developed Operations and Maintenance (O&M) Plan is essential for ensuring a dam is operated safely, inspected regularly, and maintained in a way that supports long-term performance. Our team develops comprehensive O&M Plans tailored to each dam’s design, risk level, regulatory requirements, and operating environment.

An effective O&M Plan provides dam owners and operators with clear guidance on day-to-day activities as well as long-term maintenance strategies. We outline the procedures, schedules, responsibilities, and documentation needed to ensure the dam remains safe, compliant, and operationally reliable.

Our O&M Plans typically include:

• Routine inspection schedules and checklists
• Clear operational procedures for gates, valves, and spillways
• Maintenance requirements for structural, mechanical, and electrical components
• Reservoir operation guidelines and normal operating ranges
• Emergency inspection triggers and abnormal condition response steps
• Record-keeping templates and documentation protocols
• Roles, responsibilities, and communication pathways
• Integration with Dam Safety Management Plans and Emergency Preparedness Plans

We work closely with dam owners to ensure the plan is practical, easy to follow, and aligned with real-world operating conditions. Whether your dam is newly constructed, recently rehabilitated, or simply requires updated documentation, we provide a plan that improves operational consistency and reduces risk.

With a strong O&M Plan in place, owners gain confidence that the dam is being operated responsibly and maintained proactively — ensuring long-term safety, compliance, and performance.

Low Flow Studies

Low flow conditions can significantly impact a dam’s operation, downstream ecosystems, water supply, and regulatory compliance. Our team provides detailed low flow studies to help dam owners understand minimum flow requirements, assess hydrologic reliability, and ensure responsible water management during dry periods.

Low flow studies analyze how rivers and reservoirs behave during droughts, seasonal lows, and controlled releases. Using long-term hydrologic data, watershed models, and regulatory criteria, we evaluate the dam’s ability to maintain required environmental flows, meet water supply demands, and support ecological health downstream.

Our low flow assessments typically cover:

• Analysis of historical low flow records
• Assessment of environmental flow needs
• Reservoir operation strategies during drought or reduced inflows
• Determination of minimum release requirements
• Evaluation of water availability and reliability for users
• Impact of climate change on future low flow conditions
• Integration with O&M Plans and regional hydrologic models

These studies provide owners with practical, defensible recommendations for managing limited water resources while meeting environmental and regulatory obligations. Whether your dam supports hydroelectric generation, municipal supply, irrigation, or habitat flows, we help you plan for dry conditions with confidence.

Our approach ensures that your dam operates sustainably — balancing operational needs, ecosystem protection, and long-term water resource stewardship.

Dam Break and Inundation Modelling

Dam break and inundation modelling is a critical component of dam safety and emergency planning. These studies evaluate how a potential dam failure would unfold, how quickly floodwaters would travel downstream, and which areas, people, and infrastructure would be impacted. Accurate modelling supports informed decision-making, regulatory compliance, and effective emergency preparedness.

Our team conducts detailed dam breach analyses using industry-standard tools such as HEC-RAS, integrating high-resolution terrain data, reservoir characteristics, breach parameters, downstream conditions, and hydrologic inputs. The result is a realistic simulation of flood wave progression and inundation extents.

Our dam break and inundation modelling services include:

• Breach parameter development based on dam type and failure modes
• Hydrodynamic modelling using both steady and unsteady flow methods
• Flood wave routing and timing analysis
• Mapping of inundation extents, depths, velocities, and arrival times
• Consequence assessments for homes, infrastructure, and critical facilities
• Integration with Emergency Preparedness and Response Plans
• Support for regulatory submissions and public safety planning

We provide clear, defensible results supported by detailed technical documentation and easy-to-understand mapping. Our focus is on helping dam owners understand downstream consequences and work proactively with regulators, emergency managers, and stakeholders to protect communities.

Accurate dam break modelling helps owners reduce risk, improve emergency readiness, and operate their dams with confidence.

Emergency Preparedness and Response Plans (EPRPs)

Emergency Preparedness and Response Plans are essential for protecting communities, infrastructure, and the environment in the event of a dam-related emergency. These plans provide clear, actionable procedures that help dam owners, operators, and emergency officials respond quickly and effectively during abnormal or high-risk situations.

Our team develops comprehensive EPRPs tailored to each dam’s characteristics, risk classification, downstream communities, and regulatory requirements. We work closely with owners and local emergency agencies to ensure the plan is practical, realistic, and easy to implement under pressure.

Our Emergency Preparedness and Response Plans typically include:

• Identification of potential emergency scenarios and failure modes
• Notification procedures and communication pathways
• Roles and responsibilities for owners, operators, and emergency officials
• Flood inundation mapping and consequence summaries
• Trigger levels, warning signs, and decision-making protocols
• Emergency response actions for each scenario
• Public safety considerations and evacuation planning
• Contact lists, templates, and quick-reference checklists
• Integration with Dam Safety Reviews and Dam Break Analyses

We also support training sessions, response drills, and plan updates to ensure everyone knows what to do before an emergency occurs. With a strong EPRP in place, dam owners are better equipped to protect the public, reduce liability, and meet provincial and federal regulatory expectations.

A well-prepared response can make all the difference — and our plans give dam owners the confidence to act quickly and effectively.

Failure Modes & Risk Analysis

Failure Modes & Risk Analysis is a critical component of modern dam safety management. Our team applies structured, industry-recognized methods to identify, assess, and manage the risks associated with dam infrastructure, supporting informed decision-making and regulatory compliance.

What Is Failure Modes & Risk Analysis?

Failure Modes & Risk Analysis evaluates how a dam could potentially fail, why those failures might occur, and what the consequences would be if they did. The process systematically examines structural, geotechnical, hydraulic, and operational components to identify credible failure modes and assess their likelihood and impacts.

This analysis provides dam owners with a clear understanding of their dam’s risk profile and helps prioritize mitigation measures, monitoring, and capital investments.

Our Failure Modes & Risk Analysis Services Include:

• Identification of credible failure modes across all dam components.
• Evaluation of potential initiating events, loading conditions, and deterioration mechanisms.
• Assessment of likelihood and consequences of failure scenarios.
• Risk ranking and prioritization to support asset management and capital planning.
• Integration with Dam Safety Management Plans (DSMPs) and Emergency Preparedness and Response Plans (EPRPs).
• Support for consequence classification and regulatory reporting.
• Facilitation of workshops and collaboration with owners, operators, and regulators.

Why Failure Modes & Risk Analysis Is Important

Understanding how and why a dam could fail is essential for protecting public safety, the environment, and downstream infrastructure. Failure Modes & Risk Analysis allows dam owners to move beyond reactive management and adopt a proactive, risk-informed approach to dam safety.

Why Choose Us?

Our team combines dam engineering, geotechnical, and hydraulic expertise with practical operational insight. We deliver Failure Modes & Risk Analyses that are technically robust, clearly documented, and directly applicable to real-world dam management, helping owners demonstrate due diligence and strengthen long-term dam safety.