Our hydraulic engineers specialize in 1D, 2D, and 3D HEC-RAS modeling for a wide range of applications—including floodplain studies, dam breach assessments, restoration design, bridge and culvert hydraulics, and rain-on-grid simulations. We blend traditional watershed modeling with cutting-edge techniques to provide results you can trust, even in the most complex environments.

To enhance accuracy and improve risk communication, we developed McBreach©, a proprietary tool that uses Monte Carlo simulations to generate statistical distributions of potential dam breach outflows. This gives stakeholders a clearer understanding of possible outcomes, empowering them to make better decisions and more effective risk management. We’ve also made this tool available to the dam safety community and trained practitioners across the industry free of charge.

Open Channel Flow Analysis, Hydraulic Modeling, Riverine Engineering Services Include:

• Hydraulic Analysis & Design
• 1D
• 2D
• 3D Hydraulic Modeling
• Floodplain Modeling
• Dam Breach Analyses
• Restoration Design
• Bridge & Culvert Hydraulic Analyses
• Rain On-Grid Modeling
• Floodplain Studies
• Inundation Mapping Projects

Navigating FEMA requirements doesn’t have to be complicated—our certified floodplain managers make it seamless.

We provide full-service floodplain modeling and mapping using both 1D and 2D HEC-RAS, delivering accurate, defensible results tailored to your project needs. Whether you’re seeking no-rise certifications or submitting map revisions, including LOMR and CLOMR applications, we guide you through the process efficiently and ensure compliance every step of the way, so you can confidently move forward.

Floodplain Analysis/Management Services Include:

• FEMA Regulatory Expertise
• Floodplain Modeling & Mapping
• Floodplain & Floodway Map Revisions

Whether your project involves hydropower or non-hydropower structures, our team delivers hydraulic design solutions that are practical, precise, and built around your goals.

We’ve completed hundreds of hydraulic design tasks—from straightforward spillways to complex intake structures, weirs, energy dissipation systems, and diversion tunnels. Every project is approached with thoughtful evaluation and the right tools for the challenge, ensuring an efficient and cost-effective solution. By collaborating closely with our in-house experts in hydropower, fish passage, geotechnical, and structural engineering, we provide integrated designs that align with your technical needs, operational priorities, and long-term vision.

Hydraulic Structures Design and Engineering Services Include:

• Hydraulic Design
• Hydropower Structures Design
• Non-Hydropower Structures Design

When it comes to flood risk, accuracy matters, and we deliver hydrologic solutions that withstand scrutiny.

Our team has developed and analyzed Probable Maximum Flood (PMF) hydrographs for dozens of projects across North America, helping clients confidently understand and manage extreme flood scenarios. We also revise flood frequency estimates and apply hypothetical rainfall distributions to create robust, site-specific models that inform safer, smarter decisions.

Hydrologic Engineering Services Include:

• Development of PMF Hydrographs
• PMF Condition Analysis
• Flood Frequency Estimates
• Hydrologic Modeling
• HEC-HMS

We have extensive river restoration design experience with a focus on four general applications: channel and floodplain restoration, fish habitat enhancement, natural upstream passage improvements for fish, and bank stabilization and river training measures that are compatible with natural processes. We have used 1D and 2D hydraulic and hydrodynamic models to develop functional and persistent designs and reach-scale geomorphic assessments of sediment transport, erosion, and flood hazards that affect structural and geomorphic stability of prescribed actions. Application examples include instream and floodplain large wood structures, nature-like fishways, stable and adjustable riverbeds, levee removals and setbacks, floodway modifications, flood protection design, and restoring braiding, anastomosing, and meandering channel courses.

River Restoration Engineering Services Include:

• River Restoration Design
• Channel & Floodplain Restoration
• Fish Habitat Enhancement
• Natural Upstream Fish Passage Improvements
• Geomorphic Assessments
• Action Plan Analysis

Understanding how water flows impact aquatic life is essential, especially when managing hydropower operations or navigating competing water demands.

We use advanced hydraulic and habitat modeling to simulate how water movement affects fish habitat, enabling you to make informed decisions that protect aquatic ecosystems while supporting energy production. Our assessments guide flow regulation, evaluate peaking and ramping effects, reduce stranding risks, and identify opportunities to enhance spawning habitat, ensuring compliance and environmental performance go hand in hand.

We also apply this approach to support instream flow claims for Tribal hunting, fishing, and gathering rights by estimating natural water availability and habitat needs, helping you balance legal obligations with ecological stewardship.

Instream Flow Hydraulic Analysis/Habitat Modeling Services Include:

• Instream Flow Hydraulic Analysis/Habitat Modeling
• Fish Habitat Assessment
• Environmental Impacts Analysis
• Tribal Rights

Using industry-trusted tools like FLOW-3D and Star-CCM+, we solve complex hydraulic challenges across various free surface and pressurized flow systems. From fish passage and spillway hydraulics to gate and bridge design, our CFD models provide detailed, high-resolution data that informs smarter, more effective designs.

We don’t just crunch numbers—we help you tell the story. Our post-processing capabilities turn technical data into powerful visuals and animations that clearly communicate design performance to stakeholders, regulators, and the public, bridging the gap between engineering insight and actionable decisions.

Click below to view examples:

Jet Gate – 2 Fluids Velocity
Jet Gate – 1 Fluid Raytracing
Bridge Geometry Modifications Particles

3D CFD Modeling Services Include:

• Hydraulic Design
• Hydro Engineering Analysis
• Conventional Fish Passage
• Nature-Like Fish Passage
• Spillway Design
• Air-Water Flow Interactions