Hydrology & Hydraulics

The study of water, including its properties and behavior, entails the application of hydrologic and hydraulic principles and methods. Hydrologic analyses are performed to quantify the volumetric flow rate of water draining from a watershed drainage area over time. The amount of water that flows from a watershed depends on the characteristics of the watershed (e.g., size, land cover, antecedent moisture, and steepness) and the presence of water (e.g., the intensity and duration of a precipitation event, rate of snowmelt, or flow from a dam). Hydraulic analyses are performed to determine the depth of flow, flow velocity, and forces from flowing water on a surface or at hydraulic structures. These studies are necessary components in the hydraulic design and analysis of structures.

Our project experience and expertise includes:

• Rainfall-runoff analysis
• Watershed modeling and analyses
• Hydraulic analyses
• Hydraulic design of flood protection channels
• Overland flood routing
• FEMA floodplain mapping
• Water availability forecasts
• Water use planning
• Aerial photography and topographic map interpretation
• Geographic Information System (GIS) database creation
• Dam and reservoir management
• Wetland and riparian habitat management and restoration
• Coordination with federal, state, and local agencies

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