From within Civil 3D, navigate to the Analyze tab , find the Design panel , and click Launch Express . Alternatively, you can type StartExpress at the command line.
If the extension is not visible, it can be added through Add or Remove Programs (or Uninstall a Program) in the Control Panel. Find your Civil 3D installation, select "Change," and ensure the Hydraflow extensions are checked for installation.
Users can compute runoff hydrographs using SCS, Rational, and Modified Rational methods. It also helps estimate required detention storage for pond sizing. From within Civil 3D, navigate to the Analyze
The Hydraflow Express Extension addresses a wide variety of hydraulic and hydrologic tasks using a streamlined, grid-based input system.
The tool computes normal-depth rating curves for various shapes like rectangular, trapezoidal, triangular, and compound gutters. Find your Civil 3D installation, select "Change," and
The is a powerful hydrology and hydraulics toolkit designed to provide civil engineers with fast, reliable calculators for common stormwater tasks directly within their design environment. Rather than building complex network models, this extension allows for rapid preliminary design and quality assurance checks through a simplified user interface. Key Capabilities and Features
It calculates hydraulics for six different inlet types, including curb, grate, and slotted inlets, adhering to standard HEC-22 methodology. The Hydraflow Express Extension addresses a wide variety
For modern versions, extensions can be downloaded directly from your Autodesk Account under the "Extensions" or "Plug-ins" category for your specific Civil 3D version. Integration and Workflow
Engineers can model and design culverts with circular, box, elliptical, and arch shapes. It supports computations for hydraulic grade lines (HGL) across various flow regimes, including roadway overtopping and hydraulic jumps.