HEC-Pack

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HEC-RAS provides graphic tools to display the calculated water surface profiles.

Use HEC-RAS (3.1) for determining water surface elevations throughout a river network, and analyzing bridges and culverts.

Hydraulics

• Use the unsteady flow routing features for dam break analysis and levee breaching.
• Calculate water surface profiles based on steady, gradually varied flow for channel networks, dendritic systems, or a single river reach.
• Evaluate floodway encroachments for floodplain management and insurance studies.
• Handle rapidly varied flow conditions automatically, such as hydraulic jumps and bridge contractions.
• Include in-line weirs and gated spillways in the river system.
• Compute bridge scour based on the routines outlined in HEC-18 from the Federal Highway Administration.
• Follow the methods for low-flow computations laid out by the Federal Highway Administration using the WSPRO bridge routines.
• Analyze culverts under supercritical and mixed flow regimes, and even adverse slopes.

Output

• View the results three-dimensionally with X-Y-Z perspective plots.
• Use the built-in tables to create standard reports, including cross-section tables, bridge tables, culvert tables, 
• Include the graphical river system schematic, cross-sections, profiles, and more in your final report.

Additional Features:

1. HEC-GIS (aka HEC-GeoRAS)
2. Hydrologic Modeling with HEC-HMS
3. River Analysis with HEC-RAS
4. Flood Hydrology Calculations with Graphical HEC-1

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