Woman holding a binder giving an OK hand gestureCongratulations on completing the cHECk-RAS 2.0.1 Tutorial Overview section! Here is a summary of what we have learned thus far:

  • cHECk-RAS 2.0.1 is a program that was developed by the Federal Emergency Management Agency to allow users to check the validity of input and output data in HEC-RAS.
  • cHECk-RAS only flags areas of potential error or concern, and the user must determine if modifications to the HEC-RAS model are warranted.
  • cHECk-RAS checking programs cover the following five areas:
    1. The NT Check: evaluates Manning's n and Transition loss coefficent values.
    2. The XS Check: evaluates cross section placing, flow regimes, as well as ineffective flow area modeling.
    3. The Floodway Check: evaluates floodway method, and flow regimes within floodway for open channel and bridge sections and surcharge.
    4. The Structure Check: evaluates type of flow, structure coefficients, approach section, roadway/weir, and expansion section data and placement, and ineffective flow.
    5. The Profiles Check: evaluates the starting water-surface elevation methods, and compares water-surface elevations and top widths for selected profiles.
  • The major updates included with the cHECk-RAS Version 2.0.1 release.

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