Developing Guidelines for Two-Dimensional Model Review and Acceptance: Final Report

Two independent modelers ran two hydraulic models, SRH-2D and HEC-RAS 2D. The models were applied to the Lakina River (MP 44 McCarthy Road) and to Quartz Creek (MP 0.7 Quartz Creek Road), which approximately represent straight and bend flow conditions, respectively. The authors compared the results, including water depth, depth averaged velocity, and bed shear stress, from the two models for both modelers. The authors found that the extent and density of survey data were insufficient for Quartz Creek. Neither model was calibrated due to the lack of basic field data (i.e., discharge, water surface elevation, and sediment characteristics). Consequently, the authors were unable to draw any conclusion about the accuracy of the models. Concerning the time step and the equations used (simplified or full) to solve the momentum equation in the HEC-RAS 2D model, they found that the minimum time step allowed by the model must be used if the diffusion wave equation is used in the simulations. A greater time step can be used if the full momentum equation is used in the simulations. The authors developed a set of guidelines for reviewing model results, and developed and provided a two-day training workshop on the two models for ADOT&PF hydraulic engineers.

  • Record URL:
  • Supplemental Notes:
    • Alternate title: Developing Guidelines for Two-Dimensional Model Review and Acceptance
  • Corporate Authors:

    Alaska Department of Transportation and Public Facilities

    Research, Development, and Technology Transfer
    Juneau, AK  United States  99811

    Center for Environmentally Sustainable Transportation in Cold Climates

    306 Tanana Loop, Duckering Building 245
    Fairbanks, AK  United States  99775-5900

    U.S. Department of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Homan, Joel
    • Toniolo, Horacio
  • Publication Date: 2018-1


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Research
  • Features: Appendices; Figures; Maps; Photos; References; Tables;
  • Pagination: 186p

Subject/Index Terms

Filing Info

  • Accession Number: 01661699
  • Record Type: Publication
  • Report/Paper Numbers: CESTiCC Project #1506
  • Created Date: Feb 28 2018 5:04PM