Concurrent Sessions C: Multi-Dimensional Modeling and Fish Passage Restoration - The Utility of Hydraulic Modeling in Reviewing Fish Passage Engineering Projects
Location
Agriculture Leaders Theater, Oregon State University
Start Date
25-6-2013 3:30 PM
End Date
25-6-2013 3:50 PM
Description
The National Marine Fisheries Service (NMFS) and other resource agencies frequently review fish passage projects that may affect trust species. What type of hydraulic information is needed to evaluate a proposed project is an important question that project proponents and resource agencies often need to answer. Frequently, the hydraulic information used to design and evaluate a project is obtained through hydraulic modeling. However, selecting an appropriate model (e.g. a 1-D, 2-D, or 3-D numerical model or a physical model) is not always a straightforward decision, as each model has its own pros and cons. Currently, NMFS does not have formal guidelines for determining when a specific type of model is preferable. Experience suggests that every project has its own unique constraints and specific biological goals associated with it. The type of information needed to review the effects and/or suitabilityof a proposed project should reflect the project’s specific constraints and biological goals. Examples of where NMFS has found certain types of hydraulic models to be particularly useful to address both common and unexpected fish passage situations are provided. Factors NMFS considers when evaluating fish passage projects and how this might help guide the selection of an appropriate hydraulic model is also discussed.
Concurrent Sessions C: Multi-Dimensional Modeling and Fish Passage Restoration - The Utility of Hydraulic Modeling in Reviewing Fish Passage Engineering Projects
Agriculture Leaders Theater, Oregon State University
The National Marine Fisheries Service (NMFS) and other resource agencies frequently review fish passage projects that may affect trust species. What type of hydraulic information is needed to evaluate a proposed project is an important question that project proponents and resource agencies often need to answer. Frequently, the hydraulic information used to design and evaluate a project is obtained through hydraulic modeling. However, selecting an appropriate model (e.g. a 1-D, 2-D, or 3-D numerical model or a physical model) is not always a straightforward decision, as each model has its own pros and cons. Currently, NMFS does not have formal guidelines for determining when a specific type of model is preferable. Experience suggests that every project has its own unique constraints and specific biological goals associated with it. The type of information needed to review the effects and/or suitabilityof a proposed project should reflect the project’s specific constraints and biological goals. Examples of where NMFS has found certain types of hydraulic models to be particularly useful to address both common and unexpected fish passage situations are provided. Factors NMFS considers when evaluating fish passage projects and how this might help guide the selection of an appropriate hydraulic model is also discussed.
Comments
David Crowder obtained his B.S. M.S., and Ph.D. in Civil Engineering at Virgia Tech. He subsequently worked at the Illinois State Water Survey before joining the National Marine Fisheries Service 4.5 years ago. His areas of interest include hydraulic modeling, sediment sampling, and fish passage engineering. He has published/coauthored journal articles in the Canadian Journal of Fisheries and Aquatic Science, the Journal of Hydrology, Geomorphology, River Research and Applications, and the Journal of Hydraulic Engineering.