Hydraulics & Waterways

Oral

397115 - Overview of physical model application at varying scales to inform project design.

Tuesday, June 5
8:30 AM - 10:00 AM
Location: Greenway CD
Co-Authors: Darren Hinton, Seattle, WA – Northwest Hydraulic Consultants Inc.; Brian Hughes, Vancouver, BC – Northwest Hydraulic Consultants Ltd.

Recent river engineering work conducted on three different projects highlights the strengths of physical modeling as a tool in designing river restoration projects and predicting river response. The projects of interest include the removal of a low-head irrigation dam in Central Washington, installation of a fishway in Southern California, and a gravel removal project aimed at creating habitat at a river confluence in Western Washington. To support the design of these three projects, four models were designed and constructed, which ranged from table-top size to filling an entire laboratory, and all interfaced well with numerical modeling. The model scales ranged from an undistorted 1:6 to a distorted 1:180 scale and measurement techniques were uniquely designed for each project to answer specific questions and match a variety of budgeting constraints. This work showcases the ability of physical models to provide valuable design input for a wide range of river restoration projects.

Peter C. Brooks, P.E.

Senior Engineer
Northwest Hydraulic Consultants Inc.

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