Ice Harbor Spillway Dissolved Gas Field Studies: Before and After Spillway Deflectors

Abstract

Based on the results of the Dissolved Gas Abatement Studies, spillway deflectors were adopted for Ice Harbor as a measure to reduce the total dissolved gas (TDG) production during spill operations. Three field studies were conducted at the Ice Harbor Spillway on the lower Snake River to characterize the effects of spill operations on TDG in the Snake River. The first two studies examined TDG production for the original spillway design. The third study characterized TDG production with flow deflectors installed on the spillway face. TDG was significantly reduced for nearly all spill operations with deflectors in place. TDG near the stilling basin was reduced from approximately 150 to approximately 124 . TDG at end of the navigation guide wall was reduced from 135 to 114 for similar operating conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2016
Accession Number
AD1013510

Entities

People

  • Michael L Schneider
  • Steven C. Wilhelms

Organizations

  • Coastal and Hydraulics Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Barometric Pressure
  • Buoyancy
  • Columbia River
  • Dissolved Gases
  • Ecology
  • Gases
  • Hydrostatic Pressure
  • Mass Transfer
  • Measurement
  • Navigation
  • Near Field
  • Pressure Measurement
  • Stilling Basins
  • Three Dimensional
  • Turbulent Mixing
  • Underwater Acoustics
  • Water Quality

Fields of Study

  • Environmental science

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