Evaluation of turbine intake modifications at Bonneville Dam second powerhouse, 2002

Monk, Bruce H.; Sandford, Benjamin P.; Brege, Dean A.; Ferguson, John W., 1952-

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Evaluation of turbine intake modifications at Bonneville Dam second powerhouse, 2002

2004
By Monk, Bruce H. ; Sandford, Benjamin P. ; Brege, Dean A. ; ...

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Personal Author:

Monk, Bruce H. ; Sandford, Benjamin P. ; Brege, Dean A. ; Ferguson, John W., 1952-
Corporate Authors:

Northwest Fisheries Science Center (U.S.). Fish Ecology Division. ; United States. Army. Corps of Engineers. Portland District.
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)
Description:

In 2000, the U.S. Army Corps of Engineers conducted hydraulic model studies to evaluate flow in the second powerhouse intakes at Bonneville Dam. As a result of these evaluations, three modifications were proposed to increase upward flow toward the intake gatewells: 1) Increase the size of the vertical barrier screen (VBS) by removing a portion of the concrete beam below it. 2) Install a turning vane below the picking beam on the submersible traveling screen (STS). 3) Install a gap-closure device on the intake ceiling downstream from the top edge of the STS. In addition, to meet new design criteria for salmonid fry established by NOAA Fisheries, screen mesh openings on the new VBS were decreased to reduce impingement of fry.
Keywords:

Effect Of Dams On Fishes Migration Research Effect Of Dams On
Format:

PDF
Document Type:

Non-series Report
Funding:

Contract no. W66QKZ80545753
Place as Subject:

Bonneville Dam (Or. and Wash.) ; Columbia River
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Library
Main Document Checksum:

urn:sha-512:d45283641491101fa853a2e1dd1794379fa2fba7a968de2a567731a5dde427ba1c5b5c44ad0f60d8557cc1b7d58c345089e4538ec1ba9285b50dc023702681e4
Download URL:

https://repository.library.noaa.gov/view/noaa/50183/noaa_50183_DS1.pdf
File Type:

[PDF - 14.51 MB ]

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