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Author:
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 2
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Author:
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 2
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Author: Mufeed Odeh
Publisher:
ISBN:
Category : Reference
Languages : en
Pages : 176
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Author: Willis A. Evans
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 132
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Author: Mufeed Odeh
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 240
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Book Description
Odeh (Conte Anadromous Fish Research Center) presents 13 contributions which explore the technical possibilities of constructing effective fish bypass systems for hydroelectric dams, especially those that are due for relicensing in the context of new regulations. The articles consist of case studies in the effectiveness of such techniques as surface bypass systems, modular inclined screens, hydroacoustic evaluation of fish entrainment patterns, surface collection, surface spill gates, and radio-tagging and radar tracking behavior evaluation strategies. Annotation c. Book News, Inc., Portland, OR (booknews.com).
Author: National Fish Passage Program (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 54
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Author: Calvin O. Baker
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 84
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Book Description
The success of fish migration through culverts is dependent on the swimming ability of the fish and the hydraulic conditions of the culvert. Properly designed and constructed culverts can minimize the impact on fish passage. Because culverts are typically more economical than bridges, it is appropriate to evaluate when to use culverts and to predict the effects of such culvert installations. During the consideration of alternatives for structures for fish passage, culverts should not be automatically eliminated. This publication has tried to examine the aspects of culvert design and operation relative to the existing information that has been published in previous studies. Ideally, a culvert installation should not change the conditions that existed prior to that installation. This means that the cross-sectional area should not be restricted by the culvert, the slope should not change, and the roughness coefficients should remain the same. Any change in these conditions will result in a velocity change which could alter the sediment transportation capacity of the stream. A truly successful culvert design would include matching the velocities of the fish's swimming zone in the culvert to the swimming capacity of the design fish. Unfortunately, not enough research has been completed to make this an acceptable criterion of culvert design. This approach is preferred because it is easier to reduce the velocities in the swimming zone by increasing the boundary roughness than it is to reduce the mean velocity of the entire culvert. This publication contains some relatively simple guidelines which can reduce the installation problems of culverts in streams containing migrating fish when combined with the expertise of an experience fish biologist, engineer, and hydrologist.
Author: United States. Army. Corps of Engineers. North Pacific Division
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 242
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Author:
Publisher: DIANE Publishing
ISBN: 1428920161
Category :
Languages : en
Pages : 174
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The focus of this report is technologies for fish passage around hydropower generation facilities and protection against entrainment and turbine mortality. Emphasis is given to Federal Energy Regulatory Commission (FERC)-licensed hydropower projects where fish protection is a subject of controversy and congressional interest due to the Federal Power Act (FPA) and the Electric Consumers Protection Act (ECPA). Thus institutional issues related to FERC-relicensing are also discussed. (Major points of controversy are high-lighted in box 1.1).
Author:
Publisher: Office of Technology Assessment
ISBN:
Category : Nature
Languages : en
Pages : 180
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Author: United States. Congress. Senate. Committee on Energy and Natural Resources
Publisher:
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 8
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Book Description
