Author: Thomas J. McClellan
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 326
Book Description
Fish Passage Through Highway Culverts : a Field Evaluation
Author: Thomas J. McClellan
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 326
Book Description
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 326
Book Description
Water/road Interaction Technology Series
Author:
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 306
Book Description
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 306
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1932
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1932
Book Description
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
Book Description
Fish Passage Through Culverts
Author: Calvin O. Baker
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 84
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.
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 84
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.
Selected Library Acquisitions
Author: United States. Department of Transportation
Publisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Fisheries Review
Author:
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 954
Book Description
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 954
Book Description
A Hydraulic Evaluation of Fish Passage Through Roadway Culverts in Alaska
Author: Douglas L. Kane
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 252
Book Description
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 252
Book Description
Fish Passage at Road Crossings
Author: Lynette Anderson
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 16
Book Description
Sport Fishery Abstracts
Author:
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 386
Book Description
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 386
Book Description