Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fish Passage Through Highway Culverts
A field review of highway culverts installed with special consideration for the passage of fish was made during the summer of 1970 to determine the effectiveness of various provisions incorporated over a period of years to preserve fish habitat in areas upstream from highway crossings of Oregon streams. Culverts installed throughout the state from 1916 to 1970 were evaluated. Sixty-two culvert sites were visited including several designed without special facilities, but representative of field conditions conducive or otherwise to the passage of fish. Notes made of the condition of the installations and adjacent streambed are included with photographs in the report.
Fish Passage Through Highway Culverts
A field review of highway culverts installed with special consideration for the passage of fish was made during the summer of 1970 to determine the effectiveness of various provisions incorporated over a period of years to preserve fish habitat in areas upstream from highway crossings of Oregon streams. Culverts installed throughout the state from 1916 to 1970 were evaluated. Sixty-two culvert sites were visited including several designed without special facilities, but representative of field conditions conducive or otherwise to the passage of fish. Notes made of the condition of the installations and adjacent streambed are included with photographs in the report.
Fish Passage Through Highway Culverts
T. J. McClellan (Autor:in)
1971
226 pages
Report
Keine Angabe
Englisch
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