Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Granite Falls, Wash, fishway consists of 285-ft tunnel hewn out of solid rock; upstream exit of tunnel is located some 50 ft higher than downstream intake structure; tunnel structure is 6 ft wide and 12 ft high with semicircular roof; about 50 holes, 5 1/2 to 6 ft deep were drilled into rock and each lift was shot with 150 lb of 60% Pacific powder.
Granite Falls, Wash, fishway consists of 285-ft tunnel hewn out of solid rock; upstream exit of tunnel is located some 50 ft higher than downstream intake structure; tunnel structure is 6 ft wide and 12 ft high with semicircular roof; about 50 holes, 5 1/2 to 6 ft deep were drilled into rock and each lift was shot with 150 lb of 60% Pacific powder.
World's longest vertical baffle fishway
Pac Bldr Engr
Thomas, M.A. (Autor:in)
1954
Aufsatz (Zeitschrift)
Englisch
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