Fishway Block Spiral Fishway
This is a fish passage constructed in a spiral shape by stacking blocks that divide the circumference to match the drop height of dams and weirs. This method is implemented with permission from Obayashi Corporation and Obayashi Road Corporation. 【Features】 ○ The ice harbor type and full overflow type can accommodate a wide range of fish species. ○ The circular and spiral shape minimizes the occupied area, allowing for the installation of fish passages up to approximately 10 meters in height. ○ The assembly type using common blocks offers excellent workability. ○ The higher the installation height, the lower the cost per height compared to site-cast stair-type fish passages. *Please contact us for more details.
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basic information
*Please contact us for more details.*
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Applications/Examples of results
【Application】 Applicable to dams and weirs with a large drop height.
Company information
Keikon Co., Ltd. is a comprehensive construction company engaged in the design, construction, manufacturing, and sales of concrete secondary products such as retaining walls, road products, and fire water tanks, as well as bridge and tunnel construction and slipform construction methods, boasting a top-class position in the industry as a manufacturer of concrete secondary products. In terms of the environment, we have established our own internal standards and label our products that are recognized for reducing environmental impact with the "Keko Mark." We will continue to focus on the development of related products more than ever before, aiming for "coexistence between people and nature."
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