Introduction of the "Terraced Fishway" case: Fishway design/construction on the Asukagawa River in Gifu Prefecture.
[Case Study] Improving upstream efficiency with a unique design! The terraced fishway solves the issues of traditional fishways.
In conventional fishways, there were challenges such as difficulty in guiding fish to upstream routes and sediment accumulation within the fishway, which reduces its functionality. These issues are addressed by Yamatazumi's "Terraced Fishway," which features a unique shape utilizing natural stones. We also provide explanations about the terraced fishway, consultations on fishway design (including drawing creation and quantity calculation), proposals, and assistance, so please feel free to contact us. 【Case Study】 ■Project Name: No. 2 General River Basin Disaster Prevention (River Environment Project) Construction ■Construction Location: Asukagawa (Gifu Prefecture) ■Construction Photos: Please see the construction photos on this page. 【Reasons to Choose the "Terraced Fishway"】 ■Fish can ascend from any direction due to the 180-degree design, preventing fish stagnation. ■It has a maintenance-free structure that prevents sediment accumulation inside the fishway. ■Thanks to its unique structure that can adapt to changes in water levels, it allows water to flow from the collection ditch under the floor during low water periods. ■By realizing the concrete secondary productization as terraced fishway blocks, we achieved stable quality and simple construction for the fishway. *For more details, please contact us or download the catalog to view.
- Company:山辰組
- Price:Other