FISH WAY CONSTRUCTION METHOD AND FISH WAY BLOCK

摘要

PROBLEM TO BE SOLVED: To provide a fish way construction method allowing very easy forma tion of a fish way through which fishes and shellfishes can run up by using fish way blocks which can be harmonized to natural environment, easily installed later in existing head construction and manufactured easily and inexpen sively. SOLUTION: An anchor insertion hole 20 is provided in the apron face 8 of a river crossing construction of head construction. A number of fish way blocks 1 each of which is formed in standardized shape and size and has a concrete surface in natural stone design and an anchor insertion hole 19 inside or in the lower part of the side face are arrayed with both end faces contacting each other. The blocks 1 are installed and fixed on the apron face 8 by anchoring with reinforcing bars and a concrete utilizing the anchor insertion hole 20 in the apron face 8 and the anchor insertion holes 18 in the blocks 1 to form the fish way through which fishes and shellfishes can run up.