PROBLEM TO BE SOLVED: To provide a runningup water course which can be installed even in a narrow space and forms a growing area necessary for running up for fish and forming an effective water course for running up of young fish.;SOLUTION: The present invention is relative to a running up water course, and it is constituted of a wide water flow formed by laying box-shaped blocks stepwiseto form a wide stream and a narrow stream way formed by U-shaped blocks U-shaped sectional blocks. The narrow stream is installed by installing them in piles so as to cover a part of the upper face of the wide broad stream way. And further, a combination structure in which the box-shaped blocks provided with the level differences and notched parts from the rear wall and the U-shaped sectional blocks projectingly provided with in the vicinity of the forward and rearward positions of the lower side outer face form together. The feature is formed by fitting and installing the U-shaped sectional blocks into the box-shaped blocks.;COPYRIGHT: (C)2002,JPO
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