FISHWAY BLOCK FOR SMALL STREAM AND AGRICULTURAL CANAL

摘要

PURPOSE: A fishway block for a small river or an agricultural canal is provided to enable many kinds of fishes to pass therethrough by varying the speed of the current of water and forming a place for a rest. CONSTITUTION: A fishway block(100) for a small river or an agricultural canal comprises a block body(101), a slow speed projection(103), and an inclined projection. The block body has a cross-section shape for forming the fishway. The bottom of the block body comprises a depression which gradually deepens toward the inside. The slow speed projection is projected from the bottom of the block body. The inclined projection is extended from the slow speed projection and is projected from the bottom of the block body.