It's a matter of optimize the hydraulic profile of an existing river in order to practise white water sports. The river project development can consist in :

• moving existing rocks in the river and add rocks in order to create water movements interesting for white water sports

• re-grade the river bed in order to distibute the slope or to concentrate water

before

after

Creation of a movement against the current with the moving of the rock A near the bank Concentration of the water in the center of the river by reinforcing of the bank with the rocks B and C Separation of the principal water vein by reinforcing of the rock D

Example of slope distribution