When we paddled this section 17 m^3/s @Raon-'Etape, there was enough water.
But I would not recommend this section due to the abundance of trees (3-4 forces portages and 4 paddleable) and no real whitewater. When we paddled around halfway there was also industrial wastewater discharged into the river which smelled really bad, sadly because other than that the landscape is quite beautiful.
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