buoy rope stretched over the current of irrigation canal

buoy rope orellana irrigation canal vegas altas del guadiana badajoz extremadura spain huge deep wide strong current hydraulic infrastructure water supply agriculture outdoors flow ladders eddies safety drowning prevention rescue help travel farmlands countryside hydrological plan concrete summer season full eucalyptus fruit crops pines reflections freshwaters stream flowing hydrology watercourse cubic hectometers control station fllogates engineering fast stretched canal