About the Pacuare River flow
There is no automated flow gauge on the Pacuare River. Being a jungle river with many tributaries the river levels are highly variable and can rise and flood quickly.
There is, however, a visual indicator of water flow just downstream of the Rios Tropicales lodge and upstream of the foot bridge. It is located on river left and is painted onto a rock. The photos are below showing what to look for. The main item, is if it is at the red level or higher, then you should not continue.