Dangers here : https://www.google.com/maps/d/u/0/viewer?mid=1TnajnD7qod7trxS5mjwbfIbz82YB17d6&ll=43.97117640411553%2C7.5343535500000325&z=13

At 43.98454,7.54961 there are two bigger rocks that make a syphon. Eddy out on the left before the bridge and traverse right of those 2 rocks into a small drop with an eddy.

the gauge is very hard to reach as you cannot get close enough.

here is a picture showing it that might help reading it. on that day it was at 30cm. you can barely see the 100cm mark. the top is 140cm.

to get an idea about the difficulties, you could inspect two features.

to reach the first, take the exit between the two tunnels. drive 500m upstream along the river until you reach a bridge. the feature is right there.

for the second feature, walk up from the exit along the river. the road is heavily weathered and barred. after 800m you reach the gauge. another 100m up and you see a cateract with big stones and quite some gradient.

to get info about the level of this section, contact one of the rafting companies in breil. for example:

https://www.nicerafting.com
tel +33 6 81 56 21 56
coords: 43.940391, 7.516429

Lattenpegel bei 800m oberhalb der Brücke von Gémion:

NW=0 cm
MW=20 cm
HW=30-60 cm