There are some situations, such as a winter or fall rainstorm you can't even get close the the creek and just need to wait for the water to go down enough to see if the screen even survived.
As a side note, it is not uncommon for cougar to come down off the road and cross the creek at the dam, which they leap in a single bound. I reckon they are sometimes wary and avoid using the bridge.
They probably do it all the time, but I only see the tracks when there is snow.
Any time there is deer tracks up there, cougar tracks will follow.
Lynx tracks following the same trail.
Pelton wheel shack