Almost certainly too low for reasonable whitewater run.
Using the upper put-in has two advantages.
One: the road is much better maintained than the road to the former dam site (which, in early/wet season can be snowpacked or a total mud pit).
Two: You get a little more 'warm-up' before getting to the bigger tougher drops on the run.
When the former-dam put-in is reasonably accessible, some boaters may opt for the shorter run, concentrating on the main gradient, foregoing the one or two smaller drops on the upper part of the run and the 'boogie water' down to the site of the former dam.