Re: time for the eyes!..need some pointers..
Larry gave you great advice. If you're hemmed in by crowds and fishing from shore, "short line nymphing" may be the only way to go. Larry gave you a very good description on how it's done.
Bring some split shot along to add 12" above your fly in case you need it. You want to be deep enough to feel your fly ticking along the bottom occasionally.
You may also want to have a leader/ tippet length that is about 1.5x the depth of the water. If you're using an indicator, 1.5x the depth of the water below the indicator.
If you do get some room, you can air it out a little with longer casts angling up stream, followed by an upstream mend of fly line to allow the fly to get deep in fast current. Follow the flyline with the tip of your rod as the fly bounces downstream and let it swing in the current below you. You may get something to whack it as it comes off the bottom.
Having some flies that ride hook point up (like clousers) might help reduce snags on the bottom.
I hope the crowds aren't too bad, it sounds like the water depth is perfect for targeting them with a fly rod. Sometimes you can get away from a lot of folks by walking 200yds from the parking lot. If that is an option it might be worth it, as well as getting there early to get some shots in before the crowds arrive.