Go to http://www.tva.gov/lakes/aph_r.htm for flow info. It predicts flows for the next 3 days as well as lists observed flows from the current day. As long as the amount of generators says "0" and then the average outflow is what is in the dries. 1000 is minimum, 2300 is a nice solid flow, 4000 is getting high.
Here is the shuttle from googlemaps: http://maps.google.com/maps?f=d&source=s_d&saddr=Forest+Rd+236&daddr=Forest+Rd+236&hl=en&geocode=Fe_SGAIdH5H3-g%3BFa60GAIdHGn4-g&mra=me&mrsp=1,0&sz=14&sll=35.171774,-84.39929&sspn=0.038448,0.055189&ie=UTF8&ll=35.171423,-84.406414&spn=0.076896,0.110378&t=p&z=13
You can get to the shuttle area from the road to Lost Creek campground from the west, or from Farner off Hwy 68 to the east. You'll need a gazeteer or mapping device.
At the current flow, the first rapid is a BIG class 4 with several places you don't want to be. There are a few more rowdy rapids then a lull before the action picks back up around Coker Creek confluence. Then as you approach the narrows there are some epic glassy waves to surf. Not big, just stable and all day type waves. The narrows are weird, and then there is a final really long zig zag rapid with holes and trees. The last mile to the powerhouse is pretty flat. Yesterday was amazing, as the storm was rolling in with black clouds amidst a blue sky full of billowy pink clouds. Didn't see a soul.
Bring your playboat if you like on the fly surfing.