The lake is up 5' so the TC ramp banks are flooded, I was there last Saturday. With all the brush and trees you'll likely have to ground the boat on the concrete ramp, or have someone hold you off and afloat. The parking area is high and dry, several folks had launched their boats (5-6 empty trailers in the lot).
I was practicing getting bank-skunked. So, I have no information about fishing above the TC ramp. Except for floating structure
you should be able to get way up the creek.