Is this under AL DOT?

This is still an issue.

Agreed, this is an issue. The sharpness of this curve causes all the "right-turners" here to slow down to 35? MPH, which further slows the merging on AL255 between Old Madison Pike and I-565. This is part of the reason there's such a back-up in this area at evening rush hour.

I'm thinking this is an ALDOT issue...

Same here.

Has anyone contacted ALDOT regarding this issue?

This issue shows up as being in unincorporated Madison County on the map. Requesting to close this issue since is almost 3 years old.

It's highly unlikely that this would be unincorporated Madison County being right in the middle of Huntsville, but it would be ALDOT's responsibility, except I don't remember what they said about it.