Note that I try to keep this info up-to-date, but be sure to check the web links, and also check with these parks & locations to be 100% sure (I could be wrong, and sometimes their rules change...)
Lake Harris is just southeast of Jordan Lake, and is the lake that Shearon Harris nuclear reactor is on. This is a WRC boat ramp at the south end, near the dam.
(35.573753,-78.975821)
Google Satellite Map