If it's an undergraduate degree just get it done, you can do all kinds of things with a civil engineering undergraduate degree. It seems you might imply you picked your major when you were young and had no idea what you actually wanted. The same thing happened to me, and from the UG student perspective it seems like your degree type will define you, but reality is with something as broad as civil it won't. You could get into graduate schools for basically whatever you'd want to do. From marine science to graphical design to creative writing, and of course engineering.