URL Redirect on a Folder that got renamed

Hi - hoping someone can help. We need to set up some auto redirects on some URL's that we've changed the paths on (folders got renamed).

Example:

OLD URL was:  www.site.com/writingcenter  (this is now a 404)

and NEW URL that works is: www.site.com/writing-center  (has a dash in url now)

We want to set up a redirect so that if anyone had the OLD site bookmarked and went to it, instead of a 404, they just got auto redirected to the new URL.

Hope that makes sense. IS there a way to do this in a Web Config file?