Thanks folks. I was/am specifically looking for information on those places where a consolidated dispatch center has been created and is operational - i.e. where dispatchers for multiple areas are physically located in one dispatch center and share the duties of dispatching for multiple entities.
Here is the Wiki link... feel free to update it. You'll see the questionable entries. I had read a document online somewhere that in the end there was supposed to be 21 consolidated dispach centers - but I've got 20 listed already with quite a few unknowns. So something doesn't jive unless I've got some information wrong or unless the OSP has decided that they needed more dispatch centers than originally planned.
Ohio State Highway Patrol (OSP) (OH) - The RadioReference Wiki
Mike