For additional information and finding special hours during holidays and when classes aren't in session, they provide phone numbers for you to call. The two main libraries of interest at Duke are Perkins, the main general library, and Teer Engineering library. We have interlibrary loan privileges with both Duke and State. At Duke, I believe you need it validated at Perkins before you can borrow anything at Teer. You can get campus maps of Duke and State by going to Davis and borrowing the course catalogs for the two schools from one of the reference desks.
Campus maps are inside the catalogs.
Teer Engineering is on Science Drive, and Perkins is close by, next to the Chapel. D.H. Hill is a huge building right on Hillsborough Street. We have many alumni in the Department who are from these two schools, so track one of them down and ask for directions. Unfortunately, parking at Duke and State is limited, much in the way parking here at UNC is. Lots can fill up in the evening as well, because of evening classes and students coming in to study.