Second, depending on the University. You would also do well to go to a school local to where you would like to eventually live. There is often a lot of field studies and it helps a lot if you are planning on staying in the general vicinity.

It is not necessarily a Civil Engineering – specialty. At my University it was part of the Geography department – although there was quite of bit of engineering elements so you will need advanced math proficient.

You also need a background in public policy.

Well, a degree (or at least classes) in public administration would be very helpful. So would prerequisites in landscaping, architecture, and civil engineering.

You will need to understand construction basics, but mainly you will deal with the public and their needs, and a background in public administration would be best.