Hi,
I am very interested in civil engineering and economics. Is there are a university where I can study both of them? Is it even possible?
If you want to have both majors, it would be a very crowded schedule to fit all of the courses into eight semesters of normal course loads.
On the other hand, doing a major in civil engineering while taking some out-of-major electives in economics is certainly doable.
Will Civil engineering with a minor in economics work for you?
You could probably do it at Northwestern University.
At NU, getting a Civil Engineering degree from the McCormick School of Engineering and Applied Science involves 16 major courses, as well as 32 other classes, which include 7 classes in one “theme”, and 5 unrestricted electives (that adds up to 48 in total, because NU is on the quarter system) (http://www.mccormick.northwestern.edu/civil-environmental/undergraduate/civil-engineering/curriculum-requirements.html). Economics, in the Weinberg College of Arts and Sciences (WCAS) requires 6 core courses, 6 electives, and 5 courses in related fields (http://www.economics.northwestern.edu/undergraduate/degree/major.html).
Econ’s 5 related courses can all be covered by Civil Engineering course material. The 12 remaining Econ courses can be divided between the 7 theme classes and 5 unrestricted electives. So its doable!
There is, of course, a setback to this. Unless you have AP Calc credit coming in, this plan will require that you take literally all of your expected 48 classes in Civil Engineering and Economics. If you have AP credit, though, you will be able to take a couple classes not bound to either major, depending on how many math classes you can get out of. On second thought, though, that isn’t half bad. I’ve done the same by being in McCormick and pursuing a German minor (total of 11 classes outside the engineering curriculum for me, as opposed to the 12 you’d have to do), all after switching to McCormick from WCAS, and I still get to take a few classes unrelated to my major or minor!
If you have any questions, or want to hear from an actually legitimate source, you should contact someone at Northwestern. Here’s NU’s admissions page, I’m sure you can find someone to contact there: http://admissions.northwestern.edu/academics/
I hope you find this useful, and I regret that I can’t give you solid info on any other schools, seeing as I go to NU and therefore don’t have intimate knowledge of other schools’ programs.
Wow, thank you!
@thatrunnerkid Do you think IB Math Sl Calc can count as credit? I am an international student doing the IB program and we don’t have AP classes 
@inshm2016 check out the following link. Toward the bottom of the page, you’ll find info about IB credit at McCormick. I’m not really that knowledgeable about IB classes, but it seems that you need to take HL calc to get credit at NU. Again, my opinion is that of an amateur, so reach out to some people at NU if you want a real answer.
http://www.mccormick.northwestern.edu/academics/undergraduate/admissions/transfer-ap-ib-credits.html
FYI, more common at Northwestern than a Civil Engineering / Economics dual degree is one in Industrial Engineering (IEMS) and Economics. I know its not exactly what you want seeing as Industrial and Civil Engineering are very different beasts, but there is more of a precedent for it at NU. It may or may not be worth looking into. At worst it can serve as a roadmap for planning a Civil Engineering / Econ dual degree for you.
Industrial Engineering: http://www.mccormick.northwestern.edu/industrial/undergraduate-program/index.html
IEMS and Econ program: http://www.mccormick.northwestern.edu/industrial/documents/undergraduate/ie-econ.pdf
@thatrunnerkid
Thank you for all your help! 
@inshm2016 I’m glad to help. If you have any other questions about NU that don’t involve this subject, feel free to PM me.
Lehigh has the IBE Honors program. It’s integrated Business and Engineering. Very rigorous, more difficult to get into than the school itself, and you need to maintain a certain gpa to stay in the program. You pick a concentration of business, I believe economics is one. I might be wrong. And you pick an engineering concentration. It’s a great program and Lehigh is a great school.