I am applying as a civil engineering major, but I do not know what to list as my second choice. I was thinking math or construction science, but I am clueless. Opinions?
I don't think you are clueless because obviously there must a be a good reason why you are drawn to infrastructure like roads, tunnels, aqueducts, bridges, dams, pipelines, power plants, sewage treatment plants, railroads/train stations/subways, airports, and harbors right?
All these things are closely related to architecture and certainly, with airports, bridges, power plants, train stations, I'd argue they are exactly the same job. Therefore, if you like that sort of thing, I would pick architecture as your second choice because it involves the design, planning, and construction of such systems.
Both architecture and Civil engineering require math (calculus), physics, and other core disciplines and these 2 professions would have the closest overlaps.
I don't think I put pure maths in the same category. Construction science is something I would study if my goal was to join a construction firm like Skanska, Bechtel, or Turner.
Good luck
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Thank you for your response. Construction sciences is what I ended up choosing because, like you pointed out, it is more closely related to civil engineering.