The letters at the front of an item's call number correspond to Library of Congress subjects. If you want to browse the collection for construction management and civil engineering books, here are some helpful call number areas (see Finding books on the shelves for additional information on locating call numbers in the library):
ILLiad Interlibrary Loan
For articles not available online or in the library, use an online form to request it via ILLiad - more info.
Articles are usually delivered online in 3-5 days.
MeLCat is the fastest way to borrow a book via interlibrary loan. If you can't find the book in MeLCat, try ILLiad.