Construction and Engineering related cases cover a wide range of subareas including Business, Jobsite Safety, Injury, and Engineering to name a few. Below are some sources to start finding a case file of interest.
Much of the "art" of research involves being clever with search terms and using results to manipulate the search until you find what you want. Below are some search terms that I find generally useful for this subject but are in no way inclusive.
construction
engineer* (the asterisk tells the search to end the word with multiple endings. ie. engineer, engineers, engineering)
job site safety
job site injury