I'm an engineer (civil) too. My graduating class had a few other women, but I am the only female engineer in my department at my current job. I like my coworkers and I have gotten used to being the lone wolf. At the job that I left for my current position, there were a couple others, but the only other young female casually told me one day that she hates other women. A little piece of my soul died. Good female friendships are the best, and I really miss regularly interacting with lots of other girls my age. Also, I think it's really important for girls to support other girls, especially in career paths that women don't "traditionally" take.