Go for it! There is no better job.
The students I work with will be Civil Engineers and work in all areas including municipal, provincial, and federal governments, consulting, industry, not-for-profit entities, and international development organizations.
My work place is male-dominated but is becoming less so as compared to 25 years ago. To negotiate this type of workplace, I just be myself and don't worry about what people think when I give my opinions.
I have had a good mix of graduate students that include female students. On hiring committees, I am also watching to see if there seems like there might be discrimination.
Institution needs to ensure that there are a significant number of female faculty, who serve as examples and change the environment of the institution just by being there.
Go for it! There is no better job. The work will be interesting for your entire life and you have a real opportunity at impacting society. The idea that practicing engineers spend all their time doing math is wrong. You don’t have to be a construction site manager either (but can if you want). The job opportunities are broad. One of my recent students suggest engineering could be defined better by “Engineering uses the creativity of art and the tools of science to serve society in solving problems.”. We work with people to solve problems and this is one of the most important aspects of our job.
My role models are those that are successful engineering practitioners, either male or female, that I meet through work or my involvement in engineering professional societies. I find there is something to learn from everyone.