One of the best engineering schools, IMHO, is the Colorado School of Mines. It's where my brother went many years ago and if your daughter decides to pursue graduate studies, other universities seriously recruit these students. Most state schools will also do a fine job - my alma mater, Texas A&M, for example is one of them.

You should also look on the flip side and have your daughter learn what it is like to be a woman in a female dominated field. As a veterinarian I went to school with 130 others, about 15 of them were male. Not as fun as it sounds and I think a good mix between the two genders is better. At my workplace, it's all women and sometimes I wish they could just stop gossiping for 10 seconds and get their work done.

Either way, if it's something she's really interested in, she should pursue her interests and not worry about the gender gap. After all, we all have to work, might as well like getting up most mornings and going there!