Lion06,
I agree with weab - very dependent on the size and type of structural firm. My circle of friends and I are based on the west coast (SF, San Jose, Seattle) and 80K is average for 9-12 years of experience. That is for a mid to senior level engineer with project management responsibility. This is based on a small to mid-size private consulting firm doing small to medium size projects -- not talking Bechtel/Flour/TY Lin/PB/AECom/etc (have no idea what those guys pay). For this type of private firm, 75-80K for 5 yrs experience is unheard of. Also, if you go to one of those online cost-of-living calculators and you take 75K in SF or Seattle, it is comparable to 47-52K in Philly. So based on that I would say you are doing very well for yourself, though you would probably disagree. My biggest pay raise came after switching jobs -- making 65K after 7 years of experience switched companies and got an 80K base salary. I think the only way to get a substantial raise after you have completed 4-6 years of experience and pass the PE exam is to switch companies. It is difficult to do, and often the expectations will be much higher of your new employer with the pressure to produce becoming overwhelming at times, but change can be good...
By the way, this is my very first post ever. I hope to be helpful on the technical forums...