Travel Budget for Faculty Members in USA How much budget do faculty members in US  have to travel to conferences every year? 

I am looking for the average travel support in CS or Engineetring  departments (not out of my own contracts) across US top 100 schools, for tenured professors with accepted papers at conferences. Consider places like University of Washington. 

The background of the this question is, I like to find out, once my tenure track funding package is finished, would there be a minimum research support from the department, or I am on my own. It makes sense that if my paper is accepted, the university pays for it (I present my work under the university banner). Before asking my department, I like to equip myself with prior information.
Although I am a mathematician and not a CS or engineering professor, I would overwhelmingly expect that at a place like the University of Washington tenure track faculty members would be expected to secure external grant funding (for example from the NSF) and use this to cover their travel expenses.

Universities often provide startup funds which you can use for this purpose during the first couple of years -- but these don't get renewed when you run out.

In the long run, if you don't succeed in obtaining external funding, it is unlikely that your department would rush in to fill the gap. My department (less prestigious than Washington) provides a little bit of money to faculty members without grant support, but it is only enough to attend to one or maybe two conferences a year.