What is the time period to receive the toll road charges for car rentals in the Denver, CO area? how long should I expect to wait before any incurred toll charges are billed and forwarded to me?

Mine came about 2-3 weeks after use of the rental.

About 1 month to show up in your credit card

I usually receive my bill in the mail within a month. Although , one time i did receive one bill right away and another from the same trip a few weeks after. I called and they said that sonetimes happens.