If we're paying it off over 20 years, that's 8.4 cents per mile driven. This doesn't include any necessary maintenance over those 20 years. I doubt the 20-30 cents figure is wrong. The person who was quoted was an elected official who dealt with a lot of transportation issues.
http://www.chron.com/disp/story.mpl/metropolitan/5450155.htm...
Estimated cost: $2.8 billion
Traffic: 207,000 per day (http://www.katyfreeway.org/background.html)
Length: 22 miles
Cost per mile per daily trip: $614.84
If we're paying it off over 20 years, that's 8.4 cents per mile driven. This doesn't include any necessary maintenance over those 20 years. I doubt the 20-30 cents figure is wrong. The person who was quoted was an elected official who dealt with a lot of transportation issues.